Title:
PROPYLENE-PROPANE SEPARATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/065443
Kind Code:
A1
Abstract:
A propylene-propane separation system, comprising a propane-propylene rectifying tower (A), a tower kettle material buffer tank (V1), a tower kettle-tower top material heat exchanger (E1), a heat pump compressor (C1), and a compressor inlet buffer tank (V2); a tower bottom material line (1) of the propane-propylene rectifying tower (A) is connected to an inlet of the tower kettle material buffer tank (V1); a gas phase line (2) of the tower kettle material buffer tank (V1) is connected to an inlet of the compressor inlet buffer tank (V2); a liquid phase outlet line (3) of the tower kettle material buffer tank (V1) is connected to a cold flow inlet of the tower kettle-tower top material heat exchanger (E1); a cold flow outlet line (4) of the tower kettle-tower top material heat exchanger (E1) is connected to the tower kettle material buffer tank (V1); a tower top gas phase line (5) of the propane-propylene rectifying tower (A) is connected to a heat flow inlet of the tower kettle-tower top material heat exchanger (E1); an outlet gas phase line (7) of the compressor inlet buffer tank (V2) is connected to an inlet of the heat pump compressor (C1); and an outlet gas phase line (8) of the heat pump compressor (C1) is connected into a kettle of a propylene-propane tower. The system can effectively recycle heat carried by tower top materials, thereby reducing the separation energy consumption of the propane-propylene rectifying tower (A).
Inventors:
CHEN XIAOMIN (CN)
YUAN WEI (CN)
WANG RUI (CN)
LIU BO (CN)
LI XIAOWANG (CN)
HU XIANNIAN (CN)
YUAN WEI (CN)
WANG RUI (CN)
LIU BO (CN)
LI XIAOWANG (CN)
HU XIANNIAN (CN)
Application Number:
PCT/CN2021/131076
Publication Date:
April 27, 2023
Filing Date:
July 08, 2022
Export Citation:
Assignee:
HUIZHOU YUSSEN CHEMICAL CO LTD (CN)
International Classes:
B01D3/14; C07C7/04; C07C9/08; C07C11/06
Foreign References:
| CN204589029U | 2015-08-26 | |||
| CN204601653U | 2015-09-02 | |||
| CN111302922A | 2020-06-19 | |||
| CN109715258A | 2019-05-03 | |||
| CN210495280U | 2020-05-12 | |||
| CN111467825A | 2020-07-31 | |||
| CN110105216A | 2019-08-09 | |||
| US20080167512A1 | 2008-07-10 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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