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    • 2. 发明申请
    • PETROLEUM HYDROCARBON CRACKING CATALYST THAT CONTAINS RARE EARTH ZEOLITE Y AND ITS PREPARATION
    • 含有稀土沸石Y的石油碳氢化合物裂解催化剂及其制备
    • WO2004037413A8
    • 2005-06-09
    • PCT/CN0300910
    • 2003-10-28
    • CHINA PETROLEUM & CHEMICALRES INST PETROLEUM PROCESSINGDU JUNLI ZHENGDA ZHIJIANHE MINGYUAN
    • DU JUNLI ZHENGDA ZHIJIANHE MINGYUAN
    • B01J29/08C10G47/02C10G47/16B01J37/00C01B39/24
    • C10G47/02B01J29/088B01J2229/16B01J2229/32B01J2229/36B01J2229/40B01J2229/42C10G11/05C10G47/16C10G2300/107C10G2300/1074C10G2300/1077C10G2400/02C10L1/06
    • The present invention relates to a petroleum hydrocarbon cracking catalyst that contains rare earth zeolite Y and its preparation. It is characterized that the said rare earth containing zeolite Y has an intracrystalline rare earth content of 4-15 wt.% on the basis of rare earth oxide, an original unit cell constant of 2.440-2.465nm, and a balanced unit cell size greater than 2.435nm after being aged under severe conditions of 100% steam at 800 °C for 17 hours. The process for preparing the catalyst comprises drying the rare earth-containing zeolite Y so that its water content is less than 1Owt.%; introducing gaseous silicon tetrachloride carried by dry air in a silicon tetrachloride to zeolite Y weight ratio of 0.1-0.9:1; purging with dry air after reacting; and washing with decationized water to remove the residual soluble by-products to get the said rare earth containing zeolite Y; then mixing it with the raw materials that contains clay and binder; beating, spray drying and shaping. The catalyst can lowered the zeolite usage by 5-25% comparing with the catalyst for cracking the heavy oils and reducing olefins prepared by the piror art. It has high activity and hydrothermal stability, strong heavy oil transform power, and good gasoline, dry gas, and coke selectivity. And in the product, the olefin content in the gasoline may be lowered effectively.
    • 本发明涉及含有稀土沸石Y的石油烃裂解催化剂及其制备方法。 其特征在于所述含稀土沸石Y的稀土氧化物的结晶稀土含量为4-15重量%,原始晶胞常数为2.440-2.465nm,平衡晶胞尺寸较大 在800℃的100%蒸汽的苛刻条件下老化17小时之后超过2.435nm。 制备催化剂的方法包括干燥含稀土沸石Y,使其含水量小于10重量%; 将四氯化硅中的干燥空气携带的四氯化硅引入沸石Y的重量比为0.1-0.9:1; 反应后用干燥空气吹扫; 并用去离子水洗涤以除去残留的可溶性副产物,得到所述含有沸石Y的稀土; 然后将其与含有粘土和粘合剂的原料混合; 打浆,喷雾干燥和成型。 与用于裂化重油的还原催化剂相比,催化剂可以将沸石用量降低5-25% 具有活性高,水热稳定性强,重油转化能力强,汽油,干气和焦炭选择性好。 并且在该产品中,可以有效地降低汽油中的烯烃含量。
    • 5. 发明申请
    • TEST PROBES, COMMON OLIGONUCLEOTIDE CHIPS, NUCLEIC ACID DETECTION METHOD, AND THEIR USES
    • 测试探针,通用寡核苷酸芯片,核酸检测方法及其用途
    • WO2009140802A8
    • 2010-12-09
    • PCT/CN2008001695
    • 2008-10-06
    • SHAAN XI LIFEGEN CO LTDTANG YITONGCHEN CHAOCUI YALIZHU JUANLIYU LONGLINGAO YIWENLI ZHENG
    • TANG YITONGCHEN CHAOCUI YALIZHU JUANLIYU LONGLINGAO YIWENLI ZHENG
    • C40B40/06C12Q1/68C40B20/02C40B20/04
    • C12Q1/6827C12Q2533/107C12Q2525/197
    • High-throughput detection for the interesting base or the mutation site in the nucleic acid sample can be achieved by the linear test probe pairs P1 and P2. The test probe pairs P1 and P2 respectively comprise either of the flanking complementary sequences which are adjacent to the interesting base or the mutation site in the nucleic acid sample. When the test probe pairs P1, P2 are annealed and hybridized to the nucleic acid sample, a gap will be generated at the interesting base or the mutation site position between the probe pairs and the sample. Divide the annealed hybrid sample into four equal reaction systems to which add dATP, dTTP, dCTP, dGTP, respectively. The test probe pairs P1 and P2 will be ligated into one single probe when adding the complementary nucleotide system under the DNA polymerase or ligase. After purified and amplified, the generated single probes are hybridized to the corresponding area in a common oligonucleotide microarray. The generated single probe will give a signal in the hybrid area, and therefore detect and analyze the hybrid signal to determine the base type or the mutation genotype at the detection position. The invention can be applied to the re-sequencing the target nucleic acid sequence, the detection and analysis for the mutation, insertion, or deletion sites of a known nucleic acid sequence, and the genotyping of the pathogenic microorganism.
    • 可以通过线性测试探针对P1和P2来实现核酸样品中感兴趣碱基或突变位点的高通量检测。 测试探针对P1和P2分别包含与感兴趣碱基或核酸样品中突变位点相邻的侧翼互补序列之一。 当测试探针对P1,P2退火并与核酸样品杂交时,将在探针对和样品之间的感兴趣的碱基或突变位点位置产生间隙。 将退火的混合样品分成四个相等的反应体系,分别加入dATP,dTTP,dCTP,dGTP。 当在DNA聚合酶或连接酶下添加互补核苷酸系统时,测试探针对P1和P2将被连接到一个单个探针中。 纯化和扩增后,产生的单个探针与普通寡核苷酸微阵列中的相应区域杂交。 所产生的单个探针将在混合区域中产生信号,因此检测和分析混合信号以确定检测位置的基因型或突变基因型。 本发明可以应用于重新测序目标核酸序列,检测和分析已知核酸序列的突变,插入或缺失位点,以及病原微生物的基因分型。