摘要
文章利用自行设计搭建的处理量120 kg/d的瓦斯全循环气体热载体干馏炉,通过试验的方法,研究新型气体热载体干馏炉在干馏过程中的一些运行参数和产生的页岩油的一些特性,对现有干馏工艺的改进具有指导意义。试验通过改变油页岩颗粒的粒径,进而改变物料之间的空隙率、空隙结构和进气流量,来研究不同粒径的样品对干馏特性和干馏产物的影响。结果表明:油页岩颗粒的粒径不同,物料之间的空隙率和干馏炉的进气流量不同,导致炉内传热传质的不同,不同粒径的油页岩干馏油收率不同,粒径为20—25 mm的页岩油收率最高。由于气体热载体流量不同,干馏炉内传热传质情况和冷却器的工作负荷也不相同,因此不同粒径的页岩干馏之后,在4个收油点所收到的页岩油质量分数也不相同。
Using the constructed cyclic gas-heat-carrier retort with a capacity of 120 kg/d and through the experimental methods, the operating parameters and properties of shale oil were investigated in the retorting process of the new-form retort technology with gas heat carrier, thus providing the guidance for advancing current retorting technics. By changing the oil shale particle size as well as material void ratio, porosity and feeding flow, the effects of various particle sizes on retorting characteristics and products were investigated. The results show that different particle sizes and different material void ratios and feeding flows result in the variation of heat-transfer and mass- transfer in retort. Different particle sizes cause different oil recoveries, which is highest for particle sizes within 20- 25 mm. Because of the variation of heat gas flow, the status of heat, mass-transfer and the workload of cooler are different, thus upon the retorting of oil shale with different particles, the mass fractions of shale oil collected on four spots are different.
出处
《化学工程》
CAS
CSCD
北大核心
2015年第5期11-15,共5页
Chemical Engineering(China)
基金
国家自然科学基金资助项目(51276034)
长江学者和创新团队发展计划资助(IRT13052)
吉林省科技发展计划项目(20150204012SF
20130522067JH)
关键词
油页岩
干馏
气体热载体
油收率
oil shale
retorting
gas heat carrier
oil yield
