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

A carbon monoxide shift process

A carbon monoxide and process technology, applied in the field of carbon monoxide conversion process, to achieve the effect of broadening the use conditions and broadening the source range

Active Publication Date: 2022-05-17
SINOPEC NANJING RES INST OF CHEM IND CO LTD +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] At present, there is no carbon monoxide shift reaction process applicable to a variety of feedstock gases (such as synthesis gas, coke oven gas, blast furnace gas, self-combined gas and laboratory coal gasification product gas as feedstock gas) and various conditions

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
  • A carbon monoxide shift process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The raw material gas is a self-combined gas, in which the volume fraction of hydrogen is 64%, the volume fraction of carbon monoxide is 20%, the volume fraction of carbon dioxide is 10%, and the volume fraction of methane is 12%.

[0039] A schematic diagram of the carbon monoxide shift process is shown in figure 1 , the carbon monoxide shift process comprises the following steps:

[0040] (1) Raw material gas purification: The raw material gas passes through the desulfurization and dechlorination reactors controlled at a pressure of 3.0Mpa and a temperature of 240°C in sequence. The crude desulfurization catalyst A is zinc oxide, and the fine desulfurization catalyst B is a mixture of cobalt-molybdenum catalyst and iron oxide , the volume ratio of A:B is 1.5:1, and after cooling by the water cooling system and gas-liquid separation, the purified feed gas with a sulfide concentration of 0.08ppm and a chloride concentration of 0.04ppm is obtained;

[0041] (2) Water vap...

Embodiment 2

[0047] The raw material gas is coke oven gas, in which the volume fraction of hydrogen is 60%, the volume fraction of carbon monoxide is 10%, the volume fraction of carbon dioxide is 3%, the volume fraction of methane is 18%, and the hydrocarbon is 3%.

[0048] The carbon monoxide shift process includes the following steps:

[0049] 1) Purification of raw material gas: The raw material gas passes through the desulfurization and dechlorination reactors with a pressure of 2.5Mpa and a temperature of 200°C. The crude desulfurization catalyst A is a mixture of zinc oxide and activated carbon, and the fine desulfurization catalyst B is a cobalt-molybdenum catalyst. : B volume ratio is 2.0:1, and then after cooling by water cooling system and gas-liquid separation, the purified raw material gas with sulfide concentration of 0.05ppm and chloride concentration of 0.01ppm is obtained;

[0050] (2) Water vaporization: deionized water is pumped into the vaporizer with a temperature contr...

Embodiment 3

[0056] The raw material gas is the product gas of Inner Mongolia lignite gasification in the laboratory, which contains hydrogen volume fraction of 56%, carbon monoxide volume fraction of 15%, carbon dioxide volume fraction of 14%, methane volume fraction of 5%, and hydrocarbons of 6%.

[0057] The carbon monoxide shift process includes the following steps:

[0058] 1) Purification of raw material gas: The raw material gas passes through the desulfurization and dechlorination reactors with the pressure controlled at 3.0Mpa and the temperature controlled at 240°C. The crude desulfurization catalyst A is a mixture of zinc oxide and activated carbon, and the fine desulfurization catalyst B is a cobalt-molybdenum catalyst and oxidation Iron mixture, the volume ratio of A:B is 1.8:1, after cooling by water cooling system and gas-liquid separation, the purified raw material gas with sulfide concentration of 0.02ppm and chloride concentration of 0.01ppm is obtained;

[0059] (2) Wate...

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 chemical industry, and in particular relates to a carbon monoxide conversion process. The steps include: (1) raw material gas purification; (2) water vaporization; (3) gas-vapor mixing; (4) conversion reaction; (5) gas-liquid separation. The carbon monoxide conversion process of the present invention adopts the desulfurization and dechlorination purification process matched with the conversion process, which broadens the source range of raw material gas; the isothermal conversion reaction furnace can quickly and effectively remove the heat of reaction, compared with the traditional reaction furnace, The copper-based shift catalyst used in the furnace has a good protective effect, and the use conditions of the catalyst have been broadened. It is suitable for synthesis gas, coke oven gas, blast furnace gas, auto It is applicable to the combination of gas and laboratory coal gasification product gas as raw material gas, and the conversion rate of carbon monoxide can reach more than 90%.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a carbon monoxide conversion process. Background technique [0002] Carbon monoxide shift reaction refers to the reaction of carbon monoxide and water vapor to generate carbon dioxide and hydrogen under certain conditions. [0003] CO+H 2 O→CO 2 +H 2 [0004] The shift reaction is an exothermic reaction, and low temperature is conducive to the positive reaction, so the lower the temperature, the more favorable the reaction. Shift reactions are generally divided into low-temperature (usually 200-300°C) shift reactions and high-temperature (usually 300-500°C) shift reactions according to temperature. At present, many factories producing hydrogen generally adopt the process of high-temperature transformation and low-temperature transformation in series to ensure a more complete transformation of CO. [0005] The temperature of the gas after the high-tempe...

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): C01B3/16
CPCC01B3/16C01B2203/0283C01B2203/04C01B2203/1076C01B2203/1211C01B2203/1258C01B2203/127C01B2203/1288Y02P20/52
Inventor 王金利蔡进张杰吴学其朱艳芳黄先亮徐本刚吴琳
Owner SINOPEC NANJING RES INST OF CHEM IND CO LTD
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