Abstract: It is difficult for the fixed bed hydrogenation technology to process the coal tar heavy fractions containing high concentration of asphaltenes, metal, sulfide, nitride and other heteroatoms.This paper summarizes systematically the research progress, technical features and industrial application situation of the slurry-bed and ebullated-bed technologies that are well adapted to process coal tar heavy fractions or all fractions and discusses the development direction of coal tar heavy fraction hydrogenation.It is thought that the future research and development on coal tar heavy fraction hydrogenation will focus on optimizing the slurry bed hydrogenation pretreatment-fixed bed hydrogenation combined process, developing cheap and efficient catalyst for slurry-bed hydrogenation, developing a co-processing technology for coal tar with coal or residue oil and utilizing efficiently utilization hydrogenation products.
杨涛, 戴鑫, 杨天华, 李伟, 黄传峰, 韩智发, 石欣, 王蒙. 煤焦油重组分加氢技术现状及研究趋势探讨[J]. 现代化工, 2018, 38(9): 60-63,65.
YANG Tao, DAI Xin, YANG Tian-hua, LI Wei, HUANG Chuan-feng, HAN Zhi-fa, SHI Xin, WANG Meng. Status and research trends of hydrogenation technology for coal tar heavy fractions. Modern Chemical Industry, 2018, 38(9): 60-63,65.
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