Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Membrane gas separation plant and method for operating same

A gas separation and factory technology, which can be used in separation methods, chemical instruments and methods, gas fuels, etc., and can solve problems such as lower yields of finished products

Inactive Publication Date: 2013-08-28
"盖瑞斯"股份有限公司
View PDF14 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] as in figure 2 The provided simulation results show that at the set pressure of the initial gas and the pressure set ratio b=Р(high) / Р(low)=20 in the HPC and LPC of MGSU, by using a membrane with a selectivity exceeding 20, Increased product yield (natural gas stripped of hydrogen sulfide) with purging of the non-permeable part, with this method, when using a membrane with a selectivity of less than 20, the product yield decreases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Membrane gas separation plant and method for operating same
  • Membrane gas separation plant and method for operating same
  • Membrane gas separation plant and method for operating same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] High Pressure Associated Gas Purification for Water Vapor Removal in a Single Stage Plant

[0106] Feedstock (HPGM with a pressure of 60 bar, water content 0.07% mole, methane 93.6% mole, CO2 2.9% mole, others: hydrocarbons C2–C5) is supplied to the interior of the plant through inlet nozzles, the plant consists of MGSUs connected in parallel with hollow fiber based MGSMs (the structure of the MGSM is in figure 2 shown and described above). Raw material is supplied to MGSM HPC (interfiber space). Part of the gas (permeate) from the HPC permeates through the wall to the LPC (inner fiber channel) when passing along the fiber. The finished product obtained at outlet from HPC (non-permeate) is divided into two parts. The main part is detached through the corresponding nozzles at a pressure of 59 bar. The lesser part (sweeping gas flow) is supplied through a hole in the inner cover to the chamber above the open part of the fiber opposite the outlet, where it is directed...

Embodiment 2

[0109] High-pressure associated gas purification for hydrogen sulfide removal in a single-stage plant

[0110] Raw materials (HPGM with a pressure of 20 bar, hydrogen sulfide content 0.02% mole, methane 88.9% mole, CO2 2.9% mole, nitrogen 0.2% mole, others: hydrocarbons C2–C5) are supplied to the interior of the plant through inlet nozzles, and the plant includes MGSU and MGSMs based on hollow fiber parallel connection (the structure of MGSM is in figure 2 shown and described above). Passing along the fiber, the high-pressure gas mixture components of the gas from the HPC (inner fiber channel) permeate through the wall to the LPC (inner fiber channel), at the same time the mixture strips off easily permeable components, and the resulting finished product (not Permeate) is divided into two parts. The main part of the non-permeate is recovered through the corresponding nozzles at a pressure of 19 bar. A lesser portion of the non-permeate (sweeping gas flow) is supplied throu...

Embodiment 3

[0113] High Pressure Associated Gas Purification for Hexane Removal in a Single Stage Plant

[0114] Feedstock (HPGM with a pressure of 14 bar, hexane content 0.95% mol, methane 70.5% mol, water 0.55% mol) enters the interior of the plant through inlet nozzles, and the plant consists of MGSUs connected in parallel with hollow fiber-based MGSMs (the structure of the MGSM is in figure 2 shown and described above). Feedstock is introduced into the MGSM HPC (interfiber space). When passing along the fiber, components of the gas mixture of the HPC penetrate the fiber walls (inner channels of the fiber) in the LPC. The finished product (non-permeate) was divided into two parts. The main part of the non-permeate is recovered through the corresponding nozzles at a pressure of 14 bar. The lesser portion is supplied through a hole in the inner cover to a chamber above the open portion of the fiber opposite the outlet nozzle, where it is directed to purge the inner fiber channel wher...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method is proposed for operating a plant for purifying a high-pressure gas mixture from easily permeating components, which plant comprises membrane gas separating units having a high-pressure chamber and a low-pressure chamber with a selectively permeable membrane therebetween, in which method the low-pressure chamber of at least one membrane gas separating unit is continuously flushed with purified gas mixture (semi-finished product or product), wherein the pressure difference between the aforementioned chambers of the membrane gas separating unit and, likewise, the flow rate of the purified gas mixture used for flushing are maintained so that the amount of each easily permeating component in the product does not exceed the desired values. The proposed method makes it possible to purify a raw material (high-pressure gas mixture) from one or more easily permeating components simultaneously (in particular helium, hydrogen sulphide, mercaptans, carbon dioxide, water and / or heavy hydrocarbons), increase purification efficiency (i.e. the ratio between the total area of the selectively permeable membrane in the plant, the productivity of said membrane and the specific energy consumption of the gas separation process), and provide the possibility of using (treating or preparing) raw material with a higher content of easily permeating components.

Description

technical field [0001] The present invention relates to the field of separation of gas mixtures by selectively permeable membranes (SPMs) and can be applied in gas, petroleum, chemical and other industrial fields. Background technique [0002] Most tasks in the purification of hydrocarbon gas mixtures require simultaneous processing of feedstock as HPGM (high pressure gas mixture), simultaneous removal of several components, and at the same time, usually have to be performed without significant pressure loss of HPGM and with minimal loss of feedstock (i.e., with maximum product yield). , the term finished product refers to the raw material purified to the set parameters) to complete the purification process. [0003] For example, natural gas supplied to mains must comply with industry standards relevant in this field for the threshold content of several constituents, namely, the content of hydrogen sulphide, mercaptans, CO2, water vapor and condensed hydrocarbons. For mild ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/22
CPCB01D53/226B01D2256/245B01D2257/304B01D2257/306B01D2257/702B01D2257/80B01D53/002B01D53/229B01D2257/11C10L3/101B01D53/225
Inventor M·A·古利亚尼茨基N·L·多库恰夫A·A·科坚科E·G·克拉舍宁尼科夫S·V·波捷欣M·M·切利亚卡M·K·捷列霍夫
Owner "盖瑞斯"股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com