会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • PROCESS FOR PRODUCING FURFURAL
    • 生产过程的方法
    • WO2012041990A1
    • 2012-04-05
    • PCT/EP2011/067049
    • 2011-09-29
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.VAN BUIJTENEN, JeroenLANGE, Jean-PaulSPIERING, Wouter
    • VAN BUIJTENEN, JeroenLANGE, Jean-PaulSPIERING, Wouter
    • C07D307/50
    • C07D307/50
    • A process is provided for producing furfural from solid biomass by gaseous acid catalysed hydrolysis and dehydration in the presence of superheated steam and one or more acid catalysts comprising the steps of (a) heating the solid biomass to a temperature which is sufficiently high to ensure that the superheated steam and the acid catalyst or catalysts to be used remain in gaseous form during the reaction; (b) contacting the heated solid biomass of step (a) with a gaseous stream comprising superheated steam and one or more acid catalysts to produce a gaseous stream comprising superheated steam, one or more acid catalysts and furfural; (c) recirculating the gaseous stream comprising superheated steam, one or more acid catalysts and furfural to bring it into further contact with the heated solid biomass; (d) maintaining the recirculation cycle of step (c) to enrich the concentration of furfural in the recirculating gaseous stream; and(e) withdrawing part of the recirculating gaseous stream as a purge stream from which the furfural is separated.
    • 提供了一种用于在过热蒸汽和一种或多种酸催化剂的存在下通过气态酸催化水解和脱水从固体生物质产生糠醛的方法,所述酸催化剂包括以下步骤:(a)将固体生物质加热到足够高的温度以确保 过氧化蒸汽和酸催化剂或催化剂在反应期间保持气态; (b)使步骤(a)的加热的固体生物质与包含过热蒸汽和一种或多种酸催化剂的气流接触以产生包含过热蒸汽,一种或多种酸催化剂和糠醛的气流; (c)使包含过热蒸汽,一种或多种酸催化剂和糠醛的气流再循环以使其与加热的固体生物质进一步接触; (d)保持步骤(c)的再循环循环以富集再循环气流中糠醛的浓度; 和(e)将部分循环气流作为从其分离出糠醛的吹扫流排出。