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    Conversion of corn oil to upgraded biodiesel and poly(lactic acid)
    2.
    发明授权
    Conversion of corn oil to upgraded biodiesel and poly(lactic acid) 有权

    公开(公告)号：US10654785B2

    公开(公告)日：2020-05-19

    申请号：US16193590

    申请日：2018-11-16

    申请人： UNIVERSITY OF SOUTHERN CALIFORNIA

    发明人： Travis J. Williams ,  Zhiyao Lu ,  Valery Cherepakhin

    IPC分类号： C07C51/09 ,  C10L1/02 ,  B01J31/22 ,  C07F17/02

    摘要： Conversion of vegetable-derived triglycerides to fatty acid methyl esters (FAMEs) is a popular approach to the generation of biodiesel fuels and the basis of a growing industry. Drawbacks of the strategy are that (a) the glycerol backbone of the triglyceride is discarded as waste in this synthesis, and (2) many natural triglycerides are multiply-unsaturated or fully saturated, giving inferior performance and causing engine problems with long-term use. Here, we show that catalysis by iridium complex 1 can address both of these problems through selective reduction of triglycerides high in polyunsaturated fatty esters to FAMEs with high oleate concentration. This is realized using hydrogen imbedded in the triglyceride backbone, concurrently generating lactate as a value-added C3 product. Additional methanol or glycerol as a hydrogen source enables reduction of corn and soybean oils to >80% oleate.

    Dehydrogenation of neat formic acid
    3.
    发明授权
    Dehydrogenation of neat formic acid 有权

    公开(公告)号：US10556921B2

    公开(公告)日：2020-02-11

    申请号：US16246872

    申请日：2019-01-14

    申请人： UNIVERSITY OF SOUTHERN CALIFORNIA

    发明人： Travis J. Williams ,  Jeff Joseph A. Celaje ,  Zhiyao Lu

    IPC分类号： C07F15/00 ,  B01J31/18 ,  B01J31/22 ,  C01B3/22

    摘要： A formic acid decomposition catalyst system includes organometallic complexes having formula 1: wherein: M is a transition metal; E is P, N, or C (as in imidazolium carbene); R1, R2 are independently C1-6 alkyl groups; o is 1, 2, 3, or 4; R3 are independently hydrogen, C1-6 alkyl groups, OR14, NO2, halogen; R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R15, R16 are independently hydrogen or C1-6 alkyl groups; R14 is a C1-6 alkyl group; and X− is a negatively charge counter ion.

    Dehydrogenation of neat formic acid
    6.
    发明授权
    Dehydrogenation of neat formic acid 有权

    公开(公告)号：US10179798B2

    公开(公告)日：2019-01-15

    申请号：US15517701

    申请日：2015-10-07

    申请人： UNIVERSITY OF SOUTHERN CALIFORNIA

    发明人： Travis J. Williams ,  Jeff Joseph A. Celaje ,  Zhiyao Lu

    IPC分类号： C07F15/00 ,  B01J31/18 ,  B01J31/22 ,  C01B3/22

    摘要： A formic acid decomposition catalyst system includes organometallic complexes having formula 1: wherein: M is a transition metal; E is P, N, or C (as in imidazolium carbene); R1, R2 are independently C1-6 alkyl groups; o is 1, 2, 3, or 4; R3 are independently hydrogen, C1-6 alkyl groups, OR14, NO2, halogen; R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R15, R16 are independently hydrogen or C1-6 alkyl groups; R14 is a C1-6 alkyl group; and X− is a negatively charge counter ion.

    Highly robust efficient catalyst for selective dehydrogenation of neat glycerol to lactic acid
    8.
    发明授权
    Highly robust efficient catalyst for selective dehydrogenation of neat glycerol to lactic acid 有权

    公开(公告)号：US10202327B2

    公开(公告)日：2019-02-12

    申请号：US15422728

    申请日：2017-02-02

    申请人： UNIVERSITY OF SOUTHERN CALIFORNIA

    发明人： Travis J. Williams ,  Zhiyao Lu ,  Ivan Demianets

    IPC分类号： C07C51/295 ,  C01B3/32 ,  C01D7/14 ,  C07F15/00 ,  B01J31/22 ,  C07C51/16

    摘要： A catalyst system includes a complex having formula I which advantageously has a sterically protecting N-heterocyclic carbene (NHC) carbene-pyridine ligand to handle harsh reactions conditions than many prior art catalysts: wherein M is a transition metal; o is 0, 1, 2, 3, or 4; R1 is a C1-6 alkyl, a C6-18 aryl, or an optionally substituted C5-18 heteroaryl. In a refinement, R1 is methyl, ethyl, butyl, n-propyl, isopropyl, n-butyl, sec-butyl, or t-butyl; R2, R3, R3′ are independently an optionally substituted C1-6 alkyl, halo (e.g., Cl, F, Br, etc), NO2, an optionally substituted C6-18 aryl, or an optionally substituted C5-18 heteroaryl; R4, R4′ are independently an optionally substituted C1-6 alkyl, halo, NO2, an optionally substituted C6-18 aryl, or an optionally substituted C5-18 heteroaryl; and X− is a negatively charge counter ion and L1, L2 are each independently a neutral ligand.