脱乙烷塔系统存在的问题及优化

About journal

Ethylene Industry ›› 2020, Vol. 32 ›› Issue (3): 13-15.

• INDUSTRIAL TECHNOLOGY • Previous Articles Next Articles

Problems in Deethanizer System and the Optimization

Huang Dengsheng, Shi Changhong, Ma Jun,Jiang Xiaoyong

PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang, P.C.833699

Received:2019-12-19 Revised:2020-07-28 Online:2020-09-25 Published:2020-09-29

Abstract

Abstract:

In view of the high propylene content of overhead stream and the over high ethane in tower bottoms of deethanizer in the No.2 ethylene plant in Dushanzi, this paper analyzes the design data and operation data of deethanizer feed, tower bottom product and front-end predistillation system, and concludes that the high temperature of feed in the No.2 predistillation tower is the cause of the high overhead temperature and high propylene loss of deethanizer. Through technical transformation, by-pass regulation is installed, the quantity and temperature of the feed to deethanizer are reduced, the distillation effect of deethanizer is improved, and the loss of overhead C₃ and the loss of C₂ in tower bottoms are reduced.

Key words: ethylene plant, predistillation tower, deethanizer, propylene loss, optimization

Huang Dengsheng, Shi Changhong, Ma Jun, Jiang XIaoyong. Problems in Deethanizer System and the Optimization[J].Ethylene Industry, 2020, 32(3): 13-15.

[1]	. [J]. Ethylene Industry, 2015, 27(1): 38 -42 .
[2]	. [J]. Ethylene Industry, 2015, 27(1): 46 .
[3]	. [J]. Ethylene Industry, 2015, 27(1): 61 -64 .
[4]	. [J]. Ethylene Industry, 2015, 27(3): 51 -55 .
[5]	. [J]. Ethylene Industry, 2016, 28(1): 12 -14 .
[6]	. [J]. Ethylene Industry, 2016, 28(1): 39 -42 .
[7]	. [J]. Ethylene Industry, 2016, 28(2): 23 -27 .
[8]	. [J]. Ethylene Industry, 2017, 29(4): 32 -35 .
[9]	. [J]. Ethylene Industry, 2018, 30(1): 19 -22 .
[10]	. [J]. Ethylene Industry, 2018, 30(2): 20 -23 .

[1]	Qin Hailiang, Ma Shilin, Ji Hongfeng. Optimization of Startup and Shutdown of Propylene Refrigeration System [J]. Ethylene Industry, 2020, 32(4): 28-30.
[2]	Wang Jingzhao, Tang Jiaxiang. Cause Analysis and Countermeasures for High CO₂ Content in Ethylene Plant [J]. Ethylene Industry, 2020, 32(4): 43-47.
[3]	Fan Shiping. Optimization of Emission Reduction Scheme for Startup and Shutdown of Ethylene Plant [J]. Ethylene Industry, 2020, 32(3): 7-12.
[4]	Li Zhiyuan, Ma Jun, Shang Yongfu, Ding Lu, Ma Lifan. Analysis on Optimization of Ethylene Plant for Energy Saving and Emission Reduction [J]. Ethylene Industry, 2020, 32(3): 16-18.
[5]	Jiang Pengfei, Su Weiyi, Luo Lingli, Gu Yang, Hong Kun. Problems in Long-Term Operation of Cracking Furnace and the Optimization Measures [J]. Ethylene Industry, 2020, 32(3): 22-28.
[6]	Li Delong. Research and Implementation of Energy Saving and Consumption Reduction Measures for Cracking Furnace in Ethylene Plant [J]. Ethylene Industry, 2020, 32(3): 46-49.
[7]	Zhao Guicai. Measures for Improving the Reliability of Compressor Oil Circuit System [J]. Ethylene Industry, 2020, 32(3): 50-53.
[8]	Bai Yuchen. Analysis and Discussion on Flare Load of Ethylene Plant [J]. Ethylene Industry, 2019, 31(4): 13-16.
[9]	Su Weiyi, Pan Yanjun, Zeng Feipeng, Liu Zehan, Hong Kun. [J]. Ethylene Industry, 2019, 31(4): 17-21.
[10]	Chen Yakuan. [J]. Ethylene Industry, 2019, 31(4): 30-33.
[11]	Hong Kun, Zeng Feipeng, Zhang Le, Jiang Pengfei, Liu Po. Optimization of Nitrogen Pre-cooling and Low-emission Start-up and Shutdown Process for Ethylene Plant [J]. Ethylene Industry, 2019, 31(4): 34-39.
[12]	Zhang Lintao, Liu Zhengming, Shi Yunwei, Peng Zhirong. Operation and Optimization of Tail Gas Distillation Column under High Load [J]. Ethylene Industry, 2019, 31(3): 18-21.
[13]	Xu Hongwei, Zuo Yongguang, Zhou Jian, Zhang Daojun, Xue Xinchao. Startup Optimization of Pyrolysis Gasoline Hydrogenation Unit Using High Sulfur Naphtha [J]. Ethylene Industry, 2019, 31(3): 22-25.
[14]	Cheng Liang, Fang Qunwe. [J]. Ethylene Industry, 2019, 31(2): 59-64.
[15]	Qin Hailiang, Huang Penghong. Simulation and Optimization of Propylene Refrigeration System [J]. Ethylene Industry, 2019, 31(1): 19-22.

Problems in Deethanizer System and the Optimization

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 10