Title:
NOVEL PROCESS OF ABSORPTION AND STABILIZATION UNIT AND COMPREHENSIVE UTILIZATION METHOD OF PRODUCTS THEREFROM
Document Type and Number:
WIPO Patent Application WO/2023/060906
Kind Code:
A1
Abstract:
The present invention relates to a novel process of an absorption and stabilization unit, comprising operation steps of: S1, primary compression of rich gas, S2, secondary compression of rich gas, S3, dry gas absorption, S4, gasoline stabilization, and so on. After rich gas from a catalytic fractionation unit undergoes operations such as primary compression, rectification using a de-heavy fractionator, and secondary compression, the gas phase mainly composed of C3 from the top of the de-heavy fractionator and naphtha from the catalytic fractionation unit are absorbed in an absorption tower, and dry gas of unabsorbed components is discharged from the top of the absorption tower; rich absorption oil from the bottom of the absorption tower and the liquid phase mainly composed of C4 from the bottom of the de-heavy fractionator enter an stabilization tower to perform stable operation. The novel process of the absorption and stabilization unit of the present invention can obviously reduce the energy consumed by the absorption and stabilization unit by means of step-by-step compression, and facilitates further utilization of products from the absorption and stabilization unit. The present invention also relates to a method for comprehensive utilization of products from the absorption and stabilization unit, for maximizing the conversion of effective components in stabilized gasoline, liquefied gas, and dry gas after the novel absorption and stabilization process into high value-added chemical products such as propylene.
Inventors:
XIN BENEN (CN)
YE ZONGJUN (CN)
HONG WEI (CN)
YE ZONGJUN (CN)
HONG WEI (CN)
Application Number:
PCT/CN2022/096161
Publication Date:
April 20, 2023
Filing Date:
May 31, 2022
Export Citation:
Assignee:
ZHEJIANG COMY ENVIRONMENT TECH CO LTD (CN)
International Classes:
C10G70/04; C10G70/00
Foreign References:
| CN113354501A | 2021-09-07 | |||
| CN113845939A | 2021-12-28 | |||
| CN104177214A | 2014-12-03 | |||
| CN105647583A | 2016-06-08 | |||
| CN102382680A | 2012-03-21 | |||
| CN112707787A | 2021-04-27 | |||
| CN112707786A | 2021-04-27 | |||
| JP2007222847A | 2007-09-06 |
Attorney, Agent or Firm:
SHANGHAI BILIPAT INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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