METALOXIDE - Zr02 CATALYSTS FOR THE ESTERIFICATION AND TRANSESTERIFICATION OF FREE FATTY ACIDS AND TRIGLYCERIDES TO OBTAIN BIO-DIESEL
    1.
    发明申请
    METALOXIDE - Zr02 CATALYSTS FOR THE ESTERIFICATION AND TRANSESTERIFICATION OF FREE FATTY ACIDS AND TRIGLYCERIDES TO OBTAIN BIO-DIESEL 有权
    金属氧化物 - ZrO2催化剂用于免费脂肪酸和三氯乙烯的生产和转化获得生物柴油

    公开(公告)号:US20120283459A1

    公开(公告)日:2012-11-08

    申请号:US13508738

    申请日:2010-11-08

    IPC分类号: B01J21/06 B01J21/08 C11C3/10

    摘要: Mixed metal oxide catalysts (ZnO, CeO, La2O3, NiO, Al203, Si02, TiO2, Nd2O3, Yb2O3, or any combination of these) supported on zirconia (ZrO2) or hydrous zirconia are provided. These mixed metal oxide catalysts can be prepared via coprecipitation, impregnation, or sol-gel methods from metal salt precursors with/without a Zirconium salt precursor. Metal oxides/ZrO2 catalyzes both esterification and transesterification of oil containing free fatty acids in one batch or in single stage. In particular, these mixed metal oxides supported or added on zirconium oxide exhibit good activity and selectivity for esterification and transesterification. The low acid strength of this catalyst can avoid undesirable side reaction such as alcohol dehydration or cracking of fatty acids. Metal oxides/ZrO2 catalysts are not sensitive to any water generated from esterification. Thus, esterification does not require a water free condition or the presence of excess methanol to occur when using the mixed metal oxide catalyst. The FAME yield obtained with metal oxides/ZrO2 is higher than that obtained with homogeneous sulfuric acid catalyst. Metal oxides/ZrO2 catalasts can be prepared as strong pellets and in various shapes for use directly in a flow reactor. Furthermore, the pellet has a strong resistance toward dissolution to aqueous or oil phases.

    摘要翻译: 提供负载在氧化锆(ZrO2)或含水氧化锆上的混合金属氧化物催化剂(ZnO,CeO,La2O3,NiO,Al2O3,SiO2,TiO2,Nd2O3,Yb2O3或它们的任意组合)。 这些混合金属氧化物催化剂可以通过共沉淀,浸渍或溶胶 - 凝胶法由具有/不具有锆盐前体的金属盐前体制备。 金属氧化物/ ZrO2催化一批或单一阶段含油游离脂肪酸的酯化和酯交换。 特别地,负载或添加到氧化锆上的这些混合金属氧化物显示出良好的酯化和酯交换活性和选择性。 该催化剂的低酸强度可以避免不希望的副反应,例如醇脱水或脂肪酸的裂解。 金属氧化物/ ZrO2催化剂对由酯化产生的任何水不敏感。 因此,当使用混合金属氧化物催化剂时,酯化不需要无水条件或过量甲醇的存在。 用金属氧化物/ ZrO2获得的FAME产率高于用均相硫酸催化剂获得的FAME产率。 金属氧化物/ ZrO 2催化剂可以制备成强颗粒,并且可以用于流动反应器中直接使用的各种形状。 此外,颗粒对水相或油相具有很强的溶解性。

    COMBINED HOMOGENEOUS AND HETEROGENEOUS CATALYTIC TRANSESTERIFICATION PROCESS FOR BIODIESEL PRODUCTION
    2.
    发明申请
    COMBINED HOMOGENEOUS AND HETEROGENEOUS CATALYTIC TRANSESTERIFICATION PROCESS FOR BIODIESEL PRODUCTION 失效
    用于生物体生产的组合均质和异构催化转移过程

    公开(公告)号:US20090145022A1

    公开(公告)日:2009-06-11

    申请号:US12252875

    申请日:2008-10-16

    IPC分类号: C10L1/18

    摘要: In one aspect, a process for producing a biofuel comprises reacting a feed material that comprises a glyceride with an alcohol in the presence of a catalytic composition such that at least some of the glyceride in the feed material is converted into a biofuel mixture that comprises glycerol and the corresponding alcoholic ester of the glyceride. The catalytic composition comprises a heterogeneous catalyst and a homogeneous catalyst. The heterogeneous catalyst and the homogeneous catalyst have a synergistic effect in catalyzing the reaction of the glyceride in the feed material with the alcohol.

    摘要翻译: 一方面,生产生物燃料的方法包括在催化组合物存在下使包含甘油酯的进料与醇反应,使得进料中的至少一些甘油酯转化为包含甘油的生物燃料混合物 和甘油酯的相应醇酯。 催化组合物包含非均相催化剂和均相催化剂。 非均相催化剂和均相催化剂在催化进料中甘油酯与醇的反应方面具有协同效应。

    METHODS AND CATALYSTS FOR MAKING BIODIESEL FROM THE TRANSESTERIFICATION AND ESTERIFICATION OF UNREFINED OILS
    6.
    发明申请
    METHODS AND CATALYSTS FOR MAKING BIODIESEL FROM THE TRANSESTERIFICATION AND ESTERIFICATION OF UNREFINED OILS 有权
    从生物柴油制备生物柴油的方法和催化剂

    公开(公告)号:US20100010246A1

    公开(公告)日:2010-01-14

    申请号:US12468309

    申请日:2009-05-19

    IPC分类号: C11C1/00 B01J23/10 C11C3/10

    摘要: A method of forming a biodiesel product and a heterogeneous catalyst system used to form said product that has a high tolerance for the presence of water and free fatty acids (FFA) in the oil feedstock is disclosed. This catalyst system may simultaneously catalyze both the esterification of FAA and the transesterification of triglycerides present in the oil feedstock. The catalyst system according to one aspect of the present disclosure represents a class of zinc and lanthanum oxide heterogeneous catalysts that include different ratios of zinc oxide to lanthanum oxides (Zn:La ratio) ranging from about 10:0 to 0:10. The Zn:La ratio in the catalyst is believed to have an effect on the number and reactivity of Lewis acid and base sites, as well as the transesterification of glycerides, the esterification of fatty acids, and the hydrolysis of glycerides and biodiesel.

    摘要翻译: 公开了形成生物柴油产物的方法和用于形成对油原料中存在水和游离脂肪酸(FFA)的高耐受性的所述产物的多相催化剂体系。 该催化剂体系可以同时催化FAA的酯化和油原料中存在的甘油三酯的酯交换。 根据本公开一个方面的催化剂体系表示一类锌和镧异相催化剂,其包括氧化锌与氧化镧的不同比例(Zn:La比)为约10:0至0:10。 据信催化剂中的Zn:La比对路易斯酸和碱基位点的数量和反应性以及甘油酯的酯交换,脂肪酸的酯化以及甘油酯和生物柴油的水解具有影响。

    Calcium and lanthanum solid base catalysts for transesterification
    7.
    发明授权
    Calcium and lanthanum solid base catalysts for transesterification 有权
    用于酯交换的钙和镧固体碱催化剂

    公开(公告)号:US09089833B2

    公开(公告)日:2015-07-28

    申请号:US13127614

    申请日:2009-11-05

    摘要: In one aspect, a heterogeneous catalyst comprises calcium hydroxide and lanthanum hydroxide, wherein the catalyst has a specific surface area of more than about 10 m2/g. In another aspect, a heterogeneous catalyst comprises a calcium compound and a lanthanum compound, wherein the catalyst has a specific surface area of more than about 10 m2/g, and a total basicity of about 13.6 mmol/g. In further another aspect, a heterogeneous catalyst comprises calcium oxide and lanthanum oxide, wherein the catalyst has a specific surface area of more than about 10 m2/g. In still another aspect, a process for preparing a catalyst comprises introducing a base precipitant, a neutral precipitant, and an acid precipitant to a solution comprising a first metal ion and a second metal ion to form a precipitate. The process further comprises calcining the precipitate to provide the catalyst.

    摘要翻译: 一方面,非均相催化剂包括氢氧化钙和氢氧化镧,其中催化剂的比表面积大于约10m 2 / g。 另一方面,非均相催化剂包括钙化合物和镧化合物,其中催化剂的比表面积大于约10m 2 / g,总碱度约为13.6mmol / g。 在另一方面,非均相催化剂包括氧化钙和氧化镧,其中催化剂的比表面积大于约10m 2 / g。 另一方面,制备催化剂的方法包括将碱沉淀剂,中性沉淀剂和酸沉淀剂引入到包含第一金属离子和第二金属离子的溶液中以形成沉淀物。 该方法还包括煅烧沉淀物以提供催化剂。

    CALCIUM AND LANTHANUM SOLID BASE CATALYSTS FOR TRANSESTERIFICATION
    8.
    发明申请
    CALCIUM AND LANTHANUM SOLID BASE CATALYSTS FOR TRANSESTERIFICATION 有权
    钙和固体碱性催化剂用于转换

    公开(公告)号:US20110209388A1

    公开(公告)日:2011-09-01

    申请号:US13127614

    申请日:2009-11-05

    摘要: In one aspect, a heterogeneous catalyst comprises calcium hydroxide and lanthanum hydroxide, wherein the catalyst has a specific surface area of more than about 10 m2/g. In another aspect, a heterogeneous catalyst comprises a calcium compound and a lanthanum compound, wherein the catalyst has a specific surface area of more than about 10 m2/g, and a total basicity of about 13.6 mmol/g. In further another aspect, a heterogeneous catalyst comprises calcium oxide and lanthanum oxide, wherein the catalyst has a specific surface area of more than about 10 m2/g. In still another aspect, a process for preparing a catalyst comprises introducing a base precipitant, a neutral precipitant, and an acid precipitant to a solution comprising a first metal ion and a second metal ion to form a precipitate. The process further comprises calcining the precipitate to provide the catalyst.

    摘要翻译: 一方面,非均相催化剂包括氢氧化钙和氢氧化镧,其中催化剂的比表面积大于约10m 2 / g。 另一方面,非均相催化剂包括钙化合物和镧化合物,其中催化剂的比表面积大于约10m 2 / g,总碱度约为13.6mmol / g。 在另一方面,非均相催化剂包括氧化钙和氧化镧,其中催化剂的比表面积大于约10m 2 / g。 另一方面,制备催化剂的方法包括将碱沉淀剂,中性沉淀剂和酸沉淀剂引入到包含第一金属离子和第二金属离子的溶液中以形成沉淀物。 该方法还包括煅烧沉淀物以提供催化剂。

    ZnO NANOPARTICLE CATALYSTS FOR USE IN BIODIESEL PRODUCTION AND METHOD OF MAKING
    9.
    发明申请
    ZnO NANOPARTICLE CATALYSTS FOR USE IN BIODIESEL PRODUCTION AND METHOD OF MAKING 有权
    用于生物体生产的ZnO纳米催化剂及其制备方法

    公开(公告)号:US20090307966A1

    公开(公告)日:2009-12-17

    申请号:US12485433

    申请日:2009-06-16

    IPC分类号: C10L1/19 B01J23/06 B01J23/10

    摘要: A method of forming a biodiesel product and a heterogeneous catalyst system used to form said product that has a high tolerance for the presence of water and free fatty acids (FFA) in the oil feedstock is disclosed. This catalyst system may simultaneously catalyze both the esterification of FAA and the transesterification of triglycerides present in the oil feedstock. The catalyst system is comprised of a mixture of zinc oxide and a second metal oxide. The zinc oxide includes a mixture of amorphous zinc oxide and zinc oxide nanocrystals, the zinc nanocrystals having a mean grain size between about 20 and 80 nanometers with at least one of the nanocrystals including a mesopore having a diameter of about 5 to 15 nanometers. Preferably, the second metal oxide is a lanthanum oxide, the lanthanum oxide being selected as one from the group of La2CO5, LaOOH, and combinations or mixtures thereof.

    摘要翻译: 公开了形成生物柴油产物的方法和用于形成对油原料中存在水和游离脂肪酸(FFA)的高耐受性的所述产物的多相催化剂体系。 该催化剂体系可以同时催化FAA的酯化和油原料中存在的甘油三酯的酯交换。 催化剂体系由氧化锌和第二金属氧化物的混合物组成。 氧化锌包括无定形氧化锌和氧化锌纳米晶体的混合物,锌纳米晶体的平均晶粒尺寸在约20至80纳米之间,其中至少一个纳米晶体包括直径约5至15纳米的中孔。 优选地,第二金属氧化物是氧化镧,氧化镧选自La 2 CO 5,LaOOH中的一种,以及它们的组合或混合物。