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

Low-temperature rectisol process and device

A low-temperature methanol washing and process technology, which is applied in the petroleum industry, combustible gas purification, and separation of dispersed particles, to achieve the effect that the output will not decrease

Inactive Publication Date: 2010-07-14
CHINA COAL ENERGY HEILONGJIANG COAL CHEM
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the present invention is to provide a low-temperature methanol washing process, the heat exchanger will not generate clogging and pressure difference problems during operation, and the gas production will not be affected

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
  • Low-temperature rectisol process and device
  • Low-temperature rectisol process and device
  • Low-temperature rectisol process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with the examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0025] The low-temperature methanol washing process provided by the invention comprises the following steps:

[0026] Step a) spray methanol solution into the crude gas to be treated, so that the methanol atomizes and dissolves into the crude gas to lower the freezing point of the gas. The volume concentration of the injected methanol solution is preferably 98%-99.8%, and the amount of the methanol solution is preferably 180kg / h-190kg / h.

[0027] Step b) performing primary cooling on the crude gas sprayed into the methanol solution. Since methanol is dissolved in the crude gas, the freezing point of methanol is as low as...

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 provides a low-temperature rectisol process, comprising the following steps: a) injecting methyl alcohol solution into untreated gases; b) cooling the untreated gases in which methyl alcohol solution is injected; and c) injecting the methyl alcohol solution into the cooled untreated gases again. The invention also provides a low-temperature rectisol device, comprising a second jet bubbler, a first heat exchanger and a first jet bubbler, wherein the second jet bubbler injects the methyl alcohol solution into the untreated gases, the first heat exchanger cools the untreated gases in which the methyl alcohol solution is injected, and the first jet bubbler injects the methyl alcohol solution into the cooled untreated gases again. The low-temperature rectisol process provided by the invention injects the methyl alcohol solution into the untreated gases before cooling to ensure that methyl alcohol is atomized and blended into gaseous phase, and the freezing point of the untreated gases is lowered; when cooling, moisture in the untreated gases has small possibility of condensing, so that the phenomenon that tube bundles are blocked in the heat exchanger can not appear, and gas output does not decrease.

Description

technical field [0001] The invention relates to the technical field of gas purification, in particular to a process and a device for removing acid gas in coal gas by using low-temperature methanol as an absorbent. Background technique [0002] Because the acid gas will solidify and block the equipment pipeline during the cooling process of the raw material gas, it will poison the catalyst during the chemical synthesis process, and at the same time, because of its dilution, it will reduce the calorific value of the fuel gas or increase the power consumption of the gas transportation process, so the acid gas needs to be The gas is removed from the feed gas. The low-temperature methanol washing process is widely used in the purification of synthetic ammonia, synthetic methanol and other carbonylation, coal gas, industrial hydrogen production and natural gas desulfurization. Acid gases in gas, with emphasis on CO 2 and H 2 S, is a physical absorption process. [0003] Please...

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
IPC IPC(8): B01D53/14C10K1/18
Inventor 吴昌祥刘福生佟黎明姜海潮钟启前杨玉满
Owner CHINA COAL ENERGY HEILONGJIANG COAL CHEM
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