混合住宅垃圾水热液化过程中原料特性和反应条件对生物原油生产的有益协同效应

IF 3.7 3区 工程技术 Q2 ENGINEERING, CHEMICAL Chinese Journal of Chemical Engineering Pub Date : 2024-11-01 DOI:10.1016/j.cjche.2024.09.002
Vaishnavi Mahadevan , Sathishkumar Kannaiyan , Gopinath Kannappan Panchamoorthy
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摘要

水热液化(HTL)是一种很有前景的可持续废物管理和可再生能源生产方法,它能将混合原料转化为生物原油,而生物原油是各种生物燃料的前体。一项以混合住宅垃圾(MRW)为 HTL 原料的研究调查了温度范围(280-360 °C)和停留时间(30 分钟-90 分钟),在 340 °C、75 分钟的条件下,生物原油的最高产量为 39.16%。此外,还对 MRW 原料中所有子成分之间的协同关系进行了深入研究,得出结论认为,混合废料(MW)原料样品含有较高比例的食品和塑料废料,而 MRW 样品在生产生物原油时的共液化率(CE)分别约为 60% 和 107%。此外,还测试了乙醇、甘油和水相(AQ)等溶剂作为水热介质的潜力,发现在 AQ 相循环的情况下,生物原油产量为 46.19%。此外,还测试了单独使用四种不同催化剂以及将其与 AQ 相循环结合使用的定量和定性效果,结果发现,虽然单独使用纳米多孔氧化锌和硅藻土(DE)的生物原油产率分别为 46.86% 和 42.68%,但将其与 AQ 结合使用时,DE cat-HTL 的生物原油产率最高,达到 54.35%。此外,从质量上看,DE cat-HTL 和 AQ 的生物原油的碳和能量回收率分别为 62.20% 和 72.95%,碳氢化合物含量高达 58.98%。
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Beneficial synergetic effect of feedstock characteristics and reaction conditions on bio crude production from hydrothermal liquefaction of mixed residential waste
Hydrothermal liquefaction (HTL) is a promising method for sustainable waste management and renewable energy production, converting mixed feedstocks into bio-crude, a precursor to various biofuels. A study focused on mixed residential waste (MRW) as an HTL feedstock investigated temperature ranges (280–-360 °C) and residence times (30 min–90 min), achieving a maximum bio-crude yield of 39.16% at 340 °C and 75 min. Also, a thorough investigation of the synergistic relationships between all subcomponents of the MRW feedstock was conducted and concluded that the mixed waste (MW) feedstock samples containing a higher proportion of food and plastic wastes and MRW sample presented with a co-liquefaction percentage (CE) of around 60% and 107% respectively for production of bio crude. Also, solvents such as ethanol, glycerol and aqueous phase (AQ) were tested for their potential as hydrothermal mediums and found that bio crude yield of 46.19% was obtained in case of AQ phase recirculation. Further, the quantitative and qualitative effect of usage of four different catalysts were tested individually and in combination with AQ phase recirculation and found that, although individually nanoporous ZnO and diatomaceous earth (DE) yielded bio crude in the range of 46.86% and 42.68% respectively, when used in combination, DE cat–HTL with AQ resulted in maximum bio crude yield of 54.35%. Furthermore, qualitatively, the bio crude from DE cat–HTL with AQ presented with a high carbon and energy recovery percentage of 62.20% and 72.95% respectively and a high hydrocarbon content of 58.98%.
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来源期刊
Chinese Journal of Chemical Engineering
Chinese Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
6.60
自引率
5.30%
发文量
4309
审稿时长
31 days
期刊介绍: The Chinese Journal of Chemical Engineering (Monthly, started in 1982) is the official journal of the Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co. Ltd. The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering. It publishes original research papers that cover the major advancements and achievements in chemical engineering in China as well as some articles from overseas contributors. The topics of journal include chemical engineering, chemical technology, biochemical engineering, energy and environmental engineering and other relevant fields. Papers are published on the basis of their relevance to theoretical research, practical application or potential uses in the industry as Research Papers, Communications, Reviews and Perspectives. Prominent domestic and overseas chemical experts and scholars have been invited to form an International Advisory Board and the Editorial Committee. It enjoys recognition among Chinese academia and industry as a reliable source of information of what is going on in chemical engineering research, both domestic and abroad.
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