褐煤与石油焦共成浆性研究  

Slurryability of lignite and petroleum coke mixture

作　　者：杨波丽[1] 龚凯峰[1] 邹建辉[1] 刘海峰 王辅臣[1] 于遵宏[1] 

机构地区：[1]华东理工大学煤气化教育部重点实验室,上海200237

出　　处：《燃料化学学报》2008年第4期391-396,共6页Journal of Fuel Chemistry and Technology

基　　金：教育部新世纪人才支持计划(NCET-05-0413);长江学者和创新团队发展计划(PCSIRT-IRT0620)

摘　　要：考察了褐煤的单独成浆性及其加入不同比例石油焦的共成浆性。结果表明,由于其较强的亲水性和发达的孔隙结构,在1 000mPa.s时,褐煤的成浆浓度只能达到41%;在褐煤中加入不同比例石油焦,褐煤的成浆浓度明显得到改善,加入石油焦的比例越多,浆体的浓度越高,当石油焦与褐煤的比为3∶2时,可得到60%的固体浓度,且稳定性良好,呈假塑性流体的水煤焦浆。褐煤的亲水性较强,石油焦的疏水性较强,两者的互补性是获得高浓度水煤焦浆的根本原因。The slurryability of lignite and its mixture with different percent of petroleum coke have been investigated. It was found that only 41% of. lignite water slurry could be obtained at 1000 mPa. s due to the strong hydrophility and macroporosity of lignite. With petroleum coke, the solid content of lignite water slurry has been progressively improved. The more petroleum coke, the higher concentration of mixture slurry. The solid content of slurry is allowed to be 60% when the mass ratio of petroleum coke to lignite is 3 to 2. All cokelignite-water slurries exhibit pseudo-plastic behavior and good static stability. The hydrophility of lignite is strong, while petroleum coke is hydrophobic. The complementarity of lignite and petroleum coke plays the key role in getting high mass fraction of coke-lignite-water slurries.

关 键 词：褐煤 石油焦 水煤焦浆 成浆性 

分 类 号：TQ534[化学工程—煤化学工程]