文献类型：期刊文献

中文题名：生物质气化生产α-烯烃工艺公用工程的生命周期评价及多目标优化

英文题名：Life cycle assessment and multi-objective optimization of utility system of biomass gasification process forα-olefins production

作者：奚传栋[1];杨子旭[1];曹晨熙[2];韩一帆[1,3]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237;[2]华东理工大学能源化工过程智能制造教育部重点实验室,上海200237;[3]郑州大学先进功能材料制造教育部工程研究中心,河南郑州450001

年份：2025

卷号：50

期号：1

起止页码：65

中文期刊名：低碳化学与化工

外文期刊名：Low-Carbon Chemistry and Chemical Engineering

收录：;北大核心:【北大核心2023】；

基金：国家自然科学基金(22238003,22378118,22278405);化学工程联合国家重点实验室开放课题(GZA01220102)。

语种：中文

中文关键词：生命周期评价;生物质气化;α-烯烃生产工艺;公用工程;多目标优化

外文关键词：life cycle assessment;biomass gasification;α-olefin production process;utility system;multi-objective optimization

摘要：公用工程优化在节能减排中具有重要作用。为了有效提升生物质气化生产α-烯烃工艺的经济效益和环境绩效,采用非支配排序遗传算法II(NSGA-II),以经济成本和环境影响最小为目标,构建了生命周期公用工程系统多目标优化模型。分别选择煤、天然气和不凝气作为系统燃料,同时引入脱硫脱硝过程以满足SO_(2)和NO_(x)的排放标准。对比了优化前后工艺全流程的生命周期评价结果,验证了该优化方法的有效性。结果表明,在成本优先的情况下,选择煤和不凝气作为系统燃料能够获得较优的解决方案,其经济成本为115.56 CNY/h。在环境优先的情况下,选择天然气和不凝气作为系统燃料更具优势,其环境影响评价为3.92×10^(-12)h^(-1)。经过多目标优化(优化方案2B),工艺全流程的全球变暖潜力降低了24.54%,酸化潜力降低了30.55%,富营养化降低了4.20%,颗粒物降低了71.03%,其他环境影响类别评价亦有所改善。这验证了本文优化方法在促进α-烯烃生产工艺向可持续发展转型中的应用潜力。
Utility optimization plays a crucial role in energy conservation and emission reduction.To effectively enhance the economic and environmental performance of the biomass gasification process forα-olefin production,a multi-objective optimization model for the life cycle utility system was constructed using the Non-dominated Sorting Genetic Algorithm II(NSGA-II),targeting minimal economic cost and environmental impact.Coal,natural gas,and non-condensable gas were selected as system fuels,with desulfurization and denitrification processes introduced to meet SO_(2)and NO_(x) emission standards.The life cycle assessment results before and after optimization were compared to verify the effectiveness of the optimization method.The results indicate that,under cost-prioritized conditions,selecting coal and non-condensable gas as system fuels provides a more optimal solution,with an economic cost of 115.56 CNY/h.Under environment-prioritized conditions,selecting natural gas and non-condensable gas as system fuels is more advantageous,with an environmental impact assessment of 3.92×10^(-12)h^(-1).After multi-objective optimization(optimized scheme 2B),the global warming potential of the entire process,acidification potential,eutrophication potential and particulate matter are reduced by 24.54%,30.55%,4.20%and 71.03%,respectively,and improvements also observe in the assessments of other environmental impact categories.This validates the potential application of the optimization method in promoting the sustainable development transition of theα-olefin production process.