| 摘要 |
The invention relates to a process for continuously converting carbonaceous material contained in one or more feedstocks into a liquid hydrocarbon product, said feedstocks including the carbonaceous material being in a feed mixture including one or more fluids, said fluids including water, the process comprising: converting at least part of the carbonaceous material by pressurising the feed mixture to an operational pressure in the range 150-400 bar, heating the feed mixture to an operational temperature in the range 300-450° C., and maintaining said pressurized and heated feed mixture in the desired pressure and temperature ranges in a reaction zone for a predefined time; cooling the feed mixture to a temperature in the range 25-200° C. and expanding the feed mixture to a pressure in the range of 1-70 bar, thereby causing the carbonaceous material to be converted to a liquid hydrocarbon product; and separating from the converted feed mixture a fraction comprising liquid hydrocarbon product; where prior to the pressurisation and heating of the feed mixture the system has been brought to an operational state by filling the system with a fluid while the system being at a temperature and a pressure below the operational temperature and pressure, and subsequently heating and pressurizing the fluid to the operational conditions at a predetermined heating and pressurisation rate, where the pressure is constantly kept at a level above the saturation pressure for the fluid at a given temperature; and where upon reaching the operational temperature and pressure the fluid inflow to the pressurisation is terminated and the feed mixture inflow to the pressurisation is initiated. |
