煤基石脑油半再生催化重整制芳烃的工艺

doi:10.16085/j.issn.1000-6613.2017-1034

化工进展 ›› 2018, Vol. 37 ›› Issue (03): 947-955.DOI: 10.16085/j.issn.1000-6613.2017-1034

煤基石脑油半再生催化重整制芳烃的工艺

朱永红^1,2, 淡勇^1,2, 王莉莎^1,2, 李冬^1,2, 李稳宏^1,2

1 西北大学化工学院, 陕西西安 710069;
2 陕西省资源化工应用工程技术研究中心, 陕西西安 710069

收稿日期:2017-05-31 修回日期:2017-09-07 出版日期:2018-03-05 发布日期:2018-03-05
通讯作者: 淡勇,教授,从事化学工程与工艺以及高压容器方面的研究。
作者简介:朱永红(1990-),男,硕士。E-mail:13227771168@163.com。
基金资助:
国家自然科学基金（21646009）、陕西省科技统筹创新工程计划（2014KTCL01-09）、陕西省教育厅产业化培育项目（15JF031）及陕西省青年科技新星项目（2016KJXX-32）。

Process for aromatic type semi regeneration catalytic reforming of coal derived naphtha

ZHU Yonghong^1,2, DAN Yong^1,2, WANG Lisha^1,2, LI Dong^1,2, LI Wenhong^1,2

1 School of Chemical Engineering, Northwest University, Xi'an 710069, Shaanxi, China;
2 Shaanxi Research Center of Chemical Engineering Technology for Resource Utilization, Xi'an 710069, Shaanxi, China

Received:2017-05-31 Revised:2017-09-07 Online:2018-03-05 Published:2018-03-05

摘要/Abstract

摘要： 采用工业铂铼双金属重整催化剂Pt-Re/γ-Al₂O₃开展了煤基石脑油半再生固定床催化重整单因素实验，并采用响应面法对工艺参数进行了优化与分析，最后对优化工艺条件下实验产物进行了分析。结果表明：加权平均入口温度（WAIT）、压力（P）、液时空速（LHSV）等操作条件对煤基石脑油芳烃型半再生重整产品质量、芳烃收率和C₅₊液体收率有很大的影响。煤基石脑油重整合适工艺参数区间：WAIT（500~520℃）、P（1.2~1.6MPa）和LHSV（2.0~3.0h^-1）；最佳工艺条件：WAIT为516℃，P为1.4MPa，LHSV为2.3h^-1。优化工艺条件下芳烃收率达到了79.81%，响应面实验操作条件区间内，WAIT、P和LHSV对芳烃收率影响大小顺序为：P > LHSV > WAIT。相比于石油基石脑油重整，煤基石脑油重整不仅纯氢产率和氢气纯度更高，还可获得更高的苯-甲苯-二甲苯（BTX）产率，其中苯收率：甲苯收率：二甲苯收率近似为1：3：2。

关键词: 煤基石脑油, 催化重整, 芳烃, 响应面分析法

Abstract: The experimental studies of single factor on the semi regenerative catalytic reforming of coal derived naphtha has been made in an adiabatic fixed bed device using new industrial platinum rhenium reforming catalyst(Pt-Re/γ-Al₂O₃). The process parameters were optimized and analyzed by response surface methodology. Finally,experimental product analyses at optimized process conditions were made. The results show that WAIT(weighted average inlet temperature),P(reaction pressure),and LHSV (liquid hourly space velocity) had a strong influence on the product quality,aromatic yield,and C₅₊ liquid yield of the aromatic type semi regeneration catalytic reforming of coal derived naphtha. The appropriate process parameters intervals were:WAIT 500-520℃,P 1.2-1.6MPa,LHSV 2.0-3.0h^-1. The optimal process conditions were determined as follows:WAIT at 516℃,P at 1.4MPa,LHSV at 2.3h^-1. Under the optimized process conditions,the yield of aromatics reached 79.81%. In the operating condition intervals of response surface experiments,the order of magnitude of WAIT,P and LHSV on the yield of aromatics was:P > LHSV > WAIT. Compared to petroleum derived naphtha reforming,coal derived naphtha reforming can obtain higher pure hydrogen yield,hydrogen purity, and BTX (benzene-toluene-xylene) yield. The ratios of benzene yield to toluene yield and to xylene yield are approximately 1/3 and 1/2,respectively.

Key words: coal derived naphtha, catalytic reforming, aromatic, response surface methodology

中图分类号:

TE622.1

朱永红, 淡勇, 王莉莎, 李冬, 李稳宏. 煤基石脑油半再生催化重整制芳烃的工艺[J]. 化工进展, 2018, 37(03): 947-955.

ZHU Yonghong, DAN Yong, WANG Lisha, LI Dong, LI Wenhong. Process for aromatic type semi regeneration catalytic reforming of coal derived naphtha[J]. Chemical Industry and Engineering Progress, 2018, 37(03): 947-955.

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煤基石脑油半再生催化重整制芳烃的工艺

Process for aromatic type semi regeneration catalytic reforming of coal derived naphtha

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