초록 ▼

A method of generating energy which comprises utilizing relatively lower temperature available heat to effect partial distillation of at least portion of a multicomponent working fluid stream at an intermediate pressure to generate working fluid fractions of differing compositions. The fractions are

A method of generating energy which comprises utilizing relatively lower temperature available heat to effect partial distillation of at least portion of a multicomponent working fluid stream at an intermediate pressure to generate working fluid fractions of differing compositions. The fractions are used to produce at least one main rich solution which is relatively enriched with respect to the lower boiling component, and to produce at least one lean solution which is relatively improverished with respect to the lower boiling component. The pressure of the main rich solution is increased whereafter it is evaporated to produce a charged gaseous main working fluid. The main working fluid is expanded to a low pressure level to release energy. The spent low pressure level working fluid is condensed in a main absorption stage by dissolving with cooling in the lean solution to regenerate an initial working fluid for reuse.

대표청구항 ▼

A method of generating energy, which comprises: (a) subjecting at least a portion of an initial multicomponent working fluid stream having an initial composition of lower and higher boiling components, to patial distillation at an intermediate pressure in a distillation system to distil or evaporate

A method of generating energy, which comprises: (a) subjecting at least a portion of an initial multicomponent working fluid stream having an initial composition of lower and higher boiling components, to patial distillation at an intermediate pressure in a distillation system to distil or evaporate only part of the stream subjected to said distillation and thus generate an enriched vapor fraction which is enriched with a lower boiling component relatively to a main rich solution; (b) mixing the enriched vapor fraction with part of the initial working fluid stream and absorbing it therein to produce at least one such main rich solution which is enriched relatively to the initial working fluid stream with respect to a lower temperature boiling component, and using a remaining part of the initial working fluid stream as at least one lean solution which is impoverished relatively to the main rich solution with respect to a lower temperature boiling component; (c) increasing the pressure of the main rich solution to a charged high pressure level and evaporating the main rich solution to produce a charged gaseous main working fluid; (d) expanding the charged gaseous main working fluid to a spent low pressure level to transform its energy into usable form; and (e) cooling and condensing the spent main working fluid in a main absorption stage by dissolving it in the lean solution at a pressure lower than the intermediate pressure to regenerate the initial working fluid.