Hydrocarbon production apparatus and hydrocarbon production process

摘要

The hydrocarbon production apparatus is provided with a gas-liquid separator for cooling gaseous state hydrocarbons drawn out from a gas phase portion of a reactor for the Fischer-Tropsch synthesis reaction and liquefying a portion of the hydrocarbons. A light liquid hydrocarbon supply line for supplying light hydrocarbons is disposed between a downstream side line which is downstream from the last stage of a gas-liquid separating unit of the gas-liquid separator, and an upstream side line which is upstream from the last stage of the gas-liquid separating unit of the gas-liquid separator, wherein the downstream side line is a liquid hydrocarbon line on the downstream side through which the light hydrocarbons having cloud points lower than the temperature at an outlet of a cooler in the last stage of the gas-liquid separating unit are flowed.

主权项

1. A hydrocarbon production apparatus which retains internally slurry containing catalyst particles and liquid hydrocarbons to produce hydrocarbons by using a slurry bubble column reactor having a gas phase portion at an upper part of the slurry according to the Fischer-Tropsch synthesis reaction, the hydrocarbon production apparatus comprising:
a gas-liquid separator having a plurality of gas-liquid separating units for cooling hydrocarbons which have been drawn out from the gas phase portion of the reactor and are in a gaseous state under conditions inside the reactor, thereby liquefying a portion of the hydrocarbons to conduct gas-liquid separation, wherein each of the plurality of gas-liquid separating units is provided with: a cooler; a gas-liquid separation vessel; a downstream side line which is downstream from the last stage of the gas-liquid separating unit of the gas-liquid separator, wherein a light liquid hydrocarbon line on the downstream side therein which light liquid hydrocarbons having cloud points lower than a temperature at an outlet of the cooler in the last stage of the gas-liquid separating unit are flowed therein; an upstream side line which is upstream from the last stage of the gas-liquid separating unit of the gas-liquid separator; and a light liquid hydrocarbon supply line which is disposed between the downstream side line and the upstream side line, and which supplies the light liquid hydrocarbons inside the light liquid hydrocarbon line on the downstream side to the upstream side line.