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。

    MAGNESIUM MODIFIED ULTRA-STABLE RARE EARTH Y-TYPE MOLECULAR SIEVE AND PREPARATION METHOD THEREFOR
    7.
    发明申请
    MAGNESIUM MODIFIED ULTRA-STABLE RARE EARTH Y-TYPE MOLECULAR SIEVE AND PREPARATION METHOD THEREFOR 有权
    镁改性超稳定稀土Y型分子筛及其制备方法

    公开(公告)号:US20150175432A1

    公开(公告)日:2015-06-25

    申请号:US14365432

    申请日:2012-04-13

    摘要: The present invention provides a magnesium-modified ultra-stable rare earth type Y molecular sieve and the preparation method thereof, which method is carried out by subjecting a NaY molecular sieve as the raw material to a rare earth exchange and a dispersing pre-exchange, then to an ultra-stabilization calcination treatment, and finally to a magnesium modification. The molecular sieve comprises 0.2 to 5% by weight of magnesium oxide, 1 to 20% by weight of rare earth oxide, and not more than 1.2% by weight of sodium oxide, and has a crystallinity of 46 to 63%, and a lattice parameter of 2.454 nm to 2.471 nm. In contrast to the prior art, in the molecular sieve prepared by this method, rare earth ions are located in sodalite cages, which is demonstrated by the fact that no rare earth ion is lost during the reverse exchange process. Moreover, the molecular sieve prepared by such a method has a molecular particle size D(v,0.5) of not more than 3.0 μm and a D(v,0.9) of not more than 20 μm. Such a molecular sieve has both high stability and high selectivity for the target product, while cracking catalysts using the molecular sieve as an active component is characterized by a high heavy-oil-conversion capacity and a high yield of valuable target products.

    摘要翻译: 本发明提供一种镁改性超稳定稀土类Y分子筛及其制备方法,该方法是以NaY分子筛为原料进行稀土交换和分散预交换, 然后进行超稳定化煅烧处理,最后进行镁改性。 分子筛含有0.2〜5重量%的氧化镁,1〜20重量%的稀土氧化物和1.2重量%的氧化钠,结晶度为46〜63%,晶格 参数为2.454 nm至2.471 nm。 与现有技术相反,在通过该方法制备的分子筛中,稀土离子位于钠盐网箱中,这通过在反向交换过程中没有稀土离子损失的事实来证明。 此外,通过这种方法制备的分子筛具有不大于3.0μm的分子粒度D(v,0.5)和不大于20μm的D(v,0.9)。 这种分子筛对于目标产物具有高稳定性和高选择性,而使用分子筛作为活性组分的裂化催化剂的特征在于高重油转化能力和高产率的有价值的目标产物。