高温煤焦油加氢生产燃料油的工艺调整.pdf

2010 年 第6 期 广 东 化 工 第37 卷 总第206 期 · 55 · 高温煤焦油加氢生产燃料油的工艺调整 李毓良，杨国祥 (七台河宝泰隆煤化工股份有限公司，黑龙江 七台河 154600) [摘 要]高温煤焦油加氢生产燃料油的条件苛刻，工艺复杂，操作难度大。文章介绍了黑龙江省七台河宝泰隆煤化工有限责任公司通过调整 生产工艺路线，增加部分未转化油入加氢精制，降低加氢精制的操作难度，提高加氢裂化的稳定性，达到降低加氢精制和加氢裂化在生产工程 中相互制约和相互影响的目的，使整套装置的安全性和稳定性得到提高。 [关键词]加氢；未转化油；工艺 [中图分类号]TQ [文献标识码]A [文章编号]1007-1865(2010)06-0055-02 Process Adjustment of Producing Fuel by Hydrogenation on High Temperature Distillated Coal tar Li Yuliang, Yang Guoxiang (Bao Tai Long Coal Chemical Engineering Co., Ltd., Qitaihe 154600, China) Abstract: It needs much harsh conditions to produce fuel oil by hydrogenating on high-temperature coal tar oil because of its complexity process and difficult operation. The article presented an adjusting production technology line by adding part of unconverted oil into hydrofining reactor which had been practiced in Bao Tai Long Coal Chemical Engineering Co., Ltd. located in Qitaihe city of Heilongjiang province. The adjusting step can decrease the difficulty of hydrofining operation, and improve the stability of hydrocracking process, so that it can reduce the effect of mutual restriction and interaction between hydrofining process and hydrocracking process, the security and stability of the entire device was improved greatly. Keywords: hydrogenation ；unconverted oil ；process scheme 中国2009 年焦炭产量为3.45 亿t 左右，同时副产煤焦油 就决定了整个装置的安全运行状态，也正由于反应系统生产特 1100 万t 左右，其中绝大部分为高温煤焦油。目前，对高温煤 点为高温、高压、临氢、易燃、易爆、有毒介质的操作环境， 焦油的加工有以下三种方式：一是作为煤焦油深加工的原料， 而且表现为强放热反应，其强烈的放热效应有时会使反应变得 从中提取苯、酚、萘等物质。但由于煤焦油生产的特点，决定 不可控制，操作条件苛刻。因此在进行煤焦油加氢生产时，充 了煤焦油加工的规模小，不能形成