Power generation from waste heat in integrated crude oil hydrocracking and aromatic facilities

摘要

The power generation system includes two heated fluid circuits coupled from a plurality of subunits of the petrochemical refining system to a plurality of heat sources. Subunits include integrated diesel hydroprocessing plants and aromatic plants. The first subset and the second subset of heat sources respectively comprise a diesel hydroprocessing plant heat exchanger coupled to the flow in the diesel hydroprocessing plant and an aromatic plant heat exchanger coupled to the flow in the aromatic plant, respectively. Including. The power generation system includes an organic Rankine cycle (ORC). An organic Rankine cycle (ORC) includes the working fluid thermally coupled to two heated fluid circuits to heat the working fluid and an expander that generates electrical power from the heated working fluid. The power generation system further includes a control system that operates a set of control valves to selectively thermally couple each heated fluid circuit to at least a portion of the plurality of heat sources.