METHOD FOR PREPARING P-XYLENE
    1.
    发明公开

    公开(公告)号:US20240317658A1

    公开(公告)日:2024-09-26

    申请号:US18694415

    申请日:2021-12-10

    IPC分类号: C07C15/08 B01J29/40 B01J37/02

    摘要: A method for preparing p-xylene is provided. Raw materials containing methanol, naphtha and CO2 are introduced into a reactor filled with a catalyst for a reaction to produce p-xylene. By adding the methanol, the product distribution is adjusted, and the selectivity of p-xylene is obviously improved. In addition, components containing benzene and toluene in aromatic hydrocarbon products are returned to a reaction system and co-fed with the raw materials for a reaction to produce p-xylene, so that cyclic utilization of the raw materials is achieved, and the method has extremely high economic benefits. The method has a simple process and high feasibility, can greatly improve the selectivity and yield of p-xylene, has an important application value, and provides a new way for large-scale utilization of CO2.

    BURNER AND APPLICATIONS THEREOF
    4.
    发明公开

    公开(公告)号:US20230349549A1

    公开(公告)日:2023-11-02

    申请号:US18002162

    申请日:2021-11-29

    摘要: A burner includes a housing, a fan, a burning head and an ignition mechanism. An air inlet of the housing and an input end of the burning head form a pressure equalizing cavity. The ignition mechanism is arranged at an output end of the burning head. The burning head includes a main frame and at least one stable burning isolation strip, an interior of the main frame is divided into at least two ventilation areas by the stable burning isolation strip in a gas channel direction. A plurality of separation mechanisms is arranged in each ventilation area and divide the ventilation area into a plurality of through holes arranged in the gas channel direction, the through holes are used for allowing mixed gas to pass through and strengthening the mixing effect. The burning flame of a burning surface of the main frame can be divided into mutually independent flames by the stable burning isolation strip. The burner can be used in gas stoves, low-nitrogen combustion engines for a gas boiler, gas water heaters and gas heating water heaters.

    HIGH-SILICA Y MOLECULAR SIEVE HAVING FAU TOPOLOGY AND PREPARATION METHOD THEREFOR

    公开(公告)号:US20220306481A1

    公开(公告)日:2022-09-29

    申请号:US17604377

    申请日:2019-09-17

    IPC分类号: C01B39/20 B01J29/08

    摘要: Disclosed in the present application is a high-silica Y molecular sieve having FAU topology. The anhydrous chemical constitution of the molecular sieve is as shown in formula I: kM.mR1.nR2.(SixAly)O2 Formula I; wherein, M is at least one of alkali metal elements; R1 and R2 represent organic templating agent agents; k represents the numbers of moles of the alkali metal element corresponding to per mole of (SixAly)O2, k=0˜0.20; m and n represent the numbers of moles of templating agents R1 and R2 corresponding to per mole of (SixAly)O2, m=0˜0.20, n=0.01˜0.20; x, y respectively represents the mole fraction of Si and Al, 2x/y=7-40, and x+y=1; R1, R2 are independently selected from one of nitrogen-containing heterocyclic compounds and their derivatives, and quaternary ammonium compounds. Also disclosed in the present application is a synthesis method for the high-silica Y molecular sieve having FAU topology.

    METHOD FOR DETECTING INTERACTION AND AFFINITY BETWEEN LIGAND AND PROTEIN

    公开(公告)号:US20220283177A1

    公开(公告)日:2022-09-08

    申请号:US17664401

    申请日:2022-05-20

    IPC分类号: G01N33/68 G01N33/58

    摘要: A method of solvent-induced protein precipitation (SIP) for detecting the interaction of ligands with proteins in a complex protein sample. After the equal amount of solvent is added to the protein samples with and without a ligand to denature and precipitate the proteins, the protein abundances in supernatant and/or precipitate in the ligand group and the control group are measured by quantitative technology. The target protein(s) of a ligand is/are determined by comparing the differences of protein abundances in the ligand group and the control group. The affinity between a ligand and its targets can be evaluated by dose dependent experiments. This method does not require the chemical modification of the ligand and has the feature of high specificity. Furthermore, in certain embodiments, the targets identified by SIP method are complementary to those identified by thermal proteome profiling (TPP) method.