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

Preparation method of oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for partial oxidation of methane to hydrogen

An oxygen-permeable membrane, hydrogen-permeable membrane technology, applied in chemical instruments and methods, chemical/physical/physical-chemical fixed reactors, chemical/physical processes, etc., can solve the problem that product separation cannot be carried out at the same time in the same reactor, etc. question

Active Publication Date: 2020-02-07
SHANDONG UNIV OF TECH
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a preparation method of an oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for hydrogen production by partial oxidation of methane, which realizes the integration of air separation-hydrogen production by partial oxidation of methane-hydrogen separation and purification, and solves the problem of The problem that the raw material separation of methane partial oxidation reaction, methane reaction and product separation cannot be carried out simultaneously in the same reactor; the present invention provides its reactor simultaneously

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
  • Preparation method of oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for partial oxidation of methane to hydrogen
  • Preparation method of oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for partial oxidation of methane to hydrogen
  • Preparation method of oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for partial oxidation of methane to hydrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 100g La 0.6 Sr 0.4 co 0.2 Fe 0.8 o 3 (LSCF) ceramic powder and 100g SrCe 0.9 Y 0.1 o 3 (SCY) ceramic powders are ball-milled and dispersed on a ball mill, passed through a 200-mesh sieve, and dried in an oven at 100°C; the dried LSCF ceramic powders and SCY ceramic powders are respectively added to 60g of 20wt.% polyethersulfone formazan In the base pyrrolidone solution, fully stir and disperse to obtain two kinds of film-forming liquids; extrude the film-forming liquids through an extruder and dry naturally to obtain LSCF tubular ceramic oxygen-permeable membrane blanks and SCY tubular ceramic hydrogen-permeable membrane blanks; and then The LSCF tubular ceramic oxygen-permeable membrane body was heated up to 1350°C at a heating rate of 5°C / min in a box-type high-temperature resistance furnace, kept for 5 hours, then cooled to 800°C at a cooling rate of 5°C / min, and then naturally cooled to room temperature , to obtain a LSCF tubular dense ceramic oxygen-permeab...

Embodiment 2

[0051] According to the method of Example 1, LSCF tubular dense ceramic oxygen permeable membrane and SCY tubular dense ceramic hydrogen permeable membrane were prepared.

[0052] The LSCF ceramic powder and the SCY ceramic powder with a mass ratio of 1:1 were used to prepare the catalyst carrier according to the method of Example 1 by physical mixing method; After calcining at 900°C for 4 hours, ball milling for 2 hours, and sieving with a 150-mesh sieve, the catalyst precursor was obtained, and then passed into H 2 The mixed gas of hydrogen and helium with a volume fraction of 5% was reduced at 800° C. for 4 hours to obtain a supported metal nickel catalyst.

[0053] The oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for LSCF / SCY partial oxidation of methane to hydrogen was prepared according to the method in Example 1.

Embodiment 3

[0055] According to the method of Example 1, LSCF tubular dense ceramic oxygen permeable membrane, SCY tubular dense ceramic hydrogen permeable membrane and supported metal nickel catalyst were prepared.

[0056] Use concentrated hydrochloric acid to corrode and roughen the outer surface of the LSCF tubular dense ceramic oxygen permeable membrane and the inner surface of the SCY tubular dense ceramic hydrogen permeable membrane, increase the nickel catalyst and LSCF tubular dense ceramic oxygen permeable membrane, SCY tubular dense ceramic hydrogen permeable membrane The contact area also increases the gas transmission rate. Then, according to the method of Example 1, an oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for LSCF / SCY partial oxidation of methane to hydrogen was prepared.

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

The invention belongs to the technical field of inorganic membrane reactors, and in particular relates to a preparation method of an oxygen-permeable-hydrogen-permeable-reaction three-effect tubular membrane reactor for hydrogen production by partial oxidation of methane: first prepare a tubular dense ceramic oxygen permeable membrane, a tubular dense ceramic permeable membrane Hydrogen membrane, nickel catalyst; set the tubular dense ceramic hydrogen permeable membrane on the outside of the tubular dense ceramic oxygen permeable membrane, install one end on the first sealing head, and then fill the nickel catalyst in the interlayer of the two tubular membranes; set the quartz tube On the outside of the hydrogen permeable membrane, one end of the quartz tube is installed on the first sealing head; then the quartz tube and the other ends of the two tubular membranes are sealed to the second sealing head to form a reactor. The invention can prevent the deep oxidation of methane; can also realize the instant separation of hydrogen and carbon monoxide, and can promote the movement of the reaction balance to the product direction. The invention solves the problem that the raw material separation of methane partial oxidation reaction, methane reaction and product separation cannot be carried out simultaneously in the same reactor.

Description

technical field [0001] The invention belongs to the technical field of inorganic membrane reactors, and in particular relates to a preparation method of an oxygen permeation-hydrogen permeation-reaction three-effect tubular membrane reactor for hydrogen production by partial oxidation of methane. Background technique [0002] Inorganic membranes have the incomparable advantages of organic membranes such as stable structure, high temperature resistance, acid and alkali resistance, organic solvent resistance, no leaching, low energy consumption, convenient operation and low cost. Inorganic membrane separation and reactor technology, especially the coupling of inorganic membrane separation function and catalytic reaction function, is an important technology to strengthen chemical process. Functional ceramic membranes with ion-electronic mixed conductivity can not only effectively couple separation and reaction, but also have good chemical and structural stability; especially th...

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 Patents(China)
IPC IPC(8): B01J19/24
CPCB01J19/2475
Inventor 孟波孟秀霞王晓斌庄淑娟谭小耀刘少敏
Owner SHANDONG UNIV OF TECH
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