摘要:
A boiler system including an electric power generation system having a boiler 1, a steam turbine 23 for generating electric power by steams which received heat at a boiler, a condenser 24 provided at the downstream thereof for condensing the steams, and a heater 26 for heating condensed water by steams extracted from the steam turbine and, further, a CO 2 capture system of sorbing and capturing a CO 2 gas in an exhausted gas exhausted from the boiler by using a solid CO 2 sorbent, and a chimney 7 of exhausting an exhaust gas in the CO 2 capture system after recovery of CO 2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO 2 capture system.
摘要:
A method of treatment for decomposing fluorine compounds, comprising the step of contacting a gas flow containing said fluorine compounds, which comprises fluorine as a halogen element, and any of the elements carbon, nitrogen, and sulphur as a compound with said fluorine, with a fluorine compound-decomposition catalyst in the presence of steam at a temperature in the range of approximately 200 to 800°C to hydrolyse the fluorine compound in said gas flow, wherein said gas flow containing said fluorine compounds is contacted with a catalyst comprising Aℓ to convert said fluorine compounds to hydrogen fluoride.
摘要:
A method for treating a gas flow containing organohalogen compounds comprising the steps of contacting the gas flow with catalyst at a temperature below 500 °C in the presence of an effective amount of steam, wherein the catalyst contains titania, tungsten oxide, and silica, an atomic ratio of Ti and w is in the range of 20 ∼ 95 mol % Ti and 80 ∼ 5 mol % W, and the amount of silica to titania is in the range of 0.5 ∼ 15 wt. %. In accordance with the present invention, the organohalogen compound can be decomposed effectively to carbon monoxide, carbon dioxide, and hydrogen halide. The catalyst of the present invention also has s superior durability.
摘要:
A boiler system including an electric power generation system having a boiler 1, a steam turbine 23 for generating electric power by steams which received heat at a boiler, a condenser 24 provided at the downstream thereof for condensing the steams, and a heater 26 for heating condensed water by steams extracted from the steam turbine and, further, a CO 2 capture system of sorbing and capturing a CO 2 gas in an exhausted gas exhausted from the boiler by using a solid CO 2 sorbent, and a chimney 7 of exhausting an exhaust gas in the CO 2 capture system after recovery of CO 2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO 2 capture system.
摘要:
A CO 2 sorbent capable of efficiently sorbing carbon dioxide is provided. A CO 2 sorbent for sorbing and separating carbon dioxide from a gas containing carbon dioxide contains a Ce oxide and having an average pore size of 60 Å or less.
摘要:
A method of decomposing fluorine compounds, wherein a gas flow containing said fluorine compounds is brought into contact with a catalyst in the presence of steam at a temperature in the range of 200 to 800°C to decompose the fluorine compounds to hydrogen fluoride, wherein
said fluorine compounds comprise a compound of fluorine and carbon, a compound of fluorine, carbon and hydrogen, a compound of fluorine, carbon, hydrogen and oxygen, a compound of fluorine and nitrogen and/or a compound of fluorine and sulphur, and said catalyst contains aluminium oxide and at least one of the elements Ti, Fe, Sn, Co, Zr, Ce, Si and Pt; said Ti, Fe, Sn, Co, Zr, Ce and Si being in the form of an oxide or of a complex compound with Al.
摘要:
A CO 2 sorbent capable of efficiently sorbing carbon dioxide is provided. A CO 2 sorbent for sorbing and separating carbon dioxide from a gas containing carbon dioxide contains a Ce oxide and having an average pore size of 60 Å or less.
摘要:
A carbon dioxide recovery system is provided, in which, a filling rate of the carbon dioxide sorbent in the container indicated by f [%] is positive and larger than or equal to the value obtained by the following expression of 100 × (p/(RT)) × (x-C) / (a × (100 + x/r - 100 × x/ (rC) - x) + (p/ (RT)) × (x-C)), with respect to the effective molar quantity of the captured carbon dioxide per 1 L of the carbon dioxide sorbent (= a) of the carbon dioxide sorbent to be used, wherein a demanded concentration of recovered carbon dioxide is indicated by x [%], and an amount of the captured gases other than carbon dioxide is indicated by r, and a concentration of dried carbon dioxide in a carbon dioxide-containing gas is indicated by C [%], and a total pressure of the carbon dioxide sorbent occurring when carbon dioxide is captured is indicated by p [Pa].