Abstract: A CO2 recovery system includes an absorption tower that brings gas containing CO2 into contact with a CO2 absorption solution to remove CO2 from the CO2-containing gas; a regeneration tower that regenerates a CO2-absorbed rich solution; and a compression device that re-uses a lean solution, from which CO2 has been removed in the regeneration tower, in the absorption tower and compresses CO2 in gas emitted from the regeneration tower, wherein the rich solution has a high pressure, the high-pressure rich solution is subjected to gas-liquid separation by a flash drum, the rich solution as a liquid component separated in the flash drum is introduced into the regeneration tower, and high-pressure CO2 gas as a gas component separated in the flash drum is introduced into a compression device having a predetermined compression pressure.

Abstract: Provided is a CO shift catalyst that reforms carbon monoxide (CO) in a gas. The CO shift catalyst includes: an active component including either molybdenum (Mo) or iron (Fe) as a main component, and either nickel (Ni) or ruthenium (Ru) as an accessory component; and a carrier which carries the active component, and includes a composite oxide of two or more kinds of elements selected from the group consisting of titanium (Ti), zirconium (Zr), cerium (Ce), silica (Si), aluminum (Al), and lanthanum (La).

Abstract: Provided is a CO shift catalyst that reforms carbon monoxide (CO) in a gas. The CO shift catalyst includes: an active component including either molybdenum (Mo) or iron (Fe) as a main component, and either nickel (Ni) or ruthenium (Ru) as an accessory component; a promoter component including any one kind of component selected from the group consisting of calcium (Ca), potassium (K), sodium (Na), phosphorus (P), and magnesium (Mg); and a carrier which carries the active component and the promoter component, and includes one or more kinds of oxides of titanium (Ti), zirconium (Zr), and cerium (Ce).

Abstract: A dehydration system has improved membrane performance. The dehydration system includes a dehydrating apparatus 1 comprising, in a dehydrating apparatus body, a water separation membrane module in which a water separation membrane having at least one flow path extending in the up and down direction to cause a liquid 50 to pass through is provided with a liquid inlet at the bottom thereof and a liquid outlet at the top thereof; and a shell 11 defined by the outer surface of the water separation membrane module and the inner wall of the dehydrating apparatus body, wherein water in the liquid permeates the water separation membrane while the liquid rises in the water separation membrane, and moves in the shell, whereby the liquid is dehydrated; a pressure reducing device 13 for reducing the pressure of the shell 11; a pressure device for pressurizing the liquid before the liquid is fed to the water separation membrane module; and a heating device for heating the pressurized liquid.

Abstract: A steam reformer generates reformed gas by a steam-reforming reaction of hydrocarbon gas such as natural gas. A methanol synthesis column and a gasoline synthesis column synthesize gasoline from the reformed gas via methanol and produce a liquid fuel. A superheater superheats a part of low-pressure steam that has been heat-recovered from the reformed gas with a part of middle-pressure steam that has been heat-recovered by the methanol synthesis column or the gasoline synthesis column, and the steam thereby brought into an unsaturated state is supplied to a low-pressure steam turbine.

Abstract: A reforming device according to the present invention has a compressor, a first heat exchanger, a desulfurization device, a reformer, a raw material gas branching line that extracts a compressed natural gas from a downstream side of the desulfurization device with respect to the flow direction of the natural gas and supplies the natural gas to the reformer, and a flue gas discharging line that discharges a flue gas generated in the reformer, wherein the first heat exchanger is provided in the flue gas discharging line, and the flue gas is used as a heating medium of the compressed natural gas.

Abstract: A drainage treatment system 16 of the invention is a drainage treatment system that treats drainage generated when a gasified gas 33 is produced by a coal gasification furnace 12 and is purified by a gas purification device 14, and includes drainage treatment lines L11 to L15 which respectively treat slag drainage, venturi drainage, and stripper drainage generated when the gasified gas 33 is produced and the gasified gas 33 is cleaned and drainage treatment apparatuses 101A to 101E which treat treatment target materials in the drainages discharged from the drainage treatment lines L11 to L15. Accordingly, the drainages of the drainage treatment lines L11 to L15 are respectively and individually treated in response to the treatment target materials contained in the drainages without mixing the drainages of the drainage treatment lines L11 to L15.

Abstract: A system or method for producing gasoline from natural gas can be particularly useful in a location which is a natural gas-producing region, but in which it is difficult to obtain water suitable for use in steam reforming, for example, in a desert or at sea. A system for producing gasoline from natural gas via methanol according to the present invention includes: a steam reformer 20 for steam-reforming natural gas to produce reformed gas; a methanol synthesis apparatus 30 for synthesizing methanol from the reformed gas; and a gasoline synthesis apparatus 50 for synthesizing gasoline from the methanol, water being produced in the gasoline synthesis apparatus 50 is reused for the steam reforming in the steam reformer 20.

Abstract: Provided is a CO2 recovery system including: a high-pressure absorption tower 13 that removes CO2 from high-pressure gas 11; a high-pressure regeneration tower 15 that releases a portion of CO2 from a rich solution 14 introduced from the high-pressure absorption tower to obtain a semi-lean solution 19; a first liquid feed line that feeds the semi-lean solution to the high-pressure absorption tower; a branch line that branches a portion of the semi-lean solution fed from a liquid feed line; and a flash drum 21 that flashes the semi-lean solution.

Abstract: A CO shift reaction apparatus 11 according to the present invention includes: adiabatic reactors 31A to 31C, each having CO shift catalyst layers 35A to 35C filled with a CO shift catalyst 34 which reforms CO in gasification gas 15; gas supply lines 111 to 115 which supply the gasification gas 15 to the adiabatic reactors 31A to 31C; first gas flow rate control units 32A and 32B which adjust the amounts of gas supplied to the adiabatic reactors 31A to 31C; gas discharge lines 121 to 125 which discharge processing gas; and second gas flow rate control unit 33A and 33B which adjust flow rates of processing gas 38A-1, 38A-2, 38B-1, and 38B-2.

Abstract: A CO shift reaction apparatus is configured to suppress degradation of catalytic activity of a CO shift catalyst containing molybdenum and prolong the life of the catalyst. A CO shift reaction method uses the CO shift reaction apparatus. The CO shift reaction apparatus is configured to reform carbon monoxide contained in gas and includes a CO shift catalyst containing molybdenum; a reactor at least comprising: a gas inlet for introducing gas; a CO shift catalyst layer filled with the CO shift catalyst and through which the introduced gas passes; and a gas outlet for discharging the gas which has passed through the CO shift catalyst layer; and cooling means configured to cool the CO shift catalyst layer.

Abstract: The present invention includes a dehydration method comprising the steps of providing a distilled process-target fluid to a water separation membrane device via a heat exchanger; separating the process-target fluid into a dehydrated product and water by using the water separation membrane device; detecting a temperature of any one of the water separation membrane device and the process-target fluid supplied to the water separation membrane device by using a temperature monitoring device; and controlling the temperature of the process-target fluid so that the temperature of the distilled process-target fluid being maintained at a temperature higher than the condensation temperature of the distillate by 5 to 10° C. by using a temperature adjustment device provided in the water separation membrane device.

Abstract: The present invention includes a dehydration method comprising the steps of providing a distilled process-target fluid to a water separation membrane device via a heat exchanger; separating the process-target fluid into a dehydrated product and water by using the water separation membrane device; detecting a temperature of any one of the water separation membrane device and the process-target fluid supplied to the water separation membrane device by using a temperature monitoring device; and controlling the temperature of the process-target fluid so that the temperature of the distilled process-target fluid being maintained at a temperature higher than the condensation temperature of the distillate by 5 to 10° C. by using a temperature adjustment device provided in the water separation membrane device.

Abstract: A dehydrating system using multiple water separation membranes aims to prevent damage to the water separation membrane units and also to take appropriate measures against decrease in water permeation rate of the water separation membranes. Provided is a dehydrating system (100) for removing water from a target fluid, including at least two water separation membrane units (1, 2, 3) connected in series in a flow direction of the target fluid; two or more heat exchangers (11, 21, 31) respectively provided in front of the water separation membrane units (1, 2, 3), each of the heat exchangers (11, 21, 31) raising a temperature of the target fluid to a temperature which is lower than a boiling point of the target fluid but close to the boiling point.

Abstract: The present invention includes a dehydration method comprising the steps of providing a distilled process-target fluid to a water separation membrane device via a heat exchanger; separating the process-target fluid into a dehydrated product and water by using the water separation membrane device; detecting a temperature of any one of the water separation membrane device and the process-target fluid supplied to the water separation membrane device by using a temperature monitoring device; and controlling the temperature of the process-target fluid so that the temperature of the distilled process-target fluid being maintained at a temperature higher than the condensation temperature of the distillate by 5 to 10° C. by using a temperature adjustment device provided in the water separation membrane device.

Abstract: The present invention includes: a water separation membrane device 2 that separates a process-target fluid into a dehydrated product and water; and a temperature monitoring device 3 for the water separation membrane device 2. The temperature monitoring device 3 detects a temperature. Further, a temperature adjustment device 4 is provided in a previous stage of the water separation membrane device 2. The temperature adjustment device 4 controls a temperature of the process-target fluid on the basis of the temperature detected by the temperature adjustment device 3 to thereby optimize an amount of water permeation in a separation process in the water separation membrane device 2.

Abstract: Provided is a dehydrator that requires no excessively large apparatus structure and achieves cost-saving while maintaining suction efficiency at a desired level by use of suction means. A dehydrator 100 for separating water from a target liquid 13 includes at least two water separation membrane units 1a and 1b which are provided in series in a flow direction of the target liquid 13. The water separation membrane unit 1a on an upstream side out of the water separation membrane units 1a and 1b is connected to suction means 7 for sucking a gas phase containing water through one condenser 4, and the one condenser 4 condenses water in the gas phase and thereby separates the water. The gas phase sucked by the suction means 7 from the one condenser 4 is transferred to at least one downstream condenser 8 provided downstream of the one condenser 4, and the downstream condenser 8 condenses water in the gas phase and thereby separates the water.

Abstract: There is provided a method for transporting a fluid, in which even if the fluid is transported for a long period of time, dehydration after transportation is not needed, and the transported fluid can be used immediately after transportation. Specifically, there is provided a method for transporting a fluid, comprising steps of: dehydrating some of the transportation fluid during transportation by using a dehydration system comprising a separation membrane through which water permeates, and returning the dehydrated fluid to the transportation fluid so as to keep water content in the transportation fluid in a fixed range.

Abstract: A dehydrating system is designed to maintain the availability of a plant having the dehydrating system using a water separation membrane by allowing a water separation membrane unit to be replaced while the plant is in operation. The dehydrating system comprises at least two water separation membrane units in use arranged parallel to the direction of flow of a fluid to be processed, is configured so that at least one spare water separation membrane unit can be installed parallel to the direction of flow of the fluid to be processed with respect to the at least two water separation membrane units, having monitoring devices for the product fluid to be taken out, and maintains the properties of the product fluid by operating the spare water separation membrane unit depending on the properties of the product fluid monitored by the monitoring devices.

Abstract: Provided are a dehydrating system and a dehydrating method which achieve improvement in a membrane performance. The dehydrating system includes a first preheater 3a; multiple dehydrating apparatuses 1a, 1b and 1c which are connected in series downstream of the preheater and which are configured to remove water from an organic aqueous solution; and returning means 6 for returning a part of the organic aqueous solution having passed through one or more of the dehydrating apparatuses to the dehydrating apparatuses or the dehydrating apparatus upstream of the dehydrating apparatuses.