摘要:
Disclosed herein is a novel F-T catalyst system suitable for the selective production of light olefins from syngas produced from natural gas (syngas to olefins; STO), which contains an iron-based catalyst and a calcium oxide (CaOx) prepared by a sol-gel process and shows an increased yield of C 2 -C 4 light olefins and improved catalyst stability.
摘要:
The present invention relates to a method of direct synthesis of light hydrocarbons from natural gas and carbon dioxide capable of improving production yield of light hydrocarbons and carbon utilization efficiency through a series of process of preparing synthesis gas with a predetermined molar ratio of carbon monoxide and hydrogen by a combined steam reforming of natural gas and carbon dioxide reforming of methane, performing Fischer-Tropsch reaction of the prepared synthesis gas in the presence of a specific catalyst, and recycling the byproducts of methane and carbon dioxide as the source material of the combined reforming.
摘要:
The present invention relates to a catalyst for synthesizing methanol from synthesis gas and a preparation method thereof, and more specifically to a catalyst for synthesizing methanol from synthesis gas and a preparation method thereof, wherein the catalyst for synthesizing methanol from synthesis gas is a novel catalyst which comprises: Cu-An-Al-based oxides containing CuO, ZnO and Al2O3 in a certain ratio or Cu-Zn-Al-Zr-based oxides containing CuO, ZnO, Al2O3 and ZrO2 in a certain ratio; and a cerium-zirconium oxide support prepared by a sol-gel method. Compared with a conventional methanol synthesis catalyst using Cu-An-Al base alone, the catalyst according to the present invention suppresses the generation of by-products and thus improves the yield of methanol, and thereby can greatly improve the efficiency of methanol purification and carbon conversion.
摘要:
The present invention relates to a method of direct synthesis of light hydrocarbons from natural gas and carbon dioxide capable of improving production yield of light hydrocarbons and carbon utilization efficiency through a series of process of preparing synthesis gas with a predetermined molar ratio of carbon monoxide and hydrogen by a combined steam reforming of natural gas and carbon dioxide reforming of methane, performing Fischer-Tropsch reaction of the prepared synthesis gas in the presence of a specific catalyst, and recycling the byproducts of methane and carbon dioxide as the source material of the combined reforming.
摘要:
The present invention relates to a continuous separation and discharge apparatus and method of solid catalysts and liquid products for Fischer-Tropsch synthesis reactions, and more particularly, to a continuous separation and discharge apparatus and method of solid catalysts and products for Fischer-Tropsch synthesis reactions involving the conversion of synthetic gas into synthetic oil, by which products of the Fischer-Tropsch synthesis including wax, as a long-chain hydrocarbon, can be stably obtained by continuously separating the products from a slurry comprising solid catalyst particles and the products using periodic pulses of a feeding gas and discharging the products through a lower portion of a reactor. Provided is a continuous separation and discharge apparatus of solid catalysts and products for Fischer-Tropsch synthesis reactions including: a level sensing device which is installed at an upper portion of a reactor and detects the slurry-level of reactants; a solid catalyst/ product separation device and a discharge device which are installed at a lower portion of the reactor and separate and discharge liquid products from a mixed slurry in the reactor; and a control unit which receives a signal from the level sensing device to open and close the discharge device, wherein the separation device filters the solid catalysts, and the discharge device continuously discharges the products separated from the solid catalysts through the lower portion of the reactor by the amount of the synthesized products measured by a level sensing device.