秸秆液化制备生物沥青工艺及性能研究  

Processes and performances of bio-asphalt preparation by straw liquefaction

作　　者：丁湛[1] 岳向京 张静[1] 邴慧 栗培龙[2] DING Zhan;YUE Xiang-jing;ZHANG Jing;BING Hui;LI Pei-long(Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,Chang’an University,Xi’an 710054,China;Key Laboratory of Road Structure&Material Ministry of Transport,Chang’an University,Xi’an 710064,China)

机构地区：[1]长安大学旱区地下水文与生态效应教育部重点实验室,陕西西安710054 [2]长安大学道路结构与材料交通行业重点实验室,陕西西安710064

出　　处：《应用化工》2021年第7期1776-1779,共4页Applied Chemical Industry

基　　金：国家自然科学基金项目(51108037);陕西省自然科学基础研究计划项目(2017JM5099)。

摘　　要：在酚、醇和酚醇联用的不同液化体系下对稻草秸秆进行液化,将液化产物掺入基质沥青中,制备生物沥青。结果表明,在酚醇联用体系下且液化产物掺量为10%时,所制备的生物沥青性能最佳,其针入度、软化点、延度均符合要求,并一定程度上改善了基质沥青的低温性能。秸秆在酚醇联用(聚乙二醇400∶丙三醇∶苯酚=1∶1∶1)体系下进行液化的工艺条件为:90 min,140℃,固液比1∶4,固催比1∶0.1,压力1 MPa。Rice straw was liquefied under different liquefaction systems combined with phenol,polyhydric alcohols and phenol-polyhydric alcohols,the liquefied products into the matrix asphalt to prepared bio-asphalt.The results showed that:under the phenol-polyhydric alcohols combination system and the liquefied product dosage was 10%,the prepared bio-asphalt had the best performance,the penetration,softening point,and ductility all met the requirements,and to a certain extent,the low temperature performance of matrix asphalt was improved.Hence,Our work has proved that straw be liquefied under the system of phenol-alcohol(polyethylene glycol 400∶glycerol∶phenol=1∶1∶1),and the recommended liquefaction process was:90 min,140℃,solid-liquid ratio 1∶4,solid-catalyst ratio 1∶0.1,pressure 1 MPa.

关 键 词：秸秆 液化 生物沥青 正交实验 

分 类 号：TQ524[化学工程—煤化学工程] TQ536