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Catalytic conversion agent of tar in gas for biomass boiler

A biomass boiler and catalytic conversion technology, applied in the manufacture of combustible gas, petroleum industry, bulk chemical production, etc.

Inactive Publication Date: 2013-04-17
广州金安源节能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, biomass tar is the Achilles' heel in the popularization and application of biomass gasification technology.

Method used

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  • Catalytic conversion agent of tar in gas for biomass boiler

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: 50 grams of dolomite powder and 46 grams of attapulgite powder, 1 gram of Ni (NO3) 6H2O, 1 gram of Fe3O4, 0.2 gram of Ce (NO3) 3 6H2O, 0.1 gram of Na2CO3, 0.3 gram of K2CO3, 0.5 gram Mix NaCl and 0.5 g KCl thoroughly, then calcinate at 600°C for 1 hour, then cool naturally, then add 0.1 g KNO3, 0.1 g NaOH, 0.2 g KOH to evenly disperse to prepare the catalyst. Then, according to the addition amount of 5 / 10000, the above-mentioned catalyst is mixed into the biomass raw material and ignited and cracked.

Embodiment 2

[0025] Embodiment 2: 50 grams of dolomite powder and 46 grams of attapulgite powder, 1 gram of Ni (NO3) 6H2O, 1 gram of Fe3O4, 0.2 gram of Ce (NO3) 3 6H2O, 0.1 gram of Na2CO3, 0.3 gram of K2CO3, 0.5 gram Mix NaCl and 0.5 g KCl thoroughly, then calcinate at 600°C for 1 hour, then cool naturally, then add 0.1 g KNO3, 0.1 g NaOH, 0.2 g KOH to evenly disperse to prepare the catalyst. Then, according to the addition amount of 1 / 10000, the above-mentioned catalyst is mixed into the biomass raw material and ignited and cracked.

Embodiment 3

[0026] Embodiment 3: 70 grams of dolomite powder and 26 grams of attapulgite powder, 0.5 gram of Ni (NO3) 6H2O, 0.1 gram of Fe3O4, 0.5 gram of Ce (NO3) 3 6H2O, 0.5 gram of Na2CO3, 0.5 gram of K2CO3, 0.5 gram of Mix NaCl and 0.5 g KCL thoroughly, then calcinate at 600°C for 1 hour, cool naturally, then add 0.6 g KNO3, 0.1 g NaOH, and 0.2 g KOH to evenly disperse to prepare the catalyst. Then, according to the addition amount of 5 / 10000, the above-mentioned catalyst is mixed into the biomass raw material and ignited and cracked.

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Abstract

The invention discloses a catalytic conversion agent of tar in gas for a biomass boiler, which consists of the following ingredients by weight percent: 0.1% to 0.3% of Na2CO3, 0.1% to 0.3% of K2CO3, 0.1% to 1% of Fe3O4, 0.5% to 0.8% of NaCl, 0.5% to 0.8% of KCl, 0.3% to 0.5% of KOH, 0.3% to 0.5% of NaOH, 0.1 to 1% of Ni(NO3)2 6H2O, 0.1 to 1% of KNO3, 0.1 to 0.5% of Ce(NO3)3 6H2O, 20% to 46% of dry attapulgite powder and 46% to 75% of dry dolomite powder, wherein the dry dolomite powder is the dry powder with the grain size not less than 325 meshes, the water content less than 1% and the CaCO3 / MgCO3 ratio ranging from 1 to 1.5, and the dry attapulgite powder has the grain size not less than 325 meshes, the water content is less than 1%, the content of MgO is not less than 23% and the content of SiO2 is not more than 56%, and the sum of the above ingredients is 100%. By using the catalyst, tar in biomass gasified gas can be converted into combustible small molecules, so as to reduce the hazard caused by tar remarkably.

Description

technical field [0001] The invention relates to a preparation method of a catalytic conversion agent for tar in gas used in a biomass boiler, in particular to a preparation method for converting tar in a biomass gasification process into a combustible gas catalyst, and belongs to the field of renewable energy. Background technique [0002] Biomass as a renewable energy has attracted people's attention, and biomass gasification technology is one of the main technologies for the utilization of biomass renewable energy. Biomass gasification gas contains 1.0-10.0% tar, which is difficult to be burned and utilized together with gas at low temperature, and the waste is serious; tar condenses into liquid at low temperature, and is easy to combine with water and carbon particles, etc., blocking gas transmission Pipes, stuck valves, corroded metals; tar is difficult to burn completely, and produces particles such as carbon black, which seriously damages gas utilization equipment, suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/25C10J3/64
CPCY02P20/52
Inventor 尹荔松植伯均植远麟安华刚幸芦笙
Owner 广州金安源节能科技股份有限公司