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Application of tubular metal powder sintering membrane

A metal powder and sintered membrane technology, which is applied in the field of gas membrane separation, can solve the problems of low membrane flux, short service life, and large membrane pressure difference.

Active Publication Date: 2008-10-22
SINOPEC NANJING RES INST OF CHEM IND CO LTD
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  • Abstract
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Problems solved by technology

[0002] The traditional membrane separation technology generally adopts the process of compression→condensation→membrane separation→organic matter separation. The pressure required in the membrane separation process is high, the pressure difference between the membrane levels is large, and the permeate is mostly organic matter, and the membrane material is mostly polymer membrane. Therefore, the energy consumption is large, the membrane flux is small, and the service life of the membrane is short.

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  • Application of tubular metal powder sintering membrane

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Embodiment Construction

[0008] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0009] as attached figure 1 , The technology of the present invention includes three processes, membrane separation→condensation→compression of residual non-condensable gas. The mixed gas 1 containing condensable organic gas is separated in the gas membrane separator 2, the pressure of the mixed gas 1 entering the membrane separator 2 is: 0.2~0.4MPa, the temperature is: normal temperature~-5℃, the membrane separator 2 The permeate side is the recyclable non-condensable gas enriched with the most permeate components in the inlet mixed gas 1, so that the permeate gas 3 (such as N 2 ), the pressure of the permeated gas 3 is: 0.15-0.35MPa, and the mixed gas enriched with the least permeable condensable organic gas in the inlet mixed gas 1 is produced on the residual side, and the residual gas 4 is the residual gas at the outlet of the residual side. The...

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Abstract

The present invention provides the application of tubular metal powder sintering membrane, and the tubular metal powder sintering membrane is used in a process including membrane separate, condensating and compressing residual non-condensable gas. Mixed gas containing condensable organic gas is separated in the gas membrane separator, and the membrane separating process has low required pressure, low required temperature and low required membrane stage pressure different. The separating membrane is tubular semi-infiltrating stainless steel powder sintering membrane with flux of 50-100 Nm3 / sq m. hr, and has power consumption lower than common separating membrane and longer service life.

Description

Technical field: [0001] The present invention relates to from containing noncondensable gas (such as N 2 ) and condensable organic gas compound gas mixture to separate a gas membrane separation technology for hydrocarbon compounds. It is characterized by the use of a tubular metal powder sintered membrane to treat such gases. Background technique: [0002] The traditional membrane separation technology generally adopts the process of compression→condensation→membrane separation→organic matter separation. The pressure required in the membrane separation process is high, the pressure difference between the membrane levels is large, and the permeate is mostly organic matter, and the membrane material is mostly polymer membrane. Therefore, the energy consumption is large, the membrane flux is small, and the service life of the membrane is short. Invention content: [0003] The purpose of the present invention is to provide a membrane separation technology with lower energy c...

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Application Information

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IPC IPC(8): B01D71/02B01D69/04B01D53/22
Inventor 谭念华俞钟敏孔凡敏王祥云
Owner SINOPEC NANJING RES INST OF CHEM IND CO LTD