共沸精馏脱高温费托合成C8馏分中的含氧化合物

doi:10.16085/j.issn.1000-6613.2017.01.007

化工进展 ›› 2017, Vol. 36 ›› Issue (01): 53-58.DOI: 10.16085/j.issn.1000-6613.2017.01.007

共沸精馏脱高温费托合成C₈馏分中的含氧化合物

杨正伟, 孙启文

上海兖矿能源科技研发有限公司, 煤液化及煤化工国家重点实验室, 上海 201203

收稿日期:2016-07-04 修回日期:2016-09-13 出版日期:2017-01-05 发布日期:2017-01-05
通讯作者: 孙启文,研究员,主要从事煤化工及煤液化方面的研究。E-mail:yetech@ye-tech.com。
作者简介:杨正伟(1980-),男,硕士,工程师,主要从事化工分离方面的研究。
基金资助:
国家高技术研究发展计划项目（2011AA05A204）。

Azeotropic distillation to remove the oxygenates from high-temperature Fisher-Tropsch C₈-cut

YANG Zhengwei, SUN Qiwen

Yankuang Energy R & D Co., Ltd., State Key Laboratory of Coal Liquefaction and Coal Chemial Technology, Shanghai 201203, China

Received:2016-07-04 Revised:2016-09-13 Online:2017-01-05 Published:2017-01-05

摘要/Abstract

摘要： 在气相色谱-质谱联用（GC-MS）分析出高温费托合成C₈馏分所有组分的基础上，以乙醇水溶液为溶剂，采用共沸精馏法对高温费托合成C₈馏分脱含氧化合物。采用PRO-Ⅱ选择NRTL热力学方法对分离过程进行模拟，建立了共沸精馏分离工艺流程，并考察了共沸剂水含量、理论塔板数、进料位置等工艺条件对共沸精馏塔分离结果的影响，得到了最优操作条件，然后采用实验室小型精馏塔对高温费托合成C₈馏分进行实验验证。结果表明，塔顶采出液中未检测出含氧化合物，塔釜采出液中1-辛烯含量小于0.1%（质量分数），模拟最优条件为：共沸剂水含量为14%（质量分数），溶剂比为1.2：1，理论塔板数30块、进料位置为第17块。实验与模拟值吻合良好。

关键词: 费托合成, 共沸精馏, 含氧化合物, C₈馏分, 模拟

Abstract: After the components of high-temperature Fisher-Tropsch C₈-cut was determined by chromatography-mass spectrum,the azeotropic distillation was carried out to remove the oxygenates from high-temperature Fisher-Tropsch C₈-cut. PRO-Ⅱ was applied to simulate the distillation process by NRTL thermodynamic method. The separation process of the azeotropic distillation with ethanol/water solution as solvent was established. The effect of water content, theoretical stage number and feed stage number on the separation effect was investigated so as to get the best operational parameter for azeotropic distillation tower. Then,a bench-scale distillation column was used to verify the simulation for value by high-temperature Fisher-Tropsch C₈-cut. The result showed that the oxygenates at the top was not detected and the mass fraction of the 1-octene at the bottom is less than 0.1%. The best operational parameters were as follows:water content in solvent was about 14% with the theoretical stage number of 30,the feed stage number of 17 and the solvent ratio of 1.2:1. The experimental data matched well with those of the simulation.

Key words: Fischer-Tropsch synthesis, azeotropic distillation, oxygenates, C₈-cut, simulation

中图分类号:

TQ028.3

杨正伟, 孙启文. 共沸精馏脱高温费托合成C₈馏分中的含氧化合物[J]. 化工进展, 2017, 36(01): 53-58.

YANG Zhengwei, SUN Qiwen. Azeotropic distillation to remove the oxygenates from high-temperature Fisher-Tropsch C₈-cut[J]. Chemical Industry and Engineering Progree, 2017, 36(01): 53-58.

参考文献

[1] 孙启文. 煤炭间接液化[M]. 北京:化学工业出版社,2012:345-349. SUN Q W. Indirect coal liquefaction[M]. Beijing:Chemimcal Industry Press,2012:345-349.
[2] 刘晓彤,李庆勋,刘克峰,等. 费托合成产品升级的发展现状[J].现代化工,2014,34(12):1-4. LIU X T,LI Q X,LIU K F,et al. Current status of product upgrading for Fischer-Tropsch synthesis[J]. Modern Chemical Industry,2014,34(12):1-4.
[3] 周立进,王磊,黄慧慧,等. 费托合成工艺研究进展[J]. 石油化工,2012,41(12):1429-1436. ZHOU L J,WANG L,HUANG H H,et al. Research progresses in Fischer-Tropsch synthesis process[J]. Petrochemial Technology,2012,41(12):1429-1436.
[4] 许毅. 煤间接液化产品结构的发展方向[J]. 大氮肥,2015,28(3):145-150. XU Y. Development of indirect coal liquefaction:expanding product structure[J]. Large Scale Nitrogenous Fertilizer Industry,2015,28(3):145-150.
[5] DE KLERK A,FURIMSKY E. Catalysis in the refining of Fischer-Tropsch syncrude[M]. Cambridge:The Royal Society of Chemistry,2010:25-30.
[6] 任杰,相宏伟,曹立仁,等. 费-托合成油品的加氢处理方法:101177626 A[P]. 2008-05-14. REN J,XIANG H W,CAO L R,et al. Hydrogenation processing method for F-T synthetic oil:101177626 A[P]. 2008-05-14.
[7] 任杰,张怀科,吕恩静,等.一种费托合成油品加氢脱氧催化剂、其制备方法和应用:102794181A[P]. 2012-11-28. REN J,ZHANG H K,LV E J,et al. Hydrodeoxygenation catalyst for Fischer-Tropsch synthesis oil and preparation method and application of hydrodeoxygenation catalyst:102794181A[P]. 2012-11-28.
[8] 吴昊,胡志海,聂红,等. 一种费托合成油加氢提质方法:102911722A[P]. 2013-02-06. WU H,HU Z H,NIE H,et al. Hydrogenation quality-improving method for Fischer-Tropsch synthetic oil:102911722A[P]. 2013-02-06.
[9] 董广达,王玉军,张卫东,等. 棉籽油加氢脱氧制备第二代生物柴油[J]. 石油化工,2013,42(7):737-742. DONG G D,WANG Y J,ZHANG W D,et al. Preparation of the second generation biodiesel via hydrodeoxygenation of cottonseed oil[J]. Petrochemial Technology,2013,42(7):737-742.
[10] MASHAPA T N,DE KLERK A. Solid phosphoric acid catalysed conversion oxygenate containing Fischer-Tropsch naphtha[J]. Appl. Catal. A,2007,332(2):200-208.
[11] 朱永红,王娜,淡勇,等. 中低温煤焦油加氢脱氧工艺条件的优化[J]. 石油化工,2015,44(3):345-350. ZHU Y H,WANG N,DAN Y,et al. Optimization of hydrodeoxygenation process for low-temperature coal tar[J]. Petrochemial Technology,2015,44(3):345-350.
[12] 德韦J P,詹森W,雅各布森P. 从烃流中萃取含氧物:1764619[P]. 2006-04-26. DE WET J P,JANSEN W,JACOBSON P. Extraction of oxygenates from a hydrocarbon stream:1764619[P]. 2006-04-26.
[13] 德·韦特·约翰·彼得,塑尔茨·雅各布·约翰尼斯. 烃物流中氧化物的分离:1468292A[P]. 2004-01-14. DE WET J P; SCHOLTZ J J. Separation of oxygenates from a hydrocarbon stream:1468292A[P]. 2004-01-14.
[14] DE WET J P,SCHOLTZ J J. Separation of oxygenates from a hydrocarbon stream:US6887370B2[P]. 2005-03-03.
[15] 杨正伟,孙启文,张宗森. 萃取精馏脱高温费托合成C6馏分中的含氧化合物[J]. 石油化工,2016,45(4):402-407. YANG Z W,SUN Q W,ZHANG Z S. Removing oxygenates from C6 fraction in high-temperature Fisher-Tropsch synthesis products by extractive distillation[J]. Petrochemial Technology,2016,45(4):402-407.
[16] 董立华,郝栩,曹立仁,等. 费托合成油品脱酸和含氧化合物过程模拟[J]. 煤炭转化,2009,32(2):14-17. DONG L H,HAO Y,CAO L R,et al. Process simulation of removing acids and oxygenates from oil of Fischer-Tropsch synthesis[J]. Coal Conversion,2009,32(2):14-17.
[17] DIAMOND D,HAHN T,BECKER H,et al. Improving the understanding of a novel complex azeotropic distillation process using a simplified graphical model and simulation[J]. Chemical Engineering and Processing,2004,43:483-493.

共沸精馏脱高温费托合成C₈馏分中的含氧化合物

Azeotropic distillation to remove the oxygenates from high-temperature Fisher-Tropsch C₈-cut

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