Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0049
A. Ołtarzewska, D. Krawczyk
Abstract Heat pumps are increasingly popular in individual buildings and could help to meet expectations of ambitious energy-environmental European goals until 2050. This paper presents the results of energy simulations conducted in TRNSYS for a single-family building depending on its location in selected European cities. For each city, air source heat pump (ASHP) was considered as an energy source for heating and cooling the building, and then an economic analysis was carried out including investment costs of air source heat pump and a comparison of operating costs of ASHP with other alternatives (i.e. gas boiler, oil boiler, or air conditioners). The results of the simulations showed that with the current energy prices the use of air source heat pumps is the most beneficial in temperate warm transitional climate (Krakow). It was also indicated that the implementation of special tariffs (reduced prices) for electricity that supplies renewable energy devices would make heat pumps unmatched as a source of heating and cooling in the residential sector.
{"title":"Analysis of Heat Pumps Efficiency in Selected Locations – A Case Study","authors":"A. Ołtarzewska, D. Krawczyk","doi":"10.2478/rtuect-2022-0049","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0049","url":null,"abstract":"Abstract Heat pumps are increasingly popular in individual buildings and could help to meet expectations of ambitious energy-environmental European goals until 2050. This paper presents the results of energy simulations conducted in TRNSYS for a single-family building depending on its location in selected European cities. For each city, air source heat pump (ASHP) was considered as an energy source for heating and cooling the building, and then an economic analysis was carried out including investment costs of air source heat pump and a comparison of operating costs of ASHP with other alternatives (i.e. gas boiler, oil boiler, or air conditioners). The results of the simulations showed that with the current energy prices the use of air source heat pumps is the most beneficial in temperate warm transitional climate (Krakow). It was also indicated that the implementation of special tariffs (reduced prices) for electricity that supplies renewable energy devices would make heat pumps unmatched as a source of heating and cooling in the residential sector.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84337592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0076
Erlanda Atvare, Edgars Kudurs, D. Blumberga
Abstract The last decade in particular has seen prosperity in global challenges. Traditional industry leaders have to compete with the challenges of the new generation in emerging markets. Although the European market is competitively mature, the prosperity in global challenges makes it necessary to defend the domestic market as well as to pursue growth opportunities in emerging markets. Analyzing the trends, a comparison of the US and Chinese innovation commercialization policies from a customer perspective with Europe was distinguished. The main difference is Europe's narrowly defined customer segment, companies do not adapt to customer micro-segments with non-matching product and service requirements, because individual attraction strategies must be implemented for each branch, which increase the difficulty to draw potential global clients. The aim of this work is to analyze the US and Chinese innovation commercialization process policies from a customer perspective to gain an insight into the improvement of European national policy models. A multi-criteria decision analysis was used to compare the US and European influencing factor criteria, which focuses on customer segmentation, to determine the most influential segment. Data were also collected in the analysis of the success of European commercialization. The focus on the US end-market approach is expected to increase the value of the proximity factor by improving the implementation of European innovation policy in practice.
{"title":"Differences in Commercialization Policies of Innovations. Customer Perspective","authors":"Erlanda Atvare, Edgars Kudurs, D. Blumberga","doi":"10.2478/rtuect-2022-0076","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0076","url":null,"abstract":"Abstract The last decade in particular has seen prosperity in global challenges. Traditional industry leaders have to compete with the challenges of the new generation in emerging markets. Although the European market is competitively mature, the prosperity in global challenges makes it necessary to defend the domestic market as well as to pursue growth opportunities in emerging markets. Analyzing the trends, a comparison of the US and Chinese innovation commercialization policies from a customer perspective with Europe was distinguished. The main difference is Europe's narrowly defined customer segment, companies do not adapt to customer micro-segments with non-matching product and service requirements, because individual attraction strategies must be implemented for each branch, which increase the difficulty to draw potential global clients. The aim of this work is to analyze the US and Chinese innovation commercialization process policies from a customer perspective to gain an insight into the improvement of European national policy models. A multi-criteria decision analysis was used to compare the US and European influencing factor criteria, which focuses on customer segmentation, to determine the most influential segment. Data were also collected in the analysis of the success of European commercialization. The focus on the US end-market approach is expected to increase the value of the proximity factor by improving the implementation of European innovation policy in practice.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82098479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0058
Aiman Albatayneh
Abstract Jordan and many countries unfortunately have no up-to-date reliable data on the share of electrical energy consumption by end-use in its residential buildings. Therefore, to determine the share in Jordan’s middle district, detailed data was completed for around 350 buildings. The participants in this survey were engineering students in their final year of an energy auditing course in the German Jordanian University. The data were used to determine the primary share of electrical energy end-use in residential buildings. These data, the first of their kind in Jordan, were recorded by trained participants and are essential for the adoption of appropriate future energy efficiency programs in Jordan. These shares of electrical energy consumption by end use in residential buildings in Jordan are the first of their kind it is necessary to ensure adequate planning for future energy efficiency programs in Jordan and this will enable policymakers to support certain technologies and implement large-scale energy efficiency programs in the residential sector.
{"title":"The Share of Energy Consumption by End Use in Electrical Residential Buildings in Jordan","authors":"Aiman Albatayneh","doi":"10.2478/rtuect-2022-0058","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0058","url":null,"abstract":"Abstract Jordan and many countries unfortunately have no up-to-date reliable data on the share of electrical energy consumption by end-use in its residential buildings. Therefore, to determine the share in Jordan’s middle district, detailed data was completed for around 350 buildings. The participants in this survey were engineering students in their final year of an energy auditing course in the German Jordanian University. The data were used to determine the primary share of electrical energy end-use in residential buildings. These data, the first of their kind in Jordan, were recorded by trained participants and are essential for the adoption of appropriate future energy efficiency programs in Jordan. These shares of electrical energy consumption by end use in residential buildings in Jordan are the first of their kind it is necessary to ensure adequate planning for future energy efficiency programs in Jordan and this will enable policymakers to support certain technologies and implement large-scale energy efficiency programs in the residential sector.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82807181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0031
V. Danila, T. Januševičius
Abstract The purpose of the study was to evaluate the possibility of removing heavy metal cations from single-metal spiked soil samples, which were pretreated with nanoscale zero-valent iron (nZVI) particles. Sandy soil was artificially contaminated with copper (Cu), cadmium (Cd), nickel (Ni), and lead (Pb). Contaminated soil samples were amended with different doses of nZVI (0.35, 0.70 and 1.05 %). A sequential extraction method was used to determine the fractionation of heavy metal cations in the control and nZVI amended soil samples. A solution of 0.1 M acetic acid (pH 3.0) was used to investigate the removal of heavy metals from control and nZVI-amended soil samples. The results showed that nZVI reduced the amount of metals in the exchangeable form and increased the proportion of these metals associated with amorphous iron (Fe) oxides. The results also showed that the removal efficiencies of heavy metals increased with increasing nZVI dose, that is, from 46.9 %, 5.77 %, 33.5 %, and 2.70 % to 55.9 %, 12.3 %, 46.2 %, and 3.79 % for Cd, Cu, Ni, and Pb, respectively. The study indicated that the application of nZVI in soil could be beneficial for subsequent removal of heavy metals from soil using 0.1 M acetic acid solution.
{"title":"Removal of Cd, Cu, Ni, and Pb from Nanoscale Zero-Valent Iron Amended Soil Using 0.1 M Acetic Acid Solution","authors":"V. Danila, T. Januševičius","doi":"10.2478/rtuect-2022-0031","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0031","url":null,"abstract":"Abstract The purpose of the study was to evaluate the possibility of removing heavy metal cations from single-metal spiked soil samples, which were pretreated with nanoscale zero-valent iron (nZVI) particles. Sandy soil was artificially contaminated with copper (Cu), cadmium (Cd), nickel (Ni), and lead (Pb). Contaminated soil samples were amended with different doses of nZVI (0.35, 0.70 and 1.05 %). A sequential extraction method was used to determine the fractionation of heavy metal cations in the control and nZVI amended soil samples. A solution of 0.1 M acetic acid (pH 3.0) was used to investigate the removal of heavy metals from control and nZVI-amended soil samples. The results showed that nZVI reduced the amount of metals in the exchangeable form and increased the proportion of these metals associated with amorphous iron (Fe) oxides. The results also showed that the removal efficiencies of heavy metals increased with increasing nZVI dose, that is, from 46.9 %, 5.77 %, 33.5 %, and 2.70 % to 55.9 %, 12.3 %, 46.2 %, and 3.79 % for Cd, Cu, Ni, and Pb, respectively. The study indicated that the application of nZVI in soil could be beneficial for subsequent removal of heavy metals from soil using 0.1 M acetic acid solution.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80941482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0094
Ngakan Ketut Acwin Dwijendra, O. Candra, Ihsan Ali Mubarak, Hassan Taher Braiber, Muneam Hussein Ali, I. Muda, R. Sivaraman, A. Iswanto
Abstract This study focused on energy saving in energy hub system using smart grid technologies and management of the energy demand. The two-layer energy management is proposed for implementing energy saving. In first layer, energy demand such as electrical, thermal and natural gas are optimized subject to optimal level of the demand at day-ahead. Then, optimized energy demand is applied in second layer to reduction energy generation costs. The optimization of the proposed approach is done by shuffled frog leaping algorithm (SFLA), and results at several case studies to confirmation of the proposed approach are investigated.
{"title":"Optimal Energy-Saving in Smart Energy Hub Considering Demand Management","authors":"Ngakan Ketut Acwin Dwijendra, O. Candra, Ihsan Ali Mubarak, Hassan Taher Braiber, Muneam Hussein Ali, I. Muda, R. Sivaraman, A. Iswanto","doi":"10.2478/rtuect-2022-0094","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0094","url":null,"abstract":"Abstract This study focused on energy saving in energy hub system using smart grid technologies and management of the energy demand. The two-layer energy management is proposed for implementing energy saving. In first layer, energy demand such as electrical, thermal and natural gas are optimized subject to optimal level of the demand at day-ahead. Then, optimized energy demand is applied in second layer to reduction energy generation costs. The optimization of the proposed approach is done by shuffled frog leaping algorithm (SFLA), and results at several case studies to confirmation of the proposed approach are investigated.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82550553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0014
A. Londoño-Pineda, J. A. Cano
Abstract The United Nations announced its 2030 Agenda for Sustainable Development worldwide in 2015. Comprehensive assessments of member states’ performance towards achieving the related UN Sustainable Development Goals (SDGs) have since become a major challenge for national and subnational governments. This article presents a bibliometric analysis on the assessment of SDGs, at both the general and specific levels, based on 418 publications obtained from Scopus. The general level of analysis includes the number, types, and subject areas of documents published each year, as well as considerations such as the most-cited publications and the leading authors, journals, countries, institutional affiliations, and funders. The specific level of analysis includes a study of the relevant concepts in the publications and their relationships, allowing for the identification of predominant assessments under the 2030 Agenda, and of the most-often evaluated SDGs. Results indicated a focus on measuring impacts and risks, with SDGs 3, 6, 13, 7, 8, and 4 having been assessed the most often among the 17 SDGs, which is consistent with findings in prevalent subject areas such as environmental sciences, social sciences, medicine, and energy. Future works should address assessments under the 2030 Agenda more comprehensively, including analyses on trade-offs among the SDGs and on the transversal nature of some of these goals.
{"title":"Assessments under the United Nations Sustainable Development Goals: A Bibliometric Analysis","authors":"A. Londoño-Pineda, J. A. Cano","doi":"10.2478/rtuect-2022-0014","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0014","url":null,"abstract":"Abstract The United Nations announced its 2030 Agenda for Sustainable Development worldwide in 2015. Comprehensive assessments of member states’ performance towards achieving the related UN Sustainable Development Goals (SDGs) have since become a major challenge for national and subnational governments. This article presents a bibliometric analysis on the assessment of SDGs, at both the general and specific levels, based on 418 publications obtained from Scopus. The general level of analysis includes the number, types, and subject areas of documents published each year, as well as considerations such as the most-cited publications and the leading authors, journals, countries, institutional affiliations, and funders. The specific level of analysis includes a study of the relevant concepts in the publications and their relationships, allowing for the identification of predominant assessments under the 2030 Agenda, and of the most-often evaluated SDGs. Results indicated a focus on measuring impacts and risks, with SDGs 3, 6, 13, 7, 8, and 4 having been assessed the most often among the 17 SDGs, which is consistent with findings in prevalent subject areas such as environmental sciences, social sciences, medicine, and energy. Future works should address assessments under the 2030 Agenda more comprehensively, including analyses on trade-offs among the SDGs and on the transversal nature of some of these goals.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80878353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0092
K. Dolge, Ģirts Bohvalovs, V. Kirsanovs, A. Blumberga, D. Blumberga
Abstract At the end of 2019, the European Commission launched a new growth strategy called ‘The European Green Deal’ (GD), which aims to ‘transform the European Union (EU) into a fair and prosperous society with a modern, resource-efficient a competitive economy with no net greenhouse gas emissions in 2050 and where economic growth is decoupled from resource use’. This study present developed system dynamic (SD) tool for determining bioeconomy development until 2030 and impact of different GD strategy activities on achieved progress. The bioeconomy index the created and used to measure bioeconomy progress for all scenarios. The optimal scenario was identified between reaching climate goals and adding value to the agricultural, forestry and fisheries resources.
{"title":"Bioeconomy in the Shade of Green Deal: The System Dynamic Approach","authors":"K. Dolge, Ģirts Bohvalovs, V. Kirsanovs, A. Blumberga, D. Blumberga","doi":"10.2478/rtuect-2022-0092","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0092","url":null,"abstract":"Abstract At the end of 2019, the European Commission launched a new growth strategy called ‘The European Green Deal’ (GD), which aims to ‘transform the European Union (EU) into a fair and prosperous society with a modern, resource-efficient a competitive economy with no net greenhouse gas emissions in 2050 and where economic growth is decoupled from resource use’. This study present developed system dynamic (SD) tool for determining bioeconomy development until 2030 and impact of different GD strategy activities on achieved progress. The bioeconomy index the created and used to measure bioeconomy progress for all scenarios. The optimal scenario was identified between reaching climate goals and adding value to the agricultural, forestry and fisheries resources.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78984761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0066
A. Pagano, F. Romagnoli, E. Vannucci
Abstract The economic cultural heritages are exposed to several natural and nowadays biological hazards, which, in addition to causing potential structural damage, can lead to severe loss deriving from financial non-incomes. The paper aims to highlight the role of insurance in mitigating financial damages and losses, specifically explaining the key role of insurance in mitigating biological hazards like Covid-19. The paper is part of broader research by the authors and uses the assumptions and results already obtained previously in the context of the case study relating to the asset of Villa Adriana and Villa D’Este.
{"title":"Non-Incomes Risk Mitigation Mechanisms for Cultural Heritage: Role of Insurances Facing Covid-19 in the Italian Context","authors":"A. Pagano, F. Romagnoli, E. Vannucci","doi":"10.2478/rtuect-2022-0066","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0066","url":null,"abstract":"Abstract The economic cultural heritages are exposed to several natural and nowadays biological hazards, which, in addition to causing potential structural damage, can lead to severe loss deriving from financial non-incomes. The paper aims to highlight the role of insurance in mitigating financial damages and losses, specifically explaining the key role of insurance in mitigating biological hazards like Covid-19. The paper is part of broader research by the authors and uses the assumptions and results already obtained previously in the context of the case study relating to the asset of Villa Adriana and Villa D’Este.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76748806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0065
L. Rocchi, M. Farneselli, L. Paolotti, Beatrice Falcinelli, M. Guiducci, A. Boggia
Abstract Safflower is currently primarily cultivated as an industrial crop for its oil, which is used for food and industrial purposes, while the by-products can be used for animal feeding. Traditionally cultivated in the Mediterranean area, it was abandoned in the past for other oil crops, such as sunflower. However, it is now returning to be interesting due to its adaptability to low-input cultivation practices, especially when sown in autumn. The main aim of this study is to present a Life Cycle Inventory of safflower grown in a Southern European country, i.e. Italy, based on primary data on agricultural practices used in this country. The study was carried out following ISO 14040 and ISO 14044. Data were collected from experimental fields of the University of Perugia, to ensure a specific and accurate data collection for the definition of the complete supply chain. The reference unit of this study was defined as 1 ha. The stages from raw materials production to seed harvesting were considered. The data presented will be useful to increase the existing knowledge of safflower production in other Mediterranean countries.
{"title":"Life Cycle Inventory for Safflower Production in Southern Europe","authors":"L. Rocchi, M. Farneselli, L. Paolotti, Beatrice Falcinelli, M. Guiducci, A. Boggia","doi":"10.2478/rtuect-2022-0065","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0065","url":null,"abstract":"Abstract Safflower is currently primarily cultivated as an industrial crop for its oil, which is used for food and industrial purposes, while the by-products can be used for animal feeding. Traditionally cultivated in the Mediterranean area, it was abandoned in the past for other oil crops, such as sunflower. However, it is now returning to be interesting due to its adaptability to low-input cultivation practices, especially when sown in autumn. The main aim of this study is to present a Life Cycle Inventory of safflower grown in a Southern European country, i.e. Italy, based on primary data on agricultural practices used in this country. The study was carried out following ISO 14040 and ISO 14044. Data were collected from experimental fields of the University of Perugia, to ensure a specific and accurate data collection for the definition of the complete supply chain. The reference unit of this study was defined as 1 ha. The stages from raw materials production to seed harvesting were considered. The data presented will be useful to increase the existing knowledge of safflower production in other Mediterranean countries.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79121592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2478/rtuect-2022-0055
A. Inayat, L. Rocha‐Meneses, Z. Said, C. Ghenai, F. Ahmad, Aisha M Al-Ali, Fatemeh Mahmood, Noura Abdallah
Abstract Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It is particularly attractive due to its cost-effectiveness and low environmental impact. Therefore, this study utilizes coffee waste to produce activated carbon in a slow pyrolysis reactor at different reaction temperatures and residence times. The results obtained in this study show that bio-oil yields tend to increase when moderate reaction temperatures and short residence times are used. In contrast, the bio-char yields are higher at low reaction temperatures and long residence times. The Scanning Electron Microscopic (SEM) images of the coffee waste, bio-char, and activated carbon indicate that the pore size of the bio-char tends to decrease due to heating and tends to increase in the area after using ZnCl2 as activating agent. Coffee waste is a suitable feedstock for activating carbon production.
{"title":"Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor","authors":"A. Inayat, L. Rocha‐Meneses, Z. Said, C. Ghenai, F. Ahmad, Aisha M Al-Ali, Fatemeh Mahmood, Noura Abdallah","doi":"10.2478/rtuect-2022-0055","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0055","url":null,"abstract":"Abstract Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It is particularly attractive due to its cost-effectiveness and low environmental impact. Therefore, this study utilizes coffee waste to produce activated carbon in a slow pyrolysis reactor at different reaction temperatures and residence times. The results obtained in this study show that bio-oil yields tend to increase when moderate reaction temperatures and short residence times are used. In contrast, the bio-char yields are higher at low reaction temperatures and long residence times. The Scanning Electron Microscopic (SEM) images of the coffee waste, bio-char, and activated carbon indicate that the pore size of the bio-char tends to decrease due to heating and tends to increase in the area after using ZnCl2 as activating agent. Coffee waste is a suitable feedstock for activating carbon production.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72617705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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