费-托合成蜡催化加氢精制研究

石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (10): 25-30.

费-托合成蜡催化加氢精制研究

刘东阳¹,石薇薇¹,曹祖宾¹,乔海燕¹,曹传洋²,吕娜²

1. 辽宁石油化工大学化学化工与环境学部
2. 中国石油抚顺石化公司石油二厂

收稿日期:2018-12-26 修回日期:2019-02-26 出版日期:2019-10-12 发布日期:2019-10-24
通讯作者: 曹祖宾 E-mail:caozuobin974@163.com
基金资助:
2017年辽宁省教育厅基本科研项目

STUDY OF HYDROTREATING OF FISCHER-TROPSCH WAX

Liu Dongyang,Shi Weiwei,Cao Zubin,Qiao Haiyan,Cao Chuanyang,Lv Na

Received:2018-12-26 Revised:2019-02-26 Online:2019-10-12 Published:2019-10-24
Contact: Cao Zubin E-mail:caozuobin974@163.com
Supported by:

摘要/Abstract

摘要： 以未精制的费-托合成蜡为原料，将其减压蒸馏为轻质蜡油和重质蜡油馏分，采用自制W-Mo-Ni型催化剂对两段蜡油馏分分别进行加氢精制，使其中的含氧化合物氢解、烯烃加氢饱和，制备低含油量、高滴熔点的费-托合成蜡。考察了反应压力、反应温度对精制蜡含油量的影响，并采用高温气相色谱、傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）等对蜡样品的碳数分布、分子结构、晶体结构进行分析表征。结果表明：在反应压力为6.0 MPa、轻质蜡油反应温度为260 ℃、重质蜡油反应温度为320 ℃的条件下，两段费-托合成蜡馏分的脱氧率分别为95.86%和94.90%，所得两种精制蜡的滴熔点分别为72 ℃和112 ℃，含油量（w）分别为0.76 %和0.09%，碳数分布分别为19～29和26～120；FT-IR分析结果表明加氢后精制蜡主要由长链正构烷烃组成。

关键词: 费-托合成蜡, 催化剂, 加氢精制, 精制蜡

Abstract: Fischer-Tropsch wax was divided into light wax oil and heavy wax oil fractions under vacuum distillation. The self-made W-Mo-Ni catalyst was used to hydrogenate the oxygenated compounds and the olefins in samples to prepare the Fischer-Tropsch waxes with low oil content and high drop melting point. The effects of reaction temperature and pressure on the oil content of refined wax were studied. The carbon number，molecular structure and crystal structure of samples were analyzed by high temperature gas chromatography，Fourier transform infrared spectroscopy and XRD. The results showed that under the hydrotreating reactions at 6.0 MPa，260 ℃ for the light wax oil，and at 320 ℃ for the heavy wax oil，the oxygen removals of the two Fischer-Tropsch wax fractions were 95.86 % and 94.90 %， the melting points of 72 ℃ and 112 ℃，oil content of 0.76 % and 0.09 %, and carbon number distributions of 19-29 and 26-120，respectively.The FT-IR analysis indicated that the hydrotreated wax mainly composed of long chain normal paraffins.

Key words: Fischer-Tropsch wax, catalyst, hydrotreating, refined wax

中图分类号:

刘东阳石薇薇曹祖宾乔海燕曹传洋吕娜. 费-托合成蜡催化加氢精制研究[J]. 石油炼制与化工, 2019, 50(10): 25-30.

Liu Dongyang Shi Weiwei Cao Zubin Qiao Haiyan Cao Chuanyang Lv Na. STUDY OF HYDROTREATING OF FISCHER-TROPSCH WAX[J]. Petroleum Processing and Petrochemicals, 2019, 50(10): 25-30.

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