The hydroxypyridine ionic liquids were synthesized.The absorbance capacity of 1,8-Diazabicyclo [5.4.0] undec-7-ene (DBU) and [P4444][3-Op] mixed absorption solvent to CO2 was investigated.Experimental results showed that the absorption capacity of the hydroxypyridine ionic liquids [P4444][3-Op] by the reaction of tetrabutylphosphonium hydroxide and 3-hydroxypyridine was better,whose absorption capacity could be achieved to 1.06mol CO2/mol IL.The absorption capacity of complex solution can be achieved to 1.2mol CO2/mol IL,which improved the absorptive capacity of ionic liquids.
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基金资助
山西省煤基重点科技攻关项目(MD2014-09)
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