Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge

Patel, Nikhil Manubhai

Title: Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge

Patent · Tue Jul 18 00:00:00 EDT 2023

OSTI ID:2221981

Patel, Nikhil Manubhai

gasifier and a gasification process 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 gasification process produces a char that is more energy-dense and almost devoid of moisture, affording an additional (char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to an evaporation and devolatilization zone. As such, the additional (char) oxidation zone contributes to augmenting the reduction zone temperature, providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.

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Research Organization:: US Dept. of Energy (USDOE), Washington, DC (United States); US Army Research Office (ARO)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-05NT42465; W9132T-08-2-0014

Assignee:: Patel, Nikhil Manubhai, Grand Forks, ND (United States)

Patent Number(s):: 11,702,604

Application Number:: 17/570,448

OSTI ID:: 2221981

Resource Relation:: Patent File Date: 01/07/2022

Country of Publication:: United States

Language:: English

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