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沥青粘结剂对低阶煤基活性焦制备及性能的影响

LIU Jia-hao, CAO Jun,LI Cheng-fei,YANG Jian-xiao

Coal Processing and Comprehensive Utilization(2022)

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Abstract
以黑龙江鹤岗低阶煤为原料、不同软化点的沥青作为粘结剂进行混捏成型,经炭化和水蒸气活化制备低阶煤基活性焦.实验结果表明:沥青粘结剂添加量的增加会使活性焦的力学性能增强,吸附性能下降;低软化点沥青粘结剂制备活性焦易获得更发达的孔隙结构、高吸附性能,但成型活性焦的力学性能较差;高软化点沥青粘结剂制备的活性焦吸附能力较低,但具有更加优异的力学性能.以低阶煤为原料,软化点180℃的沥青为粘结剂,同时添加量达到15%时,所制备的活性焦比表面积达到536 m2/g,压缩强度为16.6 MPa,并且SO2吸附量达到48 mg/g,NO的吸附量达到14 mg/g.
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