Delayed coking plant combined heating and power generation

A system comprising:

• a heat exchange system comprising:
• a first heat exchanger operable as a continuous source of heat from a delayed coking plant, the first heat exchanger configured to heat a first fluid stream to produce a heated first fluid stream;
• a second heat exchanger operable as a continuous source of heat from the delayed coking plant, the second heat exchanger configured to heat a second fluid stream to produce a heated second fluid stream, wherein the heated second fluid stream has a lower temperature and a greater quantity of heat than the heated first fluid stream;
• a third heat exchanger operable as a continuous source of heat to the delayed coking plant, the third heat exchanger configured to heat a third fluid stream to produce a heated third fluid stream, wherein the third fluid stream includes the heated first fluid stream and a hot fluid stream, wherein the heated third fluid stream has a lower temperature than the heated first fluid stream;
• and
• a power generation system configured to generate power using heat from the heated second fluid stream and the heated third fluid stream.