Title: Methods and systems for syngas production and for efficient, flexible energy generation

Abstract

Methods for producing syngas (e.g., H2 and CO) include introducing a stream comprising H2O and CO2 to a high-temperature co-electrolysis (HTCE) unit. A CO2 sweep gas is also introduced to the HTCE unit. Both H2O and CO2 are reduced in the HTCE unit to form the syngas and to form O2 that is swept away from the HTCE unit by the CO2 sweep gas, and the O2 and CO2 are then introduced to a combustion device (e.g., a gasifier), which may be configured to generate electrical power, as a result of combusting a carbonaceous fuel in the presence of the O2 and CO2. The HTCE unit is powered at least in part by power from an electricity-generating sub-system (e.g., at least one nuclear power plant). Related systems are also disclosed.

Inventors:

O'Brien, James E.; Stoots, Carl M.; McKellar, Michael G.; Boardman, Richard D.

Issue Date:

Tue Oct 12 00:00:00 EDT 2021

Research Org.:

Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1859933

Patent Number(s):

11142832

Application Number:

16/484,776

Assignee:

Battelle Energy Alliance, LLC (Idaho Falls, ID)

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 C21 - METALLURGY OF IRON C21B - MANUFACTURE OF IRON OR STEEL

Show more

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

C10J2300/0959 - Oxygen
C10J2300/0969 - Carbon dioxide
C10J2300/1653 - integrated in a gasification combined cycle [IGCC]

C - CHEMISTRY C21 - METALLURGY OF IRON C21B - MANUFACTURE OF IRON OR STEEL

C21B13/0073 - {Selection or treatment of the reducing gases}

C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS

C25B1/00 - Electrolytic production of inorganic compounds or non-metals
C25B1/04 - by electrolysis of water
C25B15/08 - Supplying or removing reactants or electrolytes

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS

F02C3/34 - with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle
F02C6/10 - supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E20/16 - Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Y02E20/18 - Integrated gasification combined cycle [IGCC]
Y02E60/36 - Hydrogen production from non-carbon containing sources

Show less

DOE Contract Number:  

AC07-05ID14517

Resource Type:

Patent

Resource Relation:

Patent File Date: 02/09/2018

Country of Publication:

United States

Language:

English