炼油技术与工程 ›› 2021, Vol. 51 ›› Issue (4): 65-68.

• 能量利用 • 上一篇    下一篇

轻汽油醚化装置降低能耗的措施

冯连坤1, 陈晓华2, 任文林1   

  1. 1.中石油云南石化有限公司,云南省昆明市 650399;
    2.中国石油兰州石化分公司化肥厂,甘肃省兰州市 730060
  • 收稿日期:2020-12-08 出版日期:2021-04-15 发布日期:2021-07-16
  • 作者简介:冯连坤,高级工程师,2004年毕业于石油大学(华东),从事加氢精制生产工作。联系电话:15687118902,E-mail:fengliankun@petrochina.com.cn。

Measures for reducing energy consumption of light gasoline etherification unit

Feng Liankun1, Chen Xiaohua2, Ren wenlin1   

  1. 1. PetroChina Yunnan Petrochemical Company, Kunming, Yunnan 650399;
    2. PetroChina Lanzhou Petrochemical Company, Lanzhou, Gansu 730060
  • Received:2020-12-08 Online:2021-04-15 Published:2021-07-16

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摘要： 介绍了中石油云南石化有限公司轻汽油醚化装置的节能优化操作。优化后醇烯比从1.4降到1.35,分馏塔压力从0.25 MPa降到0.24 MPa,塔底操作温度从119 ℃降到117 ℃,塔底再沸器低压蒸汽耗量从8.12 t/h降到5.72 t/h;甲醇回收塔塔压从0.17 MPa降到0.08 MPa,回流量从18.5 t/h降到9.0 t/h,蒸汽消耗量从12.3 t/h降到5.2 t/h;加工每吨原料消耗蒸汽从0.31 t降到0.17 t,装置能耗从1 015.9 MJ/t降到621.0 MJ/t,实现了节能降耗的目的。

关键词: 轻汽油醚化装置, 能耗, 节能, 蒸汽

Abstract: The energy reduction optimization operation of light gasoline etherification unit of PetroChina Yunnan Petrochemical Company is introduced. After optimization, the molar ratio of methanol to active olefins reduces from 1.40 to 1.35, the pressure of fractionator reduces from 0.25 MPa to 0.24 MPa, the operating temperature at the bottom of tower reduces from 119 ℃ to 117 ℃, and the low pressure steam consumption of reboiler at the bottom of the tower reduces from 8.12 t/h to 5.72 t/h. The tower pressure of methanol recovery tower reduces from 0.17 MPa to 0.08 MPa, the tower reflux reduces from 18.5 t/h to 9.0 t/h, and the steam consumption reduces from 12.3 t/h to 5.2 t/h. The steam consumption per ton of feedstock reduces from 0.31 t to 0.17 t, and the energy consumption of the unit reduces from 1,015.9 MJ/t to 621.0 MJ/t. The purpose of energy conservation and consumption reduction is realized.

Key words: light gasoline etherification unit, energy consumption, energy conservation, steam