Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge
Abstract
The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones. The gasifier and/or gasification process has a char that is more energy-dense and almost devoid of moisture that affords for an additional (or char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to a evaporation and devolatilization zone. As such, the additional (or char) oxidation zone contributes to augmenting the reduction zone temperature, thereby providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.
- Inventors:
- Issue Date:
- Research Org.:
- US Department of Energy (USDOE), Washington DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1632513
- Patent Number(s):
- 10550343
- Application Number:
- 15/990,725
- Assignee:
- Patel, Nikhil Manubhai, Grand Forks, ND (United States))
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- DOE Contract Number:
- FC26-05NT42465
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/28/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Patel, Nikhil Manubhai. Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge. United States: N. p., 2020.
Web.
Patel, Nikhil Manubhai. Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge. United States.
Patel, Nikhil Manubhai. Tue .
"Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge". United States. https://www.osti.gov/servlets/purl/1632513.
@article{osti_1632513,
title = {Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge},
author = {Patel, Nikhil Manubhai},
abstractNote = {The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones. The gasifier and/or gasification process has a char that is more energy-dense and almost devoid of moisture that affords for an additional (or char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to a evaporation and devolatilization zone. As such, the additional (or char) oxidation zone contributes to augmenting the reduction zone temperature, thereby providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {2}
}