Patent ID: 9513051
Filing Date: 2016-12-06
CPC Classification: C10G,F25J

Claim Text:
1. A hydrocarbon recovery apparatus for recovering hydrocarbon compounds from first gaseous by-products discharged from an FT synthesis reactor for producing hydrocarbon compounds by the Fisher-Tropsch synthesis reaction, the apparatus comprising: a heat exchanger provided at the upstream of a feedstock gas inlet port of the FT synthesis reactor; a first gas-liquid separator configured to separate the first gaseous by-products discharged from the top of the FT synthesis reactor into a liquid component and second gaseous by-products; a pressurizing device configured to pressurize the second gaseous by-products so that a pressure value P3 of the pressurized second gaseous by-products satisfies P1+0.5MPa≦P3≦P1+5.0 MPa with respect to a pressure value P1 of the first gaseous by-products; a cooler configured to cool down the pressurized second gaseous by-products to liquefied hydrocarbon compounds from the cooled second gaseous by-products; a second gas-liquid separator configured to separate a liquid component including the liquefied hydrocarbon compounds from the cooled second gaseous by-products by the cooler; and a recycle line for introducing at least a portion of the remaining gaseous by-products which is separated the liquid component from the second gaseous by-products in the second gas-liquid separator into the feedstock gas inlet port of the FT synthesis reactor through the heat exchanger as a feedstock gas, wherein, the first gaseous by-products discharged from the top of the FT synthesis reactor are passed through the heat exchanger and are introduced into the first gas-liquid separator, and the recycle line is provided with a pressure adjustor for adjusting the pressure of the remaining gaseous by-products to the internal pressure of the feedstock inlet port.