Sosoloid catalyst of methyl alkyl catalyzing burned and its preparation process
A methane catalytic combustion and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of poor activity at low temperature and achieve low combustion temperature , low price, low ignition temperature
Inactive Publication Date: 2005-06-08
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
Tian-Cun Xiao et al reported ZrO in Journalof Molecular Catalysis A: Chemical (2001(175): 111-123) 2 , MgO, Al 2 o 3 In the case of carrier-supported Co catalysts for methane catalytic combustion, Sheng-Fu Ji et al. reported the related research of Co-Mg solid solution catalysts for methane catalytic combustion in Catalysis Letters (2001 (75): 65-71). Both show good catalytic performance, but low temperature activity is still not good
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Embodiment 6
[0019] Embodiment 6: the preparation of catalyst, oven dry and roasting are the same as embodiment 5, make Ce 0.20 co 0.80 o 2 solid solution catalyst. The catalyst in Air / CH 4 =49, the catalyst consumption is 0.2g, and the catalytic reaction performance is as follows under different gas total space velocity conditions:
[0020] temperature(℃)
[0021] Airspeed (h -1 )
[0022] T (转化10％) T (转化90％)
[0023] 5000 265 380
[0024] 10000 280 395
[0025] 15000 285 410
[0026] 20000 310 435
[0027] 30000 315 450
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A solid solution catalyst for the catalytic combustion of methane in air with low combustion temp (395-570 deg.C) is prepared from cerium oxide and cobalt oxide by urea combustion method.
Description
technical field [0001] The invention relates to a catalyst for methane low-temperature catalytic combustion and a preparation method thereof. Background technique [0002] Natural gas is known as a new generation of clean energy that can replace coal and oil due to its abundant reserves, low price, low pollution, and high thermal efficiency. However, the combustion temperature of its main component methane is very high (1600°C), so the combustion efficiency is low, and a small amount of NO will be produced during the combustion process. X and incomplete combustion products, causing environmental pollution. As a new method of energy utilization, catalytic combustion is being extensively studied. Catalytic combustion can reduce the combustion temperature of low-carbon hydrocarbons, reduce the generation of harmful gases, and the reaction conditions are easy to control. At the same time, the lower combustion temperature can also avoid the sintering of the catalyst itself, so...
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IPC IPC(8): B01J23/83
Inventor 丑凌军杨建张兵赵军王嘉欣牛建中李树本
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI