Natural gas expansion plant
AssigneesEnergieversorgung Leverkusen GmbH, Piller GmbH
InventorsElmar Kueck, Heinz Siefen, Wolf-Ruediger Canders
Life of this patent
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Abstract
For expanding highly pressurized natural gas, use is made of a turbo generator (13) having a heat exchanger (12) connected at its upstream side. Heat supply to the heat exchanger (12) is performed by at least one block-type thermal power station (16) comprising a gas-fired internal combustion engine and a generator. The heat exchanger preheats the gas to be expanded before the gas is supplied to the turbo generator for expansion. Both the block-type thermal power station (16) and the turbo generator (13) generate electric energy which is fed into the power supply network (18).
Claims5
A natural gas expansion plant comprising at least one heat exchanger (12) for preheating highly pressurized natural gas, at least one turbo generator (13) for expanding the natural gas to reach a lower pressure and for generating power from the energy released during said expansions, a means for conducting natural gas from a first heat exchanger (12) to a first turbo generator (13), a power station (16, 16a) having a portion of its waste heat supplied to the first heat exchanger via a waste heat circuit (12),
- the power station (16, 16a) includes a plurality of block-type thermal power stations (16, 16a) each having a gas-fired internal combustion engine and a generator adapted to be individually selectively switched off or run under full-load conditions in digital operation, and said waste heat circuit (19) from the block-type thermal power stations which (16, 16a) is thermally coupled to an external energy consumer or energy generator to discharge a portion of residual heat which is generated in digital operation of the block-type thermal power stations (16, 16a) without external cooling measures.
Dependencies are inferred from the claim text.