초록 ▼

A method for combined cycle electrical power generation comprises utilizing a coal hydrogenator 2 and a reactor 1 for producing from a methane-rich gas a hot crude hydrogen-containing gas which is fed directly (apart from an optional quenching stage) to the coal hydrogenator. The coal hydrogenator p

A method for combined cycle electrical power generation comprises utilizing a coal hydrogenator 2 and a reactor 1 for producing from a methane-rich gas a hot crude hydrogen-containing gas which is fed directly (apart from an optional quenching stage) to the coal hydrogenator. The coal hydrogenator produces gaseous and liquid products which are combusted to drive a gas turbine 5 which drives an electrical generator 6. The hydrogenator also produces char which is combusted in a boiler 10 to form steam to drive a steam turbine 11 which, in turn, drives another electrical generator 12. Such direct use of the hot crude gas avoids having to preheat hydrogen-containing feed to the hydrogenator.

대표청구항 ▼

A method for combined cycle electrical power generation comprising－ (i) introducing a methane-rich gas and at least one of steam and oxygen-containing gas into a reactor, reacting the methane-rich gas at an elevated temperature with the at least one of steam and oxygen-containing gas to form a hot h

A method for combined cycle electrical power generation comprising－ (i) introducing a methane-rich gas and at least one of steam and oxygen-containing gas into a reactor, reacting the methane-rich gas at an elevated temperature with the at least one of steam and oxygen-containing gas to form a hot hydrogen-containing gas; (ii) introducing into a coal hydrogenator coal and at least a portion of the hydrogen-containing gas at an elevated temperature suitable for initiating and maintaining coal hydrogenation reaction, hydrogenating the coal with the hydrogen-containing gas in the hydrogenator to form a char and a first gaseous product; removing the char and removing the first gaseous product from the hydrogenator; (iii) cooling the first gaseous product to form a condensed liquid hydrocarbon product and a remaining gaseous product; separating the liquid hydrocarbon product from the remaining gaseous product; (iv) removing impurities from the remaining gaseous product; (v) feeding at least a portion of the purified remaining gaseous product to the combustion chamber of a gas turbine to form gaseous combustion products to drive the turbine whereby the gas turbine drives a first electrical generator to produce electrical power; (vi) introducing at least some of the char into a boiler and combusting the char therein with air to produce steam to drive a steam turbine whereby the steam turbine drives a second electrical generator to produce electrical power, wherein a portion of the purified remaining gaseous product is separated into a first separated gas, which is a hydrogen-rich gas, and a second separated gas, which comprises methane and carbon monoxide, and wherein, prior to the char being introduced into the boiler, the char is contacted with the first separated hydrogen-rich gas to cause desulphurisation of the char.