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生物基对二甲苯:低廉木质纤维素通往绿色聚酯的桥梁

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对二甲苯(PX)是我国聚酯产业的龙头原料和化工产业的重要大宗产品,其主要用途是用于聚对苯二甲酸乙二醇酯(PET)的生产.随着我国"双碳"战略的普及,化学品制造业的原料逐渐从不可再生资源(石油、煤炭)向可再生资源转型.以木质纤维素生物质为原料生产生物基PX的工艺开发,既促进了木质纤维素这一可再生资源的综合利用,又推动了 PET聚酯单体绿色低碳制造的发展.基于此,综述了多种制备生物基PX的工艺路线研究现状,对比分析了其优劣势.结合工艺流程模拟和经济性分析,指出生物基PX工艺存在生产成本高、产能较低等问题,并初步提出了解决这些问题的主要思路.
BIOMASS-DERIVED PARAXYLENE:THE BRIDGE FROM LOW-COST LIGNOCELLULOSE TO SUSTAINABLE POLYESTER
Paraxylene(PX)is the leading raw material of polyester industry in China and an important bulk product in chemical industry.With the popularization of'Double Carbon'strategy in China,the raw materials of chemical manufacturing industry are gradually changing from non-renewable resources(petroleum and coal)to renewable resources.The development of bio-based PX production process from lignocellulosic biomass can not only promote the comprehensive utilization of lignocellulose as a renewable resource,but also promote the development of green and low-carbon manufacture of polyethylene terephthalate(PET)polyester monomer.Based on this,the research status of various preparation routes of bio-PX was reviewed,and their advantages and disadvantages were analyzed.Combined with process simulation and economic analysis,the problems of high production cost and low production capacity in bio-based PX process were pointed out.

lignocellulosebiomassp-xylenesustainable polymers

储昊东、冯心强、宋建婷、李梦迪、申春、谭天伟

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北京化工大学生命科学与技术学院,国家能源生物炼制研发中心,北京 100029

木质纤维素 生物质 对二甲苯 可再生聚酯

国家重点研发计划

2022YFC2104500

2024

石油炼制与化工
中国石油化工股份有限公司石油化工科学研究院

石油炼制与化工

CSTPCD北大核心
影响因子:0.825
ISSN:1005-2399
年,卷(期):2024.55(1)
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