POWER GENERATION FROM WASTE HEAT IN INTEGRATED HYDROCRACKING AND DIESEL HYDROTREATING FACILITIES

摘要

A power generation system includes a heating fluid circuit thermally coupled to multiple heat sources from at least an integrated hydrocracking plant and diesel hydro-treating plant of a petrochemical refining system. A first subset of the heat sources includes diesel hydro-treating plant heat exchangers coupled to streams in the diesel hydro-treating plant. A second subset of the heat sources includes hydrocracking plant heat exchangers coupled to streams in the hydrocracking plant. The heat exchangers are connected to a power generation system that includes an organic Rankine cycle (ORC) including a working fluid that is thermally coupled to the heating fluid circuit to heat the working fluid, an expander configured to generate electrical power from the heated first working fluid, and a control system configured to activate a set of control valves to selectively thermally couple the heating fluid circuit to at least a portion of the heat sources.

主权项

1. A power generation system comprising:
a heating fluid circuit thermally coupled to a plurality of heat sources from a plurality of sub-units of a petrochemical refining system, wherein the plurality of sub-units comprises a hydrocracking plant and a diesel hydro-treating plant,
wherein a first subset of the plurality of heat sources comprises a plurality of diesel hydro-treating plant heat exchangers coupled to streams in the diesel hydro-treating plant,wherein a second subset of the plurality of heat sources comprises a plurality of hydrocracking plant heat exchangers coupled to streams in the hydrocracking plant; a first power generation system that comprises an organic Rankine cycle (ORC), the ORC comprising (i) a working fluid that is thermally coupled to the heating fluid circuit to heat the working fluid, and (ii) an expander configured to generate electrical power from the heated first working fluid; and a control system configured to activate a set of control valves to selectively thermally couple the heating fluid circuit to at least a portion of the plurality of heat sources.