High pressure fossil fuel oxy-combustion system with carbon dioxide capture for interface with an energy conversion system

摘要

A combustion system for operational connection to an energy conversion system, the combustion system comprising: (i) combustion means constructed and arranged for selective operation at combustion pressures exceeding atmospheric pressure and comprising a combustor having (a) at least one combustion chamber; (b) a fuel input means constructed and arranged to receive a supply of fuel at a pressure exceeding the selected combustion pressure; (c) an oxygen input means constructed and arranged to receive a supply of an oxygen having a purity of at least 70% and at a pressure exceeding the selected combustion pressure; (d) a carbon dioxide input means constructed and arranged to receive a supply of supercritical carbon dioxide at a pressure exceeding the selected combustion pressure; (e) at least one combustion products outlet means defining a combustor outlet flow path for removal of products of combustion from the combustion chamber and the combustor; and (f) at least one combustion product stream recirculation inlet rneans; (ii) an oxygen delivery means operatively connected to the oxygen input means; (iii) a fuel delivery means operatively connected to the fad input means; (iv) at least a first heat exchanger means constructed and arranged for operational Connection to the energy conversion system, having an input region, a discharge region and at least a first flow passage defining a flow path between the input region and the discharge region for the products of combustion received from the combustor; (v) a combustion exhaust means comprising a flow passage; (vi) a recirculation means operatively connected to the at least one combustion product stream recirculation inlet means and comprising at least one circulation pump; and (vii) a combustion discharge means operatively connected to the discharge region of the first heat exchanger means for removed of the products of combustion and comprising (a) a divider means for division of the product of combustion into a recirculation stream and an exhaust stream; (b) a recirculation stream delivery means operatively connected to the recirculation means; and (c) an exhaust stream delivery means operatively connected to the combustion exhaust means.