초록 ▼

A method for controlling an integrated cryogenic air separation unit (ASU)/gas turbine system which maintains peak power output in spite of ambient temperature variations. The ratio of air flow to the ASU from a source of supplemental air and a turbine compressor is adjusted to compensate for change

A method for controlling an integrated cryogenic air separation unit (ASU)/gas turbine system which maintains peak power output in spite of ambient temperature variations. The ratio of air flow to the ASU from a source of supplemental air and a turbine compressor is adjusted to compensate for changes in ambient air temperature and to maintain air flow to the ASU at a level which enables production of the product, a fuel stream is controlled to maintain gaseous output from a combustor at a maximum practical temperature and a flow ratio of waste nitrogen and fuel fed to the combustor is maintained substantially constant.

대표청구항 ▼

[ I claim:] [1.] A method for controlling an integrated cryogenic air separation unit (ASU)/gas turbine system, said gas turbine system including a turbine compressor for receiving a flow of feed air, a combustor and a turbine expander receiving a gaseous output from the combustor, said ASU receivin

[ I claim:] [1.] A method for controlling an integrated cryogenic air separation unit (ASU)/gas turbine system, said gas turbine system including a turbine compressor for receiving a flow of feed air, a combustor and a turbine expander receiving a gaseous output from the combustor, said ASU receiving a flow of feed air from both said turbine compressor and a source of supplemental air, and providing a product stream and a waste nitrogen stream, said method comprising the steps of:(a) adjusting a ratio of air flow to said ASU from said source of supplemental air and said turbine compressor, to compensate for changes in ambient air temperature and to maintain air flow to said ASU at a level which enables production of said product;(b) providing a first feed of a fuel stream to said combustor;(c) providing a second feed of said waste nitrogen stream to said combustor; and(d) controlling said first feed of said fuel stream to maintain said gaseous output from said combustor at a maximum temperature that is consistent with maintaining maximum power output from said gas turbine system, while maintaining substantially constant a ratio of said second feed and first feed.