小龙虾废弃物热解及多联产工艺生命周期评价

IF 1.6 4区工程技术 Q3 ENGINEERING, CHEMICAL

Canadian Journal of Chemical Engineering Pub Date : 2024-11-06 DOI:10.1002/cjce.25535

Zhichao Zhang, Haiqing Sui, Chao Tian, Hao Sun, Wei Xiong, Lijun Wang, Yubo Wang, Wenxi Wang, Jin Lan, Huijing Deng

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引用次数: 0

摘要

以小龙虾壳为原料，研究了利用固体废物的快速热解多联产系统。结果表明，生物油和生物炭分别占26wt和58wt。%，热解温度为600℃。杂环化合物，特别是吡咯和吡啶，是生物油中主要的含氮产物。生命周期评价（LCA）表明，与其他热解温度相比，该体系在600℃时的环境影响最低，ADP为881 MJ/t， GWP100为77.5 kg CO2 eq/t， POCP为- 0.0128 kg C2H4 eq/t， AP为- 0.0402 kg SO2 eq/t， EP为0.501 kg po4 eq/t。另外，生物炭的成本为415.27美元/吨。该研究为有效、全面地将贝类废弃物转化为生物炭和平台化学品开辟了新的途径和见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Pyrolysis of crayfish waste and life cycle assessment of polygeneration process

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Pyrolysis of crayfish waste and life cycle assessment of polygeneration process

A fast pyrolysis polygeneration system was investigated using crayfish shells as a resource for the utilization of solid wastes. Results showed that the bio-oil and the biochar accounted for 26 and 58 wt.% at a pyrolysis temperature of 600°C, respectively. Heterocyclic compounds, specifically pyrrole and pyridine, were generated as the major nitrogen-containing products in the bio-oil. A life cycle assessment (LCA) demonstrated the environmental impact of the system was the lowest at 600°C compared with that of other pyrolytic temperatures, with ADP of 881 MJ/t, GWP100 of 77.5 kg CO₂ eq/t, POCP of −0.0128 kg C₂H₄ eq/t, AP of −0.0402 kg SO₂ eq/t, and EP of 0.501 kg ${PO}_{4}^{3 -}$ eq/t. Additionally, the cost amounted to 415.27 USD/t of biochar. The study opens a new pathway and insights to transform the shellfishery waste into biochar and platform chemicals efficiently and comprehensively.

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来源期刊

Canadian Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

3.60

自引率

14.30%

发文量

448

审稿时长

3.2 months

期刊介绍： The Canadian Journal of Chemical Engineering (CJChE) publishes original research articles, new theoretical interpretation or experimental findings and critical reviews in the science or industrial practice of chemical and biochemical processes. Preference is given to papers having a clearly indicated scope and applicability in any of the following areas: Fluid mechanics, heat and mass transfer, multiphase flows, separations processes, thermodynamics, process systems engineering, reactors and reaction kinetics, catalysis, interfacial phenomena, electrochemical phenomena, bioengineering, minerals processing and natural products and environmental and energy engineering. Papers that merely describe or present a conventional or routine analysis of existing processes will not be considered.