Patent ID: 8076121

Claim:
An integrated process combining hydrocarbonaceous conversion with a photobiofuels process that utilizes CO 2 produced from said hydrocarbonaceous conversion to support photosynthesis, the process comprising the steps of: a) converting at least one hydrocarbonaceous asset to generate a first super-atmospheric pressure CO 2 -containing gas, wherein said at least one hydrocarbonaceous asset is selected from the group consisting of natural gas, methane, coal, petroleum, petroleum coke, tar sands, bitumen, oil emulsions, oils shale, shale oil, waste plastics, waste tires, municipal waste, and combinations thereof; b) absorbing at least a portion of the CO 2 from the first super-atmospheric pressure CO 2 -containing gas into an absorption liquid, the absorbing being done at a first temperature; c) desorbing at least a portion of the absorbed CO 2 at a second temperature to form a second super-atmospheric pressure CO 2 -containing gas, wherein the second temperature is higher than the first temperature, and the concentration of CO 2 in the second super-atmospheric pressure CO 2 -containing gas is higher than the concentration of CO 2 in the first super-atmospheric pressure CO 2 -containing gas; d) providing at least a portion of the CO 2 in the second super-atmospheric pressure CO 2 -containing gas to support algal and/or diatomaceous photosynthesis in a photobiofuels process, wherein at least a portion of the CO 2 is produced at night; e) storing at least a portion of the second super-atmospheric pressure CO 2 -containing gas produced at night in containers of a type selected from the group consisting of aboveground gas tanks, underground salt domes, and combinations thereof; f) recovering, during daylight hours, at least a portion the stored super-atmospheric pressure CO 2 -containing gas; and g) providing at least a portion of the CO 2 in the recovered second super-atmospheric pressure CO 2 -containing gas to support photosynthesis in the photobiofuels process.