Device and method for preparing gas by spouting, catalyzing and gasifying straw and coal together in resistance-reducing starting spouted bed
A technology of coal co-catalyzed gas and gas device, which is applied in the manufacture of combustible gas, granular/powder fuel gasification, petroleum industry, etc., can solve the problems of incomplete removal of tar, less catalyst, and more tar.
Inactive Publication Date: 2012-11-07
JIANGSU UNIV
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Problems solved by technology
Adding catalyst directly into the fluidized bed has a certain effect, but there is a lot of tar near the feeding port, and the amount of catalyst at the feeding port is small, so the removal of tar is not complete
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Embodiment Construction
[0047] A specific way of implementing the present invention is as follows.
[0048] figure 1 The gauge air pressure of jet fan 1 in the process is 50kPa, and the standard flow rate can reach 100m 3 . The flow range of air flow meter 2 is 0-150m 3 , steam flow meter 3 flow range is 0-150m 3 . The waste heat steam drum 4 is replaced by a steam generator with a power of 10kW. The volume of the coal silo plus the screw feeding device 5 is 50 kg, and the volume of the straw silo plus the screw feeding device 6 is 10 kg of straw charging volume. The diameter of the column part of the spouted bed 7 is 180mm, the height is 700mm, the diameter of the column part of the cyclone separator 8 is 70mm, and the volume of the ash hopper 9 is 0.5m 3 , The diameter of the wet washing tank 10 is 300mm. There are three-way valve 12 etc. in addition. After the gas is sampled and analyzed, it is emptied or sent into the gas cabinet 11.
[0049] The specific production method is as follows....
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The invention relates to a device and a method for preparing gas by spouting, catalyzing and gasifying straw and coal together in a resistance-reducing starting spouted bed. In the device, the spouted bed can be started without bed resistance, and the straw, the coal, calcium carbonate and water vapor are spouted, catalyzed and gasified together in the started resistance-reducing starting spoutedbed to produce medium calorific value gas without tar oil. The invention organically integrates the advantages of a spouted bed technology, a co-gasification technology and a co-catalysis technology of the water vapor, the coal and the straw and innovates the novel device and the method for preparing the medium calorific value gas with low tar oil content by spouting, catalyzing and gasifying thecoal, the straw, the calcium carbonate and the water vapor in the resistance-reducing starting spouted bed. The gas prepared by the three integrated technologies has the tar oil content 10 mg / m<3> less than the national gas standard, achieves the calorific value about 10-14 MJ / m<3> and can transform 2.5-3 parts by weight of the straw into the medium calorific value gas by consuming 1 part by weight of the coal.
Description
technical field [0001] The invention relates to the field of a device and a method for co-spraying catalytic gasification of straw, coal, water vapor and calcium carbonate in a high-temperature deblocking pipe to deblock and start a spouted bed to produce gas. A device and method for co-spraying catalytic gasification of straw, coal, water vapor and calcium carbonate to produce gas by using a high-temperature deblocking pipe to deblock and start a spouted bed are mainly obtained. In the device of the present invention, the spouted bed can be started without bed resistance, and straw, coal, calcium carbonate, and water vapor can be co-sprayed and catalytically gasified in the spouted bed after starting to produce tar-free medium calorific value gas. Background technique [0002] With the increase of human energy demand and the reduction of fossil fuels, biomass, as a renewable energy source, is becoming a substitute for fossil fuels. The technology of producing gas by gasifi...
Claims
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IPC IPC(8): C10J3/48C10J3/50C10J3/64C10J3/84
CPCY02P20/129
Inventor 刘伟民王立群赵杰文马海乐姜松赵如金
Owner JIANGSU UNIV