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发明公开
CN102008972A 用于烃蒸汽裂化的催化剂、制备该催化剂的方法以及用该催化剂制备烯烃的方法 有权

用于烃蒸汽裂化的催化剂、制备该催化剂的方法以及用该催化剂制备烯烃的方法
摘要：
本发明涉及一种用于烃蒸汽裂化的催化剂，制备该催化剂的方法和使用该催化剂通过烃蒸汽裂化制备烯烃的方法，更具体而言，涉及一种用于制备低碳烯烃用于烃蒸汽裂化的催化剂，制备该催化剂的方法和在复合催化剂存在的条件下通过进行烃蒸汽裂化反应制备低碳烯烃，如乙烯、丙烯等的方法，该催化剂包含由CrZrjAkOx表示的氧化物催化剂(0.5≤j≤120，1≤k≤50，A为过渡金属，x为满足依照Cr、Zr和A的化合价以及j和k的值而定的条件的数值)，其中，复合催化剂的形状如下，其外径r2为0.5R～0.96R(R为裂化反应管的半径)，厚度(t；r2-r1)为2～6mm，长度h为0.5r2～10r2。本发明能够提供的用于烃蒸汽裂化的催化剂具有大的物理强度、高温下优异的稳定性、低的因焦炭引起的失活性和提高的低碳烯烃的产率和选择性。
摘要（英）：

The present invention relates to a catalyst for hydrocarbon steam cracking, a method of preparing the same, and a method of preparing olefin by the hydrocarbon steam cracking by using the catalyst, and more specifically, to a catalyst for hydrocarbon steam cracking for preparing light olefin including an oxide catalyst (0.51<=j<=120, 1<=k<=50, A is transition metal, and x is a number satisfying conditions according to valence of Cr, Zr, and A and values of j and k) represented by CrZrjAkOx, wherein the composite catalyst is a type that has an outer radius r2 of 0.5R to 0.96R (where R is a radius of a cracking reaction tube), a thickness (t; r2-r1) of 2 to 6 mm, and a length h of 0.5r2 to 10r2, a method of preparing the same, and a method of preparing light olefin such as ethylene and propylene by using the composite catalyst through the hydrocarbon steam cracking reaction. The catalyst provided by the invention for hydrocarbon steam cracking has high physical strength, excellent stability at high temperature, low inactivation owing to coke and improved yield and selectivity of the light olefin.

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