煤焦油重质芳烃选择性加氢制单环芳烃

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中文摘要：采用固定床反应器对煤焦油中重质芳烃进行选择性加氢,研究反应温度和反应压力对重质芳烃饱和率和单环芳烃选择性的影响.通过制备的4种催化剂进行对比,获得单环芳烃选择性较高的Ni-Mo-P体系催化剂.煤焦油馏分原料的加氢反应结果显示,在反应温度360℃、反应压力6 MPa、空速0.5 h-1和氢油比800:1条件下,多环芳烃饱和率为84.2％,单环芳烃选择性为60.4％.通过煤焦油馏分与脱酚余油原料的加氢实验结果对比,脱酚余油中的重质芳烃能获得更高的转化率及单环芳烃选择性.

外文标题：Selective hydrogenation of heavy aromatics in coal tar to produce monocyclic aromatics

外文摘要：The selective hydrogenation of heavy aromatics in coal tar was carried out in a fixed-bed reactor,and the effects of reaction temperature and pressure on the saturation degree of heavy aromatics and the selectivity of monocyclic aromatics were studied. By comparing the four catalysts prepared, the Ni-Mo-P system catalyst with higher selectivity for monocyclic aromatic hydrocarbons was selected. The results of hydrogenation reaction of coal tar distillate shown that the saturation degree of polycyclic aromatic hydrocarbons ( PAHs) was 84. 2％ and the selectivity of monocyclic aromatic hydrocarbons was 60. 4％ when the temperature was 360 ℃, the pressure was 6 MPa, the liquid hourly space velocity (LHSV) was 0. 5 h-1 and the hydrogen-oil ratio was 800:1. Compared with the distillate oil,the heavy aromatics in the dephenolized oil of coal tar obtained higher conversion and selectivity of monocyclic aromatics after selective hydrogenation.

外文关键词：

fine chemical engineeringcoal tarheavy aromaticsselective hydrogenationselectivity of monocyclic aromatic hydrocarbons

作者：

尚建选、余春、崔楼伟、潘柳依、王红艳、李冬

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作者单位：

陕西煤业化工集团有限责任公司,陕西西安710100

西安航天源动力工程有限公司,陕西西安710100

西北化工研究院有限公司,陕西西安710061

西北大学化工学院,陕西西安710069

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关键词：

精细化学工程煤焦油重质芳烃选择性加氢单环芳烃选择性

基金：

国家自然科学基金陕西省自然科学基础研究计划陕西省创新能力支撑计划陕煤-秦岭基础科学研究行动计划

项目编号：

219782372021JLM-1920020TD-028SMY.TY20220130

出版年：

2024

DOI：

10.3969/j.issn.1008-1143.2024.03.010

工业催化

西北化工研究院

工业催化

CSTPCD

影响因子：0.504

ISSN：1008-1143

年,卷(期)：2024.32(3)

参考文献量15