Fischer Tropsch reactor with integrated organic rankine cycle

摘要

A process for recovering heat uses a product stream from a Fischer Tropsch synthesis reactor as the coolant in the same Fischer Tropsch reactor. This stream is then used as the working fluid in an associated organic Rankine cycle. In this manner, the waste heat from the Fischer Tropsch reactor can be efficiently converted into shaft work within the Fischer Tropsch plant. The Fischer Tropsch fluid can then be recycled into the plant product stream.

主权项

1. A process for the recovery of waste heat comprising:
introducing a stream of an organic liquid coolant into a cold side of a reactor heat exchange system, where the coolant provides cooling of the reactor by vaporization of the coolant into a coolant vapor stream; removing the coolant vapor steam from the cold side of the reactor heat exchange system; introducing the coolant vapor stream into an organic Rankine cycle to recover work and convert the coolant vapor stream into a high pressure liquid coolant; and introducing the high pressure liquid coolant into the organic liquid coolant stream, the organic liquid coolant being derived from a fraction of a hydrocarbon product formed in the reactor.