摘要:
A method of producing fuel from CO 2 comprising introducing natural gas, steam, and recovered CO 2 to a reformer to produce unshifted syngas characterized by a molar ratio of hydrogen to carbon monoxide of from about 1.7:1 to about 2.5:1; introducing the unshifted syngas to a water gas shift unit to produce a shifted syngas, wherein an amount of CO 2 in the shifted syngas is greater than in the unshifted syngas; separating the CO 2 from the shifted syngas to produce recycle CO 2 and a hydrogen-enriched syngas; recycling the recycle CO 2 to the reformer; introducing the unshifted syngas to a Fischer-Tropsch (FT) unit to produce an FT product, FT water, and FT tail gas, wherein the FT product comprises FT liquids and FT wax; and separating the FT liquids from the FT product to produce a fuel.
摘要:
Diesel fuel composition suitable for use in an internal combustion engine comprising: (a) 2 mass% to 30 mass% of kerosene having a kinematic viscosity at 40°C of 1.5 mm 2 /s or less and a density of 810 kg/m 3 or less; (b) 2 mass% to 20 mass% of Fischer-Tropsch derived base oil having a kinematic viscosity at 40°C of 7.5 mm 2 /s or greater and a density of 790 kg/m 3 or greater; and (c) diesel base fuel. The diesel fuel composition of the present invention provides improved cold flow properties while simultaneously maintaining other properties such as viscosity and density within diesel fuel specification requirements.
摘要翻译:适用于内燃机的柴油燃料组合物,包括:(a)在40℃下的运动粘度为1.5mm 2 / s以下,密度为810kg / m 3以下的2质量%〜30质量%的煤油 ; (b)在40℃下的运动粘度为7.5mm 2 / s以上且密度为790kg / m 3以上的2质量%〜20质量%的费 - 托衍生基油; 和(c)柴油基础燃料。 本发明的柴油燃料组合物提供改进的冷流特性,同时保持柴油燃料规格要求中的其它性质如粘度和密度。
摘要:
The invention provides a method, stage and plant for removing LTFT catalyst fines and/or organometallic catalyst compounds from of LTFT wax, downstream from the LTFT reactor. The method includes at least one stage having the steps of causing a differential pressure across a filter element; causing high mechanical shearing and/or centrifugal forces along and/or away from the surface of the filter on the high pressure side of the filter to cause the particles to be continuously removed from the filter surface; and wherein the differential pressure is selected to be sufficient to force flow of the wax across the filter to cause filtration.
摘要:
The present invention provides a process to prepare paraffins and waxes, the process at least comprising the following steps: (a) providing a Fischer-Tropsch product stream comprising paraffins having from 10 to 300 carbon atoms; (b) subjecting the Fischer-Tropsch product stream of step (a) to a hydrogenation step, thereby obtaining a hydrogenated Fischer-Tropsch product stream comprising 10 to 300 carbon atoms; (c) separating the hydrogenated Fischer-Tropsch product stream of step (b), thereby obtaining at least a fraction comprising 10 to 17 carbon atoms and a fraction comprising 18 to 300 carbon atoms; (d) separating the hydrogenated fraction comprising 18 to 300 carbon atoms of step (c), thereby obtaining one or more first light waxes having a congealing point in the range of 30 to 75°C and a second heavy wax having a congealing point in the range of 75 to 120°C; e) hydrofinishing one or more wax fractions having a congealing point in the range of 30 to 75°C of step (d) thereby obtaining one or more hydrofinished wax fractions having a congealing point in the range of 30 to 75°C.
摘要:
Disclosed herein is a system comprising: a) a separator tank comprising a first inlet, a second inlet, a first outlet, and a second outlet, b) a heat exchanger, and c) a holding tank comprising a third inlet and a third outlet, wherein the separator tank is in fluid communication with the holding tank via a first connector and via a second connector, wherein the first connector is connected to the first outlet of the separator tank and to the third inlet of the holding tank, wherein the second connector is connected to the first inlet of the separator tank and to the third outlet of the holding tank, and wherein the first connector and the second connector are in communication with the heat exchanger.
摘要:
The invention relates to a process for the conversion of a paraffinic feedstock that comprises at least 50 wt% of compounds boiling above 370 °C and which has a paraffin content of at least 60 wt%, an aromatics content of below 1 wt%, a naphthenic content below 2 wt%, a nitrogen content of below 0.1 wt%, and a sulphur content of below 0.1 wt%, the process comprising: a) subjecting the paraffinic feedstock to a hydroprocessing step to obtain an at least partially isomerised feedstock; b) separating the at least partially isomerised feedstock into one or more middle distillate fractions and a first residual fraction, wherein step a) is carried out by contacting the paraffinic feedstock with a first catalyst having hydrocracking and hydroisomerising activity and then with a second catalyst having hydrocracking and hydroisomerising activity, wherein the second catalyst is more active in hydroisomerisation and less active in hydrocracking than the first catalyst.
摘要:
The present invention provides a Fischer-Tropsch derived gas oil having an initial boiling point of at least 175°C and a final boiling point of at most 360°C. In another aspect the present invention provides a functional fluid formulation comprising a Fischer-Tropsch derived gas oil having an initial boiling point of at least 175°C and a final boiling point of at most 360°C.