F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
F02C 3/20 (2006.01) C10J 1/06 (2006.01) F01K 23/06 (2006.01) F02C 3/30 (2006.01)
Patent
CA 2174245
A highly efficient partial oxidation process with the production of power comprising the steps of producing fuel gas by the partial oxidation of hydrocarbonaceous fuel, cooling said fuel gas at high pressure by quenching in water to produce quenched fuel gas and by indirect heat exchange with BFW to maximize the production of IP and MP steam, cleaning said fuel gas, preheating scrubbing water comprising process condensate and make-up water by direct contact and direct heat exchange with clean fuel gas and using said preheated scrubbing water in the cleaning of said fuel gas, reducing the pressure of said cooled fuel gas stream prior to heating water for fuel gas saturation, cooling the process fuel gas stream in stages and condensing water for use as said scrubbing water, purifying the process fuel gas and saturating it with water, and burning said purified and saturated fuel gas in the combustor of a power-producing gas turbine along with saturated nitrogen to produce exhaust gas with a reduced NOx. In one embodiment, the hot exhaust gas from the gas turbine is passed through an HRSG to superheat the process steam. The superheated process steam is then used as part of the working fluid in an expansion turbine for the production of power. Steam condensate may be converted into high pressure (HP) steam and superheated in the HRSG. The superheated HP steam is then passed through an HP expansion turbine as the working fluid. The power generation steam cycle is optimized to assist in maximizing the process steam which can be used most efficiently in the cycle.
Procédé très efficace d'oxydation partielle avec production d'énergie. Le procédé consiste à produire un gaz combustible par oxydation partielle d'un combustible hydrocarboné (7), à refroidir le gaz combustible sous haute pression par refroidissement dans l'eau (15) afin d'obtenir un gaz combustible refroidi (23), et par échange indirect de chaleur avec de la vapeur de chaudière (31, 61) afin de maximiser la production de vapeur à pression intermédiaire (32) et à moyenne pression (62). Selon un mode de réalisation, le gaz brûlé à température élevée en provenance de la turbine à gaz (76) passe dans un générateur de vapeur à récupération de chaleur (HRSG) dans le but de surchauffer la vapeur utilisée dans le processus. Ensuite, cette vapeur surchauffée est utilisée comme constituant du fluide moteur dans une turbine de détente (211, 185) à production d'énergie. Le cycle de production d'énergie par vapeur est optimisé en vue de faciliter l'obtention d'une quantité maximale de vapeur pouvant être utilisée le plus efficacement dans le cycle.
Jahnke Frederick Charles
Thacker Pradeep Stanley
Wallace Paul Steven
Smart & Biggar
Texaco Development Corporation
LandOfFree
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