Heavy Oil Catalytic Cracking Catalyst and Preparation Method Therefor
    2.
    发明申请
    Heavy Oil Catalytic Cracking Catalyst and Preparation Method Therefor 有权
    重油催化裂化催化剂及其制备方法

    公开(公告)号:US20150080209A1

    公开(公告)日:2015-03-19

    申请号:US14364536

    申请日:2012-04-13

    IPC分类号: B01J29/80

    摘要: The present invention relates to a heavy oil catalytic cracking catalyst and preparation method thereof. The catalyst comprises 2 to 50% by weight of an ultra-stable rare earth type Y molecular sieve, 0.5 to 30% by weight of one or more other molecular sieves, 0.5 to 70% by weight of clay, 1.0 to 65% by weight of high-temperature-resistant inorganic oxides, and 0.01 to 12.5% by weight of rare earth oxide. The ultra-stable rare earth type Y molecular sieve is obtained as follows: the raw material, NaY molecular sieve, is subjected to a rare earth exchange and a dispersing pre-exchange, and the molecular sieve slurry is filtered, washed and subjected to a first calcination to produce a “one-exchange one-calcination” rare earth sodium Y molecular sieve, wherein the order of the rare earth exchange and the dispersing pre-exchange is not limited; and the “one-exchange one-calcination” rare earth sodium Y molecular sieve is further subjected to ammonium salt exchange for sodium reduction and a second calcination. The catalyst provided in the present invention is characteristic in its high heavy-oil-conversion capacity, a high total liquid yield and a high light oil yield.

    摘要翻译: 本发明涉及一种重油催化裂化催化剂及其制备方法。 该催化剂包含2至50重量%的超稳定稀土型Y分子筛,0.5至30重量%的一种或多种其它分子筛,0.5至70重量%的粘土,1.0至65重量% 的耐高温无机氧化物和0.01〜12.5重量%的稀土氧化物。 超稳定型稀土类Y分子筛的制备如下:将原料NaY分子筛进行稀土交换和分散预交换,并将分子筛浆料过滤,洗涤并进行 首先煅烧产生“一次一次煅烧”稀土钠Y分子筛,其中稀土交换和分散预交换的顺序不受限制; “一交一一”稀土钠Y分子筛进一步进行铵盐交换钠还原和二次煅烧。 本发明提供的催化剂具有高重油转化能力,总液体产率高,轻油收率高的特点。