The present application is directed towards a method for performing a closed thermochemical and thermodynamic (chemo/thermodynamic) work-producing cycle having improved efficiency, wherein the chemo/thermodynamic work-producing cycle includes a first work-producing half-cycle and a second heat-producing half-cycle, the first work-producing half-cycle includes an endothermic reaction, and the second heat-producing half-cycle includes an exothermic reaction.

A method for co-generating electricity in a process plant using feedwater, where the process plant is integrated with a thermal power generator, is provided. The method includes obtaining a pressurized stream of hot feedwater from a feedwater generation unit of the process plant; compressing the pressurized stream of hot feedwater by pumping and splitting the pressurized stream of hot feedwater to obtain a first stream of feedwater and a second stream of feedwater; routing the second stream of feedwater to the thermal power generator; cooling the second stream of feedwater against a process fluid that is used in the thermal power generator to generate a heat in the thermal power generator and to obtain a cooled second stream of feedwater; and co-generating the electricity, using the thermal power generator integrated with the process plant, using the heat.

The present application relates to systems and methods for applying open cycle and closed cycle valved cell heat engines to Bland/Ewing (B/E) chemo-thermodynamic cycles. The application proposes several new embodiments of a closed cycle valved cell (CCVC) heat engine, including means to create a fully-regenerated isochorically-heated CCVC heat engine. The application further relates to the application of such a heat engine to B/E chemo-thermodynamic half-cycles.

An exemplary system may be configured to provide steam. Exemplary systems may comprise a water source in fluid communication with a pump. The pump may be in fluid communication with a first heat exchanger, which may be in fluid communication with a power generator, which may be a turbine. The power generator may be in fluid communication with a second heat exchanger. An outlet of the second heat exchanger may be in fluid communication with a reactor system.