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

Gasification of carbonaceous materials using pulsed oxygen

a carbonaceous material and gasification technology, applied in the field of gasification of carbonaceous materials, can solve the problems of high temperature within the gas jet, slag formation (loss of fluidization), accumulation of carbaneous materials in both the gasification and oxidation stages of the gasifier system,

Inactive Publication Date: 2010-10-28
SYNGAS TECH
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0032]m) removing any excess solids from the gasification process unit to maintain a predetermined balance of solids.
[0

Problems solved by technology

The direct injection of oxygen or air into a gasifier chamber typically leads to high temperatures within the gas jet associated with the nozzle or injection device used to introduce the oxidant.
If the amount of oxidation is excessive (too much carbaneous material with excessive air), the solids may undergo an unacceptably high temperature rise, resulting in either slag formation (loss of fluidization) or the volatilization and redeposition of undesired inorganic material in the colder sections of the gas conduits.
Operating the oxidation zone at lower than desired temperatures can lead to the accumulation of carbaneous material in both the gasification and oxidation stages of the gasifier system.

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
  • Gasification of carbonaceous materials using pulsed oxygen
  • Gasification of carbonaceous materials using pulsed oxygen
  • Gasification of carbonaceous materials using pulsed oxygen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037]Any suitable carbonaceous material (solid, liquid or gaseous) that is capable of being used as a fuel source can be used in the practice of the present invention. Non-limiting examples of such carbonaceous materials that can be used in the practice of the present invention include: i) petroleum derived carbonaceous materials such as methane, heavy hydrocarbonaceous oils, heavy and reduced petroleum crude oils, petroleum atmospheric bottoms, petroleum vacuum distillation bottoms, heavy hydrocarbon residues and asphalt; ii) bitumens, tar sand oil, pitch, and shale oil; iii) natural gas; iv) coals such as lignite, sub-bituminous, bituminous, and anthracite; v) coal derived materials including coal liquid products obtained from coal liquefaction as well as gaseous products obtained by coal gasification; and vi) biomass feeds.

[0038]Gasifiers designs can be broadly grouped into slagging / non-slagging and single or multistage devices. Non-slagging gasifiers operate at temperatures bel...

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

A process for the gasification of carbonaceous materials for the product of syngas. Pulsed oxygen is used to maintain the temperature of the gasification zones and to avoid hot spots in the gasification reactor.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims benefit of Provisional Applications 61 / 214,482 filed Apr. 24, 2009; 61 / 270,645 filed Jul. 10, 2009; and 61 / 295,355 filed Jan. 15, 2010.FIELD OF THE INVENTION[0002]The present invention relates to the gasification of carbonaceous materials for the product of syngas. Pulsed oxygen is used to maintain the temperature of the gasification zones and to avoid hot spots in the gasification reactor.BACKGROUND OF THE INVENTION[0003]Gasification is a process that converts carbonaceous materials, such as coal, petroleum, or biomass into predominantly carbon monoxide and hydrogen (syngas) by reacting the carbonaceous material at high temperatures with a controlled amount of oxygen. Syngas may be burned directly in internal combustion engines, used to produce methanol, dimethyl ether, or hydrogen, or converted via the Fischer-Tropsch process into synthetic fuels. Syngas can also be used to produce other products.[0004]Gasificati...

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): C10J3/00
CPCC10J3/482C10J3/721C10J2300/0976C10J2300/0916C10J2300/0959C10J3/723Y02P20/145
Inventor GOETSCH, DUANE A.HITCHINGHAM, JACQUELINEWHITE, LLOYD R.
Owner SYNGAS TECH