The present invention provides a
system and a process for the production of
methane, C2-C100 linear alkanes, C2-C10 olefins, oxygenates,
methanol and combinations thereof, comprising: an oxyfuel
combustor comprising a
combustion gas outlet, and a first fluid entrance; a heat
recovery system; a carbon capturing unit comprising an adsorption column which comprises a
combustion gas inlet in fluid communication with the
combustion gas outlet of the oxyfuel
combustor, and a feed gas inlet; a
desorption column; one or more
methanol synthesis reactors; wherein the adsorption column comprises a base portion and a top portion; the adsorption column extends a height from the base portion to the top portion; the base portion corresponds to one half of the height of the adsorption column; the feed gas inlet and the combustion gas inlet are located in the base portion; and the feed gas inlet is located above the combustion gas inlet in the base portion.