采用共沉淀法制备复合氧化物MxOy-Al2O3(MxOy=CeO2,ZrO2,SiO2,TiO2)催化剂,同时用XRD、SEM、TPD和FT-IR等对复合氧化物的晶相结构、酸种类、酸量以及热稳定性等进行了表征.结果表明,复合氧化物MxOy-Al2O3对生物质油具有较好的催化裂化的反应活性,其中ZrO2-Al2O3有较好的裂化反应活性和选择性,裂化反应产物分布中相对分子量小于100的占70.72％;SiO2-Al2O3表现出较好的脱氧率,裂解油中含氧率为17.72％,比原料油下降了24.29％,而CeO2-Al2O3催化剂具有较好的抗结焦能力.
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