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Membrane separation osmotic gas pressure self-propelling system

A technology of membrane separation and membrane separator, which is applied in the direction of semipermeable membrane separation, separation method, and separation of dispersed particles, which can solve the problems of increased energy consumption and poor application effect of membrane separation technology

Pending Publication Date: 2020-06-12
TIANBANG NAT ENG RES CENT OF MEMBRANE TECH +1
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Problems solved by technology

[0003] The driving force of gas membrane separation is the pressure difference, and when the pressure difference between the upstream and downstream of the process cannot meet the requirements of membrane separation, membrane separation technology often cannot have a good application effect, and traditional solutions will increase a lot of energy consumption

Method used

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  • Membrane separation osmotic gas pressure self-propelling system

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Embodiment Construction

[0013] The present invention will be further explained below in conjunction with specific examples.

[0014] like figure 1 As shown, a membrane separation permeate pressure self-propelled system includes a membrane separator 1, a turbine 2 and a heat exchanger 3;

[0015] The membrane separator 1 has an inlet 13, a permeate gas outlet 11, and a non-permeate gas outlet 12;

[0016] The turbine 2 has an expansion end and a booster end; the expansion end has an expansion end inlet 22 and an expansion end outlet 23, and the booster end has a booster end inlet 24 and a booster end outlet 21;

[0017] The non-permeable gas outlet 12 of the membrane separator 1 is connected to the inlet 22 of the expansion end of the turbine 2, the permeate gas outlet 11 of the membrane separator 1 is connected to the inlet 24 of the booster end of the turbine 2, and the outlet 21 of the booster end of the turbine 2 is connected to heat exchanger 3.

[0018] The expansion end and booster end of th...

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Abstract

The invention discloses a membrane separation osmotic gas pressure self-propelling system. A non-permeable gas outlet (12) of a membrane separator (1) is connected with an expansion end inlet (22) ofa turbine (2), a permeable gas outlet (11) of the membrane separator (1) is connected with a pressurization end inlet (24) of the turbine (2), and a pressurization end outlet (21) of the turbine (2) is connected with a heat exchanger (3). The non-permeable gas pressure of the membrane separator is high, and is slightly less than the gas inlet pressure of the membrane separator; and the osmotic gaspressure of the membrane separator is relatively low. Non-permeation gas enters the turbine expansion end, expands, and drives the turbine pressurization end to rotate through a bearing, and permeation gas enters the turbine pressurization end, is pressurized to the proper pressure required by the downstream process, is cooled through the heat exchanger and then is conveyed to a downstream process pipeline. The problem that the application effect of the membrane separation technology is unsatisfactory when the pressure difference between the upstream and downstream of the process cannot meetthe membrane separation requirement is solved.

Description

technical field [0001] The invention relates to the field of gas separation, in particular to a pressure self-propelled system for membrane separation of permeated gas. Background technique [0002] With the rapid development of modern science and technology, the technical requirements for the separation and reuse of industrial gases are getting higher and higher, and some proprietary technologies are gradually encountering difficult technical obstacles. [0003] The driving force of gas membrane separation is the pressure difference, and when the pressure difference between the upstream and downstream of the process cannot meet the requirements of membrane separation, membrane separation technology often cannot have a good application effect, and traditional solutions will increase a lot of energy consumption. Contents of the invention [0004] In order to overcome the above defects, a pressure self-propelled system for membrane separation of permeate gas is provided. ...

Claims

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Application Information

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IPC IPC(8): B01D53/22B01D61/00B01D63/00
CPCB01D53/22B01D61/00B01D63/00
Inventor 罗宗敏任小坤徐徜徉高元景
Owner TIANBANG NAT ENG RES CENT OF MEMBRANE TECH
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