Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for producing benzene by taking coal bed gas as raw material

A technology for coalbed methane and raw materials, which is applied in the technical field of obtaining benzene by aromatizing treatment in a circulating fluidized bed, can solve problems such as lack of economic advantages, and achieve the effects of improving benefits and improving the environment.

Active Publication Date: 2014-09-10
沈建立
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] But these methods are only to convert coal bed methane from one fuel to another, and there is not much economic advantage
At present, there are no patents or papers published on the conversion of coalbed methane into chemical raw materials

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
  • Process for producing benzene by taking coal bed gas as raw material
  • Process for producing benzene by taking coal bed gas as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, the raw coalbed methane is 50m 3 The N / h intake air is passed into the purification system, and the methane gas is adsorbed by the four-tower cycle. The operating pressure range is 0.1-0.8Mpa. Among them, methane gas production is 40m 3 N / h, the methane content is above 95%, and sent to the methane gas storage tank. The methane gas from the methane storage tank is 30m 3 The N / h intake air is passed into the inlet pipe at the bottom of the reaction tower in the circulating fluidized bed aromatization treatment system, and the aromatization treatment is carried out under the action of the molybdenum molecular sieve catalyst. After the aromatization treatment, the reaction gas and some catalyst particles are brought into the cyclone separator through the riser. The solid catalyst particles are separated by the cyclone separator and then enter the catalyst regeneration tower. The gas enters the benzene separation device through the top outlet ...

Embodiment 2

[0034] Such as figure 1 As shown, the raw coalbed methane is 50m 3 The N / h intake air is passed into the purification system, and the methane gas is adsorbed by the four-tower cycle. The operating pressure range is 0.1-0.8Mpa. Among them, methane gas production is 40m 3 N / h, the methane content is above 95%, and sent to the methane gas storage tank. The methane gas from the methane storage tank is 30m 3 The N / h intake air is passed into the inlet pipe at the bottom of the reaction tower in the circulating fluidized bed aromatization treatment system, and the aromatization treatment is carried out under the action of the molybdenum molecular sieve catalyst. After the aromatization treatment, the reaction gas and some catalyst particles are brought into the cyclone separator through the riser. The solid catalyst particles are separated by the cyclone separator and then enter the catalyst regeneration tower. The gas enters the benzene separation device through the top outlet ...

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 relates to a process for producing benzene. By taking a coal bed gas as a raw material, a methane gas is purified by prostate-specific antigen (PSA) purification, and the benzene is obtained by aromatization treatment of a circulating fluid bed. Compared with the prior art for producing benzene by taking the coal bed gas as the raw material, the economic effect is very significant. The coal bed gas is taken as a raw material, so that the raw material source is expanded, and the cost is greatly reduced. The purity of the methane gas is increased, and the methane gas can be directly subjected to aromatization by purification. The aromatization process is simple in technology, convenient to prepare, easy to operate, environment-friendly and free of pollution by application of the process in the circulating fluid bed. The high-purity benzene prepared by the process can meet the requirements of chemical materials, meanwhile, the existing utilization system of which the coal bed gas is just applied to fuel is broken, and a new way is initiated for utilization of the coal bed gas as the chemical material.

Description

technical field [0001] The invention belongs to a process for producing benzene, and in particular relates to a process of using coal bed gas as a raw material, obtaining methane gas through PSA purification, and obtaining benzene through circulating fluidized bed aromatization treatment. Background technique [0002] Coalbed methane is a mixture of various gases mainly composed of methane and containing a small amount of nitrogen, carbon dioxide and oxygen. It is an associated gas that mainly exists in coal mines and belongs to unconventional natural gas. If coalbed methane is exploited before coal mining, it can not only avoid coal mine gas explosion, but also obtain clean energy and high-quality chemical raw materials. [0003] my country is rich in coalbed methane resources, with recoverable resources of about 10 trillion cubic meters. At present, because no reasonable means of utilization have been found, most of the coalbed methane is still discharged into the atmosphe...

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): C07C15/04C07C2/76C07C7/04C01B3/02C01B3/56
CPCY02P20/584
Inventor 沈建立
Owner 沈建立