Patent ID: 8701764

Claim:
A plant for generation of steam for oil sand recovery from carbonaceous fuel with capture of CO 2 from the exhaust gas, the plant comprising: at least one fuel line for introduction of the fuel into a combustion chamber; at least one air line for introduction of air or another oxygen containing gas into the combustion chamber; at least one heat coil arranged in the combustion chamber to cool the combustion gases in the combustion chamber to produce steam and superheated steam in the heat coils; steam withdrawal lines for withdrawing steam from the heat coils; an exhaust gas line for withdrawal of exhaust gas from the combustion chamber; one or more compressors to compress the air or oxygen containing gas to be introduced into the combustion chamber operating at a pressure of 5 to 15 bara; one or more heat exchangers for cooling of the combustion gas in the exhaust gas line; a contact device where the cooled combustion gas is brought in countercurrent flow with a lean CO 2 absorbent to give a rich absorbent and a CO 2 depleted flue gas; withdrawal lines for withdrawal of rich absorbent and CO 2 depleted flue gas, respectively, from the contact device, the line for withdrawal of CO 2 depleted flue gas being connected to the heat exchangers for heating of the CO 2 depleted flue gas; one or more turbines for expanding the CO 2 depleted flue gas after heating; a flue gas line for releasing the expanded and CO 2 depleted flue gas into the surroundings; an absorbent regenerator wherein the rich absorbent is regenerated; a lean absorbent line for recycling of regenerated absorbent to the absorber; a gas withdrawal line connected to the absorber for withdrawal of CO 2 and steam from the regenerator; and a steam line for introduction of steam into an oil sands reservoir; a heavy oil upgrade facility for upgrading the produced heavy oil from the oil sands; a gasifier for gasification of coal; a char line for withdrawing produced char; a gas withdrawal line for withdrawal of produced gas in the gasifier, the gas withdrawal line being connected to a separator for separation of the gasified products; a heavy hydrocarbons line for withdrawal of a heavy hydrocarbon fraction of the gasified products; a gas line for withdrawal of a gas mainly comprising methane and CO; and a hydrogen line for withdrawing hydrogen from the separator and introducing the hydrogen into the upgrade facility.