乙醇-柴油混合燃料的制备及其性能研究  

PREPARATION AND PERFORMANCE STUDY OF ETHANOL-DIESEL BLENDED FUEL

作　　者：王勇能[1] 马建中[1] 胡静[1] 朱利亚[1] 

机构地区：[1]陕西科技大学资源与环境学院,西安710021

出　　处：《石油炼制与化工》2008年第9期44-48,共5页Petroleum Processing and Petrochemicals

基　　金：陕西省"13115"科技创新工程重大科技专项(2007ZDKG-41);国家教育部新世纪优秀人才支持计划项目(NCET-04-0973);陕西科技大学"科研团队建设"基金(SUST-A03)的联合资助

摘　　要：研究了乳化剂种类、乳化剂含量、乳化剂之间配比及乙醇含量对乙醇-柴油混合燃料性能的影响,筛选出优化的乙醇柴浦混合燃料的乳化剂,将其添加于乙醇柴油中,采用物理共混法制备了乙醇柴油混合燃料。研究结果表明,阳离子乳化剂31381与非离子乳化剂1202在 m(31381):m(1202)=3:7的条件下复配(复配乳化剂的 HLB 值为6.95),在乙醇-柴油(乙醇质量分数为16%)中添加质量分数为3.3%的复配乳化剂,制备出的乙醇柴油混合燃料的粘度为3.06mPa·s,界面张力为26.82mN/m。该混合燃料的粒径分布均匀,燃烧速率与0号柴油相当,烟度较0号柴油降低59.2%,腐蚀性符合国家标准,在室温下能稳定存放6个月以上。Ethanol-diesel blended fuel was prepared by physical mixing in the presence of emulsifier. The effects of different emulsifiers including their various mixtures, the dosage of emulsifier and the content of ethanol on the performance of blended fuel were investigated. Results showed that under the optimum preparation conditions of a blended fuel with a ethanol content of 16% ,using a mixed emulsifier（31381 cation emulsifier and 1202 emulsifier）having a mass mixing ratio of 3 to 7,and a dosage of the mixed emulsifier（HLB= 6. 95）of 3. 3% ,the viscosity and the surface tension of the emulsified blended fuel were 3.06 mPa · s and 26.82 mN/m, respectively. The particles distribution of the emulsified blended fuel shown by transmission electron microscopy was uniform. Test results also showed that the combustion rate of said blended fuel was similar with that of 0 # diesel fuel,its pitch of smoke reduced by 59.2% as compared with 0# diesel fuel, and its corrosive behavior met the requirement of National Standard. A 6-month storage test at ambient temperature showed that the emulsified blended fuel was stable

关 键 词：乙醇 柴油 乳化剂 稳定性 

分 类 号：TE626[石油与天然气工程—油气加工工程]