Abstract: Chemical heat pump system 1 includes: endothermic unit 3 that contains a slurry containing a solid product and that absorbs heat supplied from an outside to perform an endothermic reaction at first pressure P1; exothermic unit 2 that contains a slurry containing a solid reactant and that performs an exothermic reaction at a second pressure P2 that is higher than the first pressure P1 to generate heat; gas recovery supply unit 4 that recovers a gas reactant that has been decomposed in endothermic unit 3 and that supplies the gas reactant to exothermic unit 2; and circulation unit 5 that supplies the slurry containing the solid reactant, that has been decomposed in endothermic unit 3, to exothermic unit 2 after pressurizing the slurry from first pressure P1 to second pressure P2, and that supplies the slurry containing the solid product, that has been produced in exothermic unit 2, to endothermic unit 3 after depressurizing the slurry from second pressure P2 to first pressure P1, so as to circulate the slurry b

Abstract: Chemical heat storage system 1 based on an exothermic reaction that produces a solid product from a solid reactant and a gas reactant and an endothermic reaction that decomposes the solid product into the solid reactant and the gas reactant, includes: endothermic unit 3 that contains a slurry containing the solid product and that absorbs heat supplied from the outside to perform the endothermic reaction; exothermic unit 2 that contains a slurry containing the solid reactant and that performs the exothermic reaction to generate heat; and gas recovery supply unit 4 that recovers the gas reactant that has been decomposed in endothermic unit 3 and that supplies the gas reactant to exothermic unit 2.

Abstract: A supported carbon having high surface area, high pore volume containing (i) molybdenum (ii) a metal of non noble Group VIII, (iii) phosphorous, is used for hydrometallization of heavy crude oil and residue. The catalyst contains about 6 to 15 wt % molybdenum as MoO3, about 1 to 6 wt % cobalt or nickel as CoO or NiO and phosphorus as phosphorous oxide. One characteristic of the catalyst is the portion of pores having pore diameter in the range of 200 to 2000 Angstrom of 20 percent or more. The catalyst prepared by chelating agent has higher hydrodesulfurization activity assuming that more dispersed active metals are present on this catalyst. Long run activity studies show that catalyst having only molybdenum supported on activated carbon has good stability with time-on-stream and very high metal retention capacity.

Abstract: A supported carbon having high surface area, high pore volume containing (i) molybdenum (ii) a metal of non noble Group VIII, (iii) phosphorous, is used for hydrometallization of heavy crude oil and residue. The catalyst contains about 6 to 15 wt % molybdenum as MoO3, about 1 to 6 wt % cobalt or nickel as CoO or NiO and phosphorus as phosphorous oxide. One characteristic of the catalyst is the portion of pores having pore diameter in the range of 200 to 2000 Angstrom of 20 percent or more. The catalyst prepared by chelating agent has higher hydrodesulfurization activity assuming that more dispersed active metals are present on this catalyst. Long run activity studies show that catalyst having only molybdenum supported on activated carbon has good stability with time-on-stream and very high metal retention capacity.

Abstract: In a process of hydrocracking heavy oil with a catalyst in petroleum refining, asphaltene contained in heavy oil, and impurities including heavy metals such as nickel and vanadium, are efficiently removed with activated carbon, whereby the reduction in catalyst activity or formation of coke by the impurities can be prevented. The invention provides a hydrocracking catalyst comprising activated carbon extrudate as a carrier activated with steam and having a high distribution of pores having pore sizes in the range of 20 to 200 nm.

Abstract: In a process of hydrocracking heavy oil with a catalyst in petroleum refining, asphaltene contained in heavy oil, and impurities including heavy metals such as nickel and vanadium, are efficiently removed with activated carbon, whereby the reduction in catalyst activity or formation of coke by the impurities can be prevented. The invention provides a hydrocracking catalyst comprising activated carbon extrudate as a carrier activated with steam and having a high distribution of pores having pore sizes in the range of 20 to 200 nm.

Abstract: A process for producing dimethyl ether, which includes dehydrating methanol in vapor phase in the presence of an activated alumina catalyst having an average pore radius of 2.5 nm to 8.0 nm both inclusive and having a sodium oxide content of 0.07 wt % or less. This invention provides a process for producing DME with an improved conversion ratio using a highly active DME-production catalyst.

Abstract: A process for producing dimethyl ether, which includes dehydrating methanol in vapor phase in the presence of an activated alumina catalyst having an average pore radius of 2.5 nm to 8.0 nm both inclusive and having a sodium oxide content of 0.07 wt % or less. This invention provides a process for producing DME with an improved conversion ratio using a highly active DME-production catalyst.

Abstract: In a process of hydrocracking heavy oil with a catalyst in petroleum refining, asphaltene contained in heavy oil, and impurities including heavy metals such as nickel and vanadium, are efficiently removed with activated carbon, whereby the reduction in catalyst activity or formation of coke by the impurities can be prevented. The invention provides a hydrocracking catalyst comprising activated carbon extrudate as a carrier activated with steam and having a high distribution of pores having pore sizes in the range of 20 to 200 nm.

Abstract: A catalyst for the hydrocracking of heavy oils contains iron and active carbon having an MCH conversion rate of 40-80%, a specific surface area of 600-1000 m2/g of, a pore volume of 0.5 to 1.4 cm3/g, 2-50 nanometers' mesopore volume of not less than 60% and an average pore diameter of 3-6 nanometers, the iron being carried on the active carbon in an amount of 1 to 20 wt. % to the active carbon. The hydrocracking process using the catalyst includes a first step of conducting hydrocracking at a temperature within the range of 360-450° C. at a hydrogen partial pressure of 2-14 MPaG and a second step of conducting hydrocracking at a temperature within the range of 400-480° C. at a hydrogen partial pressure of 2-18 MPaG, which can suppress the generation of coke and remove, in a high efficiency, heavy metals such as Ni and V, asphaltene, residual carbon, sulfur and nitrogen from the heavy oils.

Abstract: A process for producing dimethyl ether, which includes dehydrating methanol in vapor phase in the presence of an activated alumina catalyst having an average pore radius of 2.5 nm to 8.0 nm both inclusive and having a sodium oxide content of 0.07 wt % or less. This invention provides a process for producing DME with an improved conversion ratio using a highly active DME-production catalyst.