摘要
硫酸化氧化锆固体酸(SO4^2-/ZrO2)烷烃异构化催化剂兼具高活性、可再生和环境友好的优点,具有广阔的应用前景。本文综述了SO4^2-/ZrO2催化剂在轻质烷烃异构化中的工业应用进展,包括市场现状、现有技术、经济性等方面,并对专利和文献中报道的催化剂制备技术进行了论述总结。重点针对催化剂的关键制备参数以及对催化剂结构和异构化性能的影响进行了深入分析和探讨,包括氢氧化物前体的沉淀和焙烧条件、助剂的添加和改性作用、催化剂预处理条件和原料水含量的影响等。最后对催化剂开发和工业化中的难点给出了分析和建议,并展望了未来的催化剂发展方向,指出拓宽催化剂的原料适应性、发展新型制备技术和助剂体系、结合催化剂再生等工艺研究是未来的发展方向。
Sulfated zirconia solid acid(SO4^2-/ZrO2)provides the great potential as a new-generation catalyst for light paraffin isomerization,which combines the high catalytic activity,regenerability with the environmental-friendly character.The progresses of industrial application of light naphtha catalyzed by sulfated zirconia are summarized,including the current market situation,commercial technologies and technical economy.The research progresses on the catalyst preparation technologies reported in the patents and literature are also reviewed.The effects of crucial preparation parameters on their influences on the catalysts structure and isomerization performance are deeply discussed,including precipitation and calcination conditions of precursor,the addition and modification of promoters,pretreatment conditions of catalysts and influence of water content of raw materials.Finally,the challenges of catalyst preparation and industrialization are analyzed and the corresponding suggestions are given.We also propose the future direction of the catalysts development,that is to broaden the adoption of raw materials,develop the new synthesis techniques and promoters,and the catalyst regeneration technology.
作者
王锐
阳雪
缪平
WANG Rui;YANG Xue;MIAO Ping(National Institute of Clean-and-Low-Carbon Energy,Beijing 102209,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2019年第11期4930-4940,共11页
Chemical Industry and Engineering Progress
关键词
轻质烷烃
异构化
催化剂
制备
工业应用
light paffafin
isomerization
catalyst
preparation
industrial application
