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

Method for synthesis of glycol and co-production of LNG by using coke oven gas and converter and/or blast-furnace gas

A technology of coke oven gas and blast furnace gas, which is applied in the field of synthesizing ethylene glycol and co-producing LNG, which can solve the problems of only being used as fuel, ineffective components being fully utilized, and poor regulation

Active Publication Date: 2019-01-01
戴乐亭 +3
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, converter gas and blast furnace gas are rich in carbon and low in hydrogen. At present, only a single gas is used to produce a certain product in the industry, which will lead to the inability to fully utilize some effective components in the gas, poor regulation, and contain some effective components. Part of the exhaust gas needs to find another way or can only be used as fuel, resulting in energy waste and environmental pollution

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
  • Method for synthesis of glycol and co-production of LNG by using coke oven gas and converter and/or blast-furnace gas
  • Method for synthesis of glycol and co-production of LNG by using coke oven gas and converter and/or blast-furnace gas
  • Method for synthesis of glycol and co-production of LNG by using coke oven gas and converter and/or blast-furnace gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0196] A method for co-producing LNG with coke oven gas and converter and / or blast furnace gas to synthesize ethylene glycol,

[0197] Including the following steps:

[0198] S0), initial purification of coke oven gas and converter and / or blast furnace gas

[0199] The flow of coke oven gas before initial purification is 83052Nm 3 / h, the pressure is 0.005Mpa, the temperature is 20℃; among the active ingredients, the volume fraction of methane is 20.8%, the volume fraction of hydrogen is 60.31%, the volume fraction of carbon monoxide is 8.9%, and the volume fraction of oxygen is 0.82 %, the volume fraction of carbon dioxide is 2.58%, and the content of tar and dust is 0.015g / Nm 3 , The content of hydrogen sulfide is 50mg / Nm 3 , The content of other sulfides is 155.2mg / Nm 3 ; The flow rate of the converter and / or blast furnace gas before the initial purification is 29000Nm 3 / h, the pressure is 0.005Mpa, and the temperature is 20°C; among the active ingredients, the volume fraction of...

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

PropertyMeasurementUnit
volume ratioaaaaaaaaaa
volume ratioaaaaaaaaaa
volume ratioaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for synthesis of glycol and co-production of LNG by using coke oven gas and converter and / or blast-furnace gas, belonging to the technical field of chemical engineering. According to a technical scheme in the invention, the method comprises the following steps: subjecting coke oven gas to dust removal and tar removal treatment, and then performing compression treatment, and then performing crude desulfurization; removing impurities in the coke oven gas having undergone desulfurization treatment; subjecting the gas having undergone impurity removal to compression, fine desulfurization and O2 removal; then removing CO2 gas in the gas by using an amine process; carrying out cryogenic separation to obtain the product LNG, separating H2 and CO-rich gas at the same time, and then purifying H2; then subjecting converter and blast-furnace gas to dust removal and tar removal treatment; then carrying out compression and impurity removal, subjecting the gas having undergone impurity removal to fine desulfurization and O2 removal, and then removing CO2 gas in the gas; and combining the purified gas with the CO-rich gas, purifying the CO gas, subjecting the purified CO to esterification-carbonylation cyclic synthesis to produce DMO, and producing glycol from DMO and purified hydrogen. The method of the invention is applied to the synthesis technology of glycol for the first time.

Description

Technical field [0001] The invention relates to the field of gas purification, in particular to a method and device for synthesizing ethylene glycol from coke oven gas and converter and / or blast furnace gas to co-produce LNG. Background technique [0002] Coke oven gas, also known as coke oven gas, refers to a combustible gas produced by coke and tar products after high-temperature dry distillation of coking coal in the coke oven. It is a by-product of the coking industry. Coke oven gas has a higher calorific value and is usually used as fuel for high-temperature industrial furnaces or city gas. [0003] With the gradual increase in environmental protection requirements, the new coking industry access standards have clearly stipulated that the utilization rate of coke oven gas should exceed 98%. At the same time, the coking industry market is sluggish and overcapacity is serious. People are beginning to realize the huge use value of coke oven gas. Therefore, many coke oven gas uti...

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): C07C29/149C07C31/20C10L3/10C10L3/08
CPCC07C29/149C07C67/36C10L3/08C10L3/10C07C31/202C07C69/36
Inventor 杨勇戴乐亭汪武平侯俊平
Owner 戴乐亭
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