劣质重芳烃资源及其化工产品转化技术

doi:10.16085/j.issn.1000-6613.2017-1141

摘要/Abstract

摘要： 随着炼油和化工产业的快速发展，国内每年有多达数千万吨的劣质重芳烃副产，包括来自芳烃联合装置的重整C₁₀⁺芳烃（HAB）、蒸汽裂解制乙烯装置的乙烯焦油（PGO）、炼油催化裂化装置的轻柴油（LCO）和煤基直接合成油（CTL）等。随着柴油和汽油标准的不断提高，将这些劣质重芳烃资源加工成柴油或汽油的方案已越来越不经济。另一方面，芳烃产品需求巨大，增量迅速，且进口依赖度很高，特别是对二甲苯产品。从这些劣质重芳烃原料经济地生产轻质芳烃和烯烃裂解原料，将具有重要的经济和技术意义。本文从HAB、PGO、LCO和CTL原料的来源、组成特点和利用现状入手，综合分析了国内劣质重芳烃资源的状况。结合中国石化上海石油化工研究院在此领域的研究进展，分析了适宜的原料预处理方案，对比了各种劣质重芳烃化工产品转化技术和催化剂体系。基于中国石化上海石油化工研究院开发的劣质重芳烃转化的PAC平台技术，实现了最大化生产轻质芳烃，并副产乙烯、丙烯等重要有机化工原料的目标。

关键词: 劣质重芳烃, 芳烃, 烯烃, 稠环芳烃, 加氢

Abstract: With the rapid development of refinery and petrochemical industry in China,there are tens of millions poor quality heavy aromatics produced annually,including reforming C₁₀⁺ aromatics from aromatics complexes(HAB),ethylene tar from steam cracking plants(PGO),light cycle oil from fluidized catalytic cracking plants(FCC)in refinery(LCO),and direct synthetic oil from coal(CTL). In the near future,the gasoline and diesel standards will be upgraded to higher levels. It is getting less and less economically feasible to produce gasoline or diesel fuels from poor quality heavy aromatics. On the other hand,the market demands for xylenes,especially p-xylene,are gigantic and keeping soaring in China,and almost half of p-xylene consumption is supplemented by import. Therefore,it is extremely meaningful economically and technologically to produce light aromatics and olefins from poor quality heavy aromatics alternatively. Starting from systematic analysis of the sources,composition features,and utilization status of HAB,PGO,LCO and CTL feedstocks,the resources of poor quality heavy aromatics were systematically described. This paper also analyzed proper pre-treating solutions to various feedstocks,as well as compared relevant processing technologies to produce basic petrochemicals from different poor quality heavy aromatics including the new research advances in Sinopec Shanghai Research Institute of Petrochemical Technology (SRIPT). Based on the PAC (polycyclic aromatics cracking) platform technology developed in SRIPT,the light aromatics and saturated light hydrocarbons could be produced from these four kinds of poor quality aromatics.

Key words: low quality heavy aromatics, aromatics, olefin, polycyclic aromatics, hydrogenation

中图分类号:

TE624.4

郑均林, 徐旋, 祁晓岚, 孔德金. 劣质重芳烃资源及其化工产品转化技术[J]. 化工进展, 2017, 36(10): 3665-3673.

ZHENG Junlin, XU Xuan, QI Xiaolan, KONG Dejin. Low quality heavy aromatic resources and relevant processing technology to produce fundamental petrochemicals[J]. Chemical Industry and Engineering Progress, 2017, 36(10): 3665-3673.

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