Patent ID: 7964025

Claim:
An apparatus for reclamation of carbon dioxide from boiler flue gas as well as for the liquefaction of the reclaimed carbon dioxide for well injection oil recovery, comprising: a boiler for generating high pressure steam and flue gases from the combustion of a fuel source selected from the group consisting of coal, crude oil or flammable gases, the boiler having a flue gas outlet positioned at a top region of the boiler and configured to capture flue gases emitted from the boiler and a steam outlet positioned at the top region of the boiler and configured to capture steam emitted from the boiler; a tower scrubber coupled to the flue gas outlet of the boiler, the tower scrubber comprising packing material configured to remove sulfur dioxides and solid particles from the flue gases emitted from the flue gas outlet; a carbon dioxide reclaim system configured to purify from the flue gases carbon dioxide gas having at least about 98% purity, the reclaim system comprising: a carbon dioxide absorber coupled to the tower scrubber; a heat exchanger coupled to the carbon dioxide absorber, and a regenerator coupled to the heat exchanger and coupled to a reboiler, a steam boiler coupled to the reboiler; a carbon dioxide liquefying system configured to liquefy the carbon dioxide gas from the carbon dioxide reclaim system, the liquefying system comprising: a liquefier coupled to the regenerator; a congealer coupled to the liquefier; and a rectifying tower coupled to the liquefier and coupled to a condenser; a storage tank coupled to the rectifying tower and configured to store liquefied carbon dioxide supplied from the carbon dioxide liquefying system; and a mixing tank coupled to the storage tank and to the steam outlet of the boiler, the mixing tank operable to be coupled to a gas injection tube of an oil well, wherein the mixing tank is configured to mix pressurized steam from the boiler with the liquefied carbon dioxide gas from the storage tank into a proportion that increases recovery of thick crude oil from the oil well.