沸腾床与固定床组合工艺加氢处理煤焦油试验研究_孟兆会

㊀第43卷第3期

煤炭科学技术

Vol．43㊀No．3㊀㊀2015年

3月

Coal Science and Technology

Mar.㊀

2015㊀

沸腾床与固定床组合工艺加氢处理煤焦油试验研究

孟兆会,方向晨,杨㊀涛,姚春雷,张忠清

(中国石化抚顺石油化工研究院,辽宁抚顺㊀113001)

摘㊀要:为探索适宜煤焦油加工处理的组合工艺,提出沸腾床加氢预处理-固定床加氢裂化组合工艺处理煤焦油的思路,并在STRONG 沸腾床加氢试验装置上进行试验㊂试验结果表明:沸腾床加氢预处理可大幅降低煤焦油原料中的S ㊁N ㊁残炭及金属等含量,降低不饱和分含量;生成油能够满足直接进固定床加氢处理要求;经固定床加氢处理后生成油性质得到改善:轻石脑油S ㊁N 含量均小于1．0μg /g ,芳烃潜含量为56%,可以作为重整原料;柴油馏分密度0．8566g /cm 3,S 含量50μg /g 以下,十六烷值高达53,可以作柴油调和组分或生产合格柴油;尾油以蜡油为主,S ㊁N 含量分别为59㊁21μg /g ,残炭含量为0．15%,可作加氢裂化原料㊂

关键词:煤焦油;沸腾床;固定床;组合工艺;加氢处理;清洁燃料

中图分类号:TD989㊀㊀㊀文献标志码:A㊀㊀㊀文章编号:0253-2336(2015)03-0134-04

Experiment study on fluidized bed and fixed bed combined technique

hydrogenation to process coal tar

MENG Zhao -hui,FANG Xiang -chen,YANG Tao,YAO Chun -lei,ZHANG Zhong -qing

(SINOPEC Fushun Research Institute of Petroleum and Petrochemicals ,Fushun ㊀113001,China )

Abstract :In order to discover a combined technique suitable to process the coal tar,an idea was provided on a fluidized bed hydrogenation pre -processing -fixed bed hydrocracking combined technique to process the coal tar and an experiment was conducted on a STRONG fluid-ized bed hydrocracking test device.The experiment results showed that the fluidized bed hydrogenation pre -processing could highly re-duce S,N,carbon residue,metal and other contents in the coal tar raw material and could reduce the unsaturated content.The generated oil could meet the requirements to directly in a foxed bed hydrogenation processing.After the fixed bed hydrogenation processing,the genera-ted oil quality was improved,a naphtha S and N content were all less than 1.0μg /g and aromatic latent was 56%and could be the refined raw material.Distillation density of 0.8566g /cm 3,S content less than 50μg /g,hexadecane value over 53would be a diesel harmonious

components and could produce a qualified diesel.The tail oil would be wax oil mainly,the S and N content would be 59and 21μg /g indi-vidually,the carbon residue content was 0.15%and could be hydrogenation raw material.

Key words :coal tar;fluidized bed;fixed bed;combined technique;hydrogenation processing;clean fuel

收稿日期:2014-09-04;责任编辑:赵㊀瑞㊀㊀DOI :10.13199/ki.cst.2015.03.031基金项目:国家高技术研究发展计划(863计划)资助项目(2011AA05A203)

作者简介:孟兆会(1984 ),男,山东泰安人,硕士㊂通信作者:方向晨,教授级高级工程师,现任中国石化抚顺石油化工研究院院长㊂E -mail :fangxiangchen.fshy@

引用格式:孟兆会,方向晨,杨㊀涛,等.沸腾床与固定床组合工艺加氢处理煤焦油试验研究[J].煤炭科学技术,2015,43(3):134-137,81.

MENG Zhao -hui,FANG Xiang -chen,YANG Tao,et al .Experiment study on fluidized bed and fixed bed combined technique hydrogenation to process coal tar[J].Coal Science and Technology,2015,43(3):134-137,81.0㊀引㊀㊀言

㊀㊀煤焦油是煤干馏㊁气化或焦化过程中得到的液体产物,常温下煤焦油是一种黑色黏稠液体,密度较高,含有1%~3%机械杂质和水分,机械杂质主要

为煤粉㊁焦油碱㊁焦油酸及在加工过程中混入的一些固体颗粒物等[1]㊂长期以来,国内煤焦油主要用于生产化工原料,如分离得到酚㊁萘㊁蒽㊁菲等化工原料,重组分用于生产沥青或炭黑[2-3]㊂由于加工技术落后,煤焦油利用率低,加工过程能耗高且环境污

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