METHOD FOR RECOVERING ENERGY IN-SITU FROM UNDERGROUND RESOURCES AND UPGRADING SUCH ENERGY RESOURCES ABOVE GROUND

• Main Authors: LAUBIS, TERRY JAMES, CALDERON, ALBERT
• Format: Patent
• Language: English; French
• Published: 15.07.2014
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; ADHESIVES; CHEMISTRY; DYES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIRELIGHTERS; FIXED CONSTRUCTIONS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL GAS; NATURAL RESINS; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PAINTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; POLISHES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE

A method for recovering energy in-situ from underground resources such as coal and upgrading such energy above ground, comprising a first step consisting of injecting a hot recycling gas through said resource to devolatilize it to produce a raw hydrogen rich gas and an in-situ residual hot char wherein said hydrogen rich gas is brought above ground and is treated to become a cleaned, upgraded hydrogen rich gas serving as a feedstock to make a chemical and/or transportation fuel, and a second step consisting of injecting a waste greenhouse gas like carbon dioxide(CO2)plus an oxidant such as air into said hot char to convert said CO2 into CO + N2 which is brought above ground and treated to form a clean lean gas which can be beneficially used to: (i) generate efficient electric power, (ii) heat the hydrogen rich recycle gas, and (iii) make a needed by-product such as fertilizer.