生态化利用油页岩制备白炭黑和氧化铝  

Ecological utilization of oil shale by preparing silica and alumina

作　　者：李勇[1] 冯宗玉[1] 薛向欣[1] 贺燕[2] 乔桂波[2] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]沈阳理工大学材料科学与工程学院,辽宁沈阳110168

出　　处：《化工学报》2008年第4期1051-1057,共7页CIESC Journal

基　　金：国家自然科学基金项目(50674024)~~

摘　　要：利用油页岩为原料,首先采用碱溶-沉淀法制备了白炭黑,降低了油页岩中的SiO2的含量,具体工艺条件为:NaOH/SiO2(物质的量)=4,水/油页岩(质量)=1,100℃,6h,粒径≥0·15mm。然后采用酸浸法,制备了γ-Al2O3,降低了油页岩中的Al2O3和Fe2O3的含量,具体条件为:酸浸液中用NaOH溶液调整到pH=12·0,过滤分离,再用HCl调整溶液pH=6·0,使Al2O3和Fe2O3完全分离。最后得到了含量为71·6%的干酪根,并经FT-IR验证。Silica was prepared by alkali dissolution-precipitation with oil shale as starting material, and the content of SiO2 in oil shale was reduced. The detailed processing conditions were as follows： molar ratio of NaOH to SiO2 was 4, mass ratio of water to oil shale was 1, the treating condition was at 100℃ for 6 h, and grain size was more than 0.15 mm. Then acid leaching of oil shale was performed to prepare 7-Al2O3, and the content of Al2O3 and Fe2O3 in oil shale was reduced too. The acid leachate solution was modulated to pH=12.0 by adding alkali solution, and a mixture of 7-Al2O3 and Fe2O3 was precipitated and filtered, then 7-Al2O3 and Fe2O3 were separated completely by adding acid solution to pH =6.0. Finally, the treated oil shale had a kerogen content of 71.60% and the kerogen was validated by FT-IR.

关 键 词：油页岩 白炭黑 氧化铝 生态化利用 

分 类 号：TE992.3[石油与天然气工程—石油机械设备]