Watchara Sutaro, Jirapat Sarattawipak, Tanakorn Phuengklay, Pasakorn Kupasittirat, Sutipol Prommachan, Punyanich Intharapat, N. Phinichka, Akarin Boonsombuti, C. Phalakornkule
Sugarcane (Saccharum officinarum L.) leaf is an abundant waste from agriculture. In this study, we prepared binderless fiberboards from sugarcane leaf with <3 % moisture (w/w) and <1 mm in size by hot‐pressing temperature in the 210–240 °C range, followed by surface coating with polyurethane. The effect of hot‐pressing temperature on the modulus of elasticity (MOE), modulus of rupture (MOR), internal bonding (IB) strength, and thickness swelling of the binderless sugarcane leaves was investigated. An optimal pressing condition for preparing the binderless sugarcane leaf fiberboards was 230 °C for pressing temperature, 5 MPa for pressing pressure, and 600 s for pressing time, giving 1200 kg m−3 for board density, MOE of 657.1 MPa, MOR of 7.04 MPa, and IB strength of 0.277 MPa. The thickness swelling of the coated samples was almost completely eliminated by the surface coating.
{"title":"Valorization of Sugarcane Leaf to Binderless Fiberboards by Hot‐Pressing Process and Polyurethane Coating","authors":"Watchara Sutaro, Jirapat Sarattawipak, Tanakorn Phuengklay, Pasakorn Kupasittirat, Sutipol Prommachan, Punyanich Intharapat, N. Phinichka, Akarin Boonsombuti, C. Phalakornkule","doi":"10.1002/ceat.202400064","DOIUrl":"https://doi.org/10.1002/ceat.202400064","url":null,"abstract":"Sugarcane (Saccharum officinarum L.) leaf is an abundant waste from agriculture. In this study, we prepared binderless fiberboards from sugarcane leaf with <3 % moisture (w/w) and <1 mm in size by hot‐pressing temperature in the 210–240 °C range, followed by surface coating with polyurethane. The effect of hot‐pressing temperature on the modulus of elasticity (MOE), modulus of rupture (MOR), internal bonding (IB) strength, and thickness swelling of the binderless sugarcane leaves was investigated. An optimal pressing condition for preparing the binderless sugarcane leaf fiberboards was 230 °C for pressing temperature, 5 MPa for pressing pressure, and 600 s for pressing time, giving 1200 kg m−3 for board density, MOE of 657.1 MPa, MOR of 7.04 MPa, and IB strength of 0.277 MPa. The thickness swelling of the coated samples was almost completely eliminated by the surface coating.","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141369347","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}
Shivika Sharma, R. Stanley, Pankaj Tiwari, S. Basu, Vivekanand Vivekanand, Neetu Kumari
Solid oxide electrolysis cell (SOEC) is a potential technology for converting the principal greenhouse gas, carbon dioxide (CO2), into carbon monoxide (CO) by employing renewable energy. SOECs have great potential, including high‐energy efficiency, fast electrode kinetics, and competitive cost; however, this technology still has challenges in developing highly active, robust CO2 cathode electrocatalysts. In this work, we report the Ni‐doped lanthanum strontium calcium titanate (La0.20Sr0.25Ca0.45Ni0.05Ti0.95O3−δ) cathode for application as the cathode of CO2 electrolysis with gadolinia‐doped ceria (Gd0.1Ce0.9O1.95) electrolyte in SOEC. The exsolution of Ni nanoparticles is achieved by a simple in situ growth method at 800 °C. The Ni doping in LSCT significantly improved the electrochemical activity of the catalyst by increasing oxygen vacancies, and the Ni metallic nanoparticles can afford much more active sites for CO2 reduction. The CO2 electrolysis mechanism is studied by the distribution of relaxation time analysis of impedance spectroscopy. Ni‐LSCT renders a higher activity for electrolysis of CO2 with an exceptionally high reduction current density of 3.89 A cm−2 at 2.5 V potential applied and 800 °C temperature with GDC (Gd0.1Ce0.9O1.95) electrolyte. Ni doping is a crucial factor in controlling the electrochemical performance and catalytic activity in SOEC and GDC electrolytes, which is further helped by the high ionic conductivity.
固体氧化物电解池（SOEC）是一种利用可再生能源将主要温室气体二氧化碳（CO2）转化为一氧化碳（CO）的潜在技术。SOEC 具有巨大的潜力，包括高能效、快速电极动力学和具有竞争力的成本；然而，该技术在开发高活性、坚固的 CO2 阴极电催化剂方面仍面临挑战。在这项工作中，我们报告了掺杂镍的钛酸镧锶钙盐（La0.20Sr0.25Ca0.45Ni0.05Ti0.95O3-δ）阴极在 SOEC 中用作掺杂钆的陶瓷（Gd0.1Ce0.9O1.95）电解质的二氧化碳电解阴极。镍纳米颗粒的溶解是通过一种简单的原位生长方法在 800 °C 下实现的。通过增加氧空位，LSCT 中的掺杂镍大大提高了催化剂的电化学活性。通过阻抗光谱的弛豫时间分布分析，研究了二氧化碳的电解机理。在施加 2.5 V 电位和 800 °C 温度条件下，Ni-LSCT 与 GDC（Gd0.1Ce0.9O1.95）电解质可产生 3.89 A cm-2 的超高还原电流密度，具有更高的电解二氧化碳活性。在 SOEC 和 GDC 电解质中，掺杂镍是控制电化学性能和催化活性的关键因素，而高离子电导率则进一步促进了镍的掺杂。
{"title":"Enhancing Electrochemical Efficiency of Solid Oxide Electrolysis Cells for Carbon Dioxide Reduction Through Nickel‐Doped Titanate‐Based Cathode with Doped Ceria Electrolyte","authors":"Shivika Sharma, R. Stanley, Pankaj Tiwari, S. Basu, Vivekanand Vivekanand, Neetu Kumari","doi":"10.1002/ceat.202400046","DOIUrl":"https://doi.org/10.1002/ceat.202400046","url":null,"abstract":"Solid oxide electrolysis cell (SOEC) is a potential technology for converting the principal greenhouse gas, carbon dioxide (CO2), into carbon monoxide (CO) by employing renewable energy. SOECs have great potential, including high‐energy efficiency, fast electrode kinetics, and competitive cost; however, this technology still has challenges in developing highly active, robust CO2 cathode electrocatalysts. In this work, we report the Ni‐doped lanthanum strontium calcium titanate (La0.20Sr0.25Ca0.45Ni0.05Ti0.95O3−δ) cathode for application as the cathode of CO2 electrolysis with gadolinia‐doped ceria (Gd0.1Ce0.9O1.95) electrolyte in SOEC. The exsolution of Ni nanoparticles is achieved by a simple in situ growth method at 800 °C. The Ni doping in LSCT significantly improved the electrochemical activity of the catalyst by increasing oxygen vacancies, and the Ni metallic nanoparticles can afford much more active sites for CO2 reduction. The CO2 electrolysis mechanism is studied by the distribution of relaxation time analysis of impedance spectroscopy. Ni‐LSCT renders a higher activity for electrolysis of CO2 with an exceptionally high reduction current density of 3.89 A cm−2 at 2.5 V potential applied and 800 °C temperature with GDC (Gd0.1Ce0.9O1.95) electrolyte. Ni doping is a crucial factor in controlling the electrochemical performance and catalytic activity in SOEC and GDC electrolytes, which is further helped by the high ionic conductivity.","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":"12 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141105082","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}
Natthaphon Ardhan, P. Tongpadungrod, W. Songkasiri, T. Suttikul, C. Phalakornkule
In this study, a field study was presented on upgrading the biogas generated from shrimp processing wastewater (sfw‐biogas) that had H2S of 5000–6000 ppm, CO2 13–32 %, and CH4 68–87 % using the oxidative absorption of H2S in iron‐chelated solution in series with vacuum pressure swing adsorption (VPSA). The regeneration of the adsorbent treating sfw‐biogas required a shorter evacuation time than that of treating the biogas with a typical composition of 60 % CH4 (t‐biogas). The VPSA process treating sfw‐biogas required half the evacuation time and 26 % lower energy consumption. However, the methane recovery decreased from 80 % for t‐biogas to 65 % for sfw‐biogas.
{"title":"Upgrading of Biogas Generated from Shrimp Processing Effluent Using Vacuum Pressure Swing Adsorption","authors":"Natthaphon Ardhan, P. Tongpadungrod, W. Songkasiri, T. Suttikul, C. Phalakornkule","doi":"10.1002/ceat.202300454","DOIUrl":"https://doi.org/10.1002/ceat.202300454","url":null,"abstract":"In this study, a field study was presented on upgrading the biogas generated from shrimp processing wastewater (sfw‐biogas) that had H2S of 5000–6000 ppm, CO2 13–32 %, and CH4 68–87 % using the oxidative absorption of H2S in iron‐chelated solution in series with vacuum pressure swing adsorption (VPSA). The regeneration of the adsorbent treating sfw‐biogas required a shorter evacuation time than that of treating the biogas with a typical composition of 60 % CH4 (t‐biogas). The VPSA process treating sfw‐biogas required half the evacuation time and 26 % lower energy consumption. However, the methane recovery decreased from 80 % for t‐biogas to 65 % for sfw‐biogas.","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":"59 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141108386","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}
{"title":"2nd Energy Security and Chemical Engineering Congress: ESChE 2021","authors":"Hayder A. Abdulbari","doi":"10.1002/ceat.202271005","DOIUrl":"https://doi.org/10.1002/ceat.202271005","url":null,"abstract":"","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"118484477","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}
Monther Alsboul, M. Ghazali, Mohamed Reda Ramadan Gomaa, A. Albani
{"title":"Experimental and theoretical investigations of temperature and solid volume fraction‐dependent thermal conductivity of Erbium oxide/Ethylene Glycol (Er\u0000 2\u0000 O\u0000 3\u0000 /EG) nanofluid for thermal energy applications","authors":"Monther Alsboul, M. Ghazali, Mohamed Reda Ramadan Gomaa, A. Albani","doi":"10.1002/ceat.202200159","DOIUrl":"https://doi.org/10.1002/ceat.202200159","url":null,"abstract":"","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120047214","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}
Jae Won Choi, Seokhee Shin, S. Park, P. Youn, Seungho Yu, Daewook Kim, Jeong-Hoo Choi, Ki Chul Kim
{"title":"Temperature Difference Based Fouling Detection in Heat Exchanger of Gas‐Solid Fluidized Beds","authors":"Jae Won Choi, Seokhee Shin, S. Park, P. Youn, Seungho Yu, Daewook Kim, Jeong-Hoo Choi, Ki Chul Kim","doi":"10.1002/ceat.202200188","DOIUrl":"https://doi.org/10.1002/ceat.202200188","url":null,"abstract":"","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"118388451","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}
{"title":"Intermediate Pyrolysis of Desert Date Shell for Conversion to High‐Quality Biomaterial Resources","authors":"Garba Kabir, I. Mohammed, Y. Abakr, B. Hameed","doi":"10.1002/ceat.202200095","DOIUrl":"https://doi.org/10.1002/ceat.202200095","url":null,"abstract":"","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":"577 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117990159","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}
{"title":"Foam in Absorption Columns with Structured Packings – Part 2: Inhibition and Destruction","authors":"Hannes Leuner, S. J. Gerke, M. Illner, J. Repke","doi":"10.1002/ceat.202200050","DOIUrl":"https://doi.org/10.1002/ceat.202200050","url":null,"abstract":"","PeriodicalId":319706,"journal":{"name":"Chemical Engineering & Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"119880711","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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