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    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY
    591.
    发明申请
    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY 有权

    公开(公告)号：US20210148203A1

    公开(公告)日：2021-05-20

    申请号：US16627473

    申请日：2018-07-11

    Applicant: BASF SE

    Inventor： Christian BITTNER ,  Guenter OETTER ,  Jack F. TINSLEY ,  Hans-Christian RATHS ,  Marcel Patrik KIENLE ,  Sebastian Alexander WEISSE

    IPC: E21B43/16 ,  C09K8/584

    Abstract: The present invention relates to a method for the production of crude oil from subterranean, oil-bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant mixture, injecting said surfactant composition into the subterranean, oil-bearing formation through at least one injection well, thereby reducing the crude oil-water interfacial tension to less than 0.1 mN/m, and withdrawing crude oil from the formation through at least one production well, wherein the surfactant mixture comprises at least a surfactant (A) having the general formula R1—O—(CH2CH(R2)O)a—(CH2CH(CH3)O)b—(CH2CH2O)c—R3—Y−M+ (I) and a solubility enhancer (B) having the general formula R4—O—(CH2CH(CH3)O)x—(CH2CH2O)y—R3—Y−M+ (II), wherein R1 to R4, a, b, c, x, y, Y and M have the meaning as defined the the description and claims. The invention further relates to said aqueous surfactant composition and methods for preparing the same as well as the use of solubility enhancer (B) for enhancing the solubility of anionic surfactant (A).

    PROCESS FOR PRODUCING A DEACIDIFIED FLUID STREAM
    592.
    发明申请
    PROCESS FOR PRODUCING A DEACIDIFIED FLUID STREAM 有权

    公开(公告)号：US20210147757A1

    公开(公告)日：2021-05-20

    申请号：US17251001

    申请日：2019-05-31

    Applicant: BASF SE

    Inventor： Georg SIEDER ,  Raquel FERNANDEZ RODILES ,  Thomas INGRAM

    IPC: C10L3/10 ,  B01D53/00 ,  B01D53/14 ,  B01D5/00

    Abstract: A process for producing a deacidified fluid stream from a fluid stream comprising methanol and at least one acid gas, comprising a) an absorption step in which the fluid stream is contacted with an absorbent in an absorber to obtain an absorbent laden with methanol and acid gases and an least partly deacidified fluid stream; b) a regeneration step in which at least a portion of the laden absorbent obtained from step a) is regenerated in a regenerator to obtain an at least partly regenerated absorbent and a gaseous stream comprising methanol and at least one acid gas; c) a recycling step in which at least a substream of the regenerated absorbent from step b) is recycled into the absorption step a); d) a condensation step in which a condensate comprising methanol is condensed out of the gaseous stream from step b); wherein the regenerator additionally comprises a rescrubbing section, and the condensate from step d) is recycled into the regenerator partly in the upper region of the rescrubbing zone or above the rescrubbing zone.

    CORE/SHELL TERNARY BLEND AND PREPARATION THEREOF
    593.
    发明申请
    CORE/SHELL TERNARY BLEND AND PREPARATION THEREOF 有权

    公开(公告)号：US20210147675A1

    公开(公告)日：2021-05-20

    申请号：US16616863

    申请日：2018-05-22

    Applicant: BASF SE

    Inventor： Jie CHEN ,  Ming-bo YANG ,  Bo YIN ,  Rui DOU

    IPC: C08L77/06

    Abstract: The invention relates to a ternary blend having a core/shell structure including (1) PA as a matrix, and (2) a core/shell particle. The ternary blend includes 60-80 wt % of PA and 20-40% of core/shell particle based on the total weight of the ternary blend. The shell is EPDM-g-MA, and the core is PP or PC.

    Two-stage method for removing CO2 from synthesis gas
    597.
    发明授权
    Two-stage method for removing CO2 from synthesis gas 有权

    公开(公告)号：US11000796B2

    公开(公告)日：2021-05-11

    申请号：US16320183

    申请日：2017-07-27

    Applicant: BASF SE

    Inventor： Torsten Katz ,  Ralf Notz ,  Christian Kunkelmann

    IPC: B01D53/14 ,  C01B3/52 ,  C10K1/00

    Abstract: In a process for removing CO2 from a fluid stream by means of an aqueous absorption medium, a) the fluid stream is introduced into a first absorption zone and treated with partially regenerated absorption medium, b) the treated fluid stream is treated with regenerated absorption medium in a second absorption zone, giving a fluid stream which has been freed of CO2 and a loaded absorption medium, c) the loaded absorption medium is depressurized in a first flash vessel to a pressure of from 1.2 to 3 bar absolute, giving a sub-partially regenerated absorption medium and a first CO2-comprising gas stream, d) the sub-partially regenerated absorption medium is depressurized in a second flash vessel to a pressure of from 1 to 1.2 bar absolute, giving a partially regenerated absorption medium and a water vapor-comprising, second CO2-comprising gas stream, e) a substream of the partially regenerated absorption medium is fed into the first absorption zone and a further substream of the partially regenerated absorption medium is fed into a stripper in which the partially regenerated absorption medium is thermally regenerated, with regenerated absorption medium and a third CO2-comprising gas stream being obtained and the stripper being operated at a pressure which is at least 0.9 bar higher than the pressure in the first flash vessel, f) the regenerated absorption medium is recirculated to the second absorption zone, g) the water vapor-comprising, second CO2-comprising gas stream is compressed by means of a jet pump and brought into direct heat exchange contact with the loaded absorption medium in the first flash vessel, with the jet pump being operated by means of the third CO2-comprising gas stream. The latent heat of the water vapor-comprising gas streams remains in the process and the use of a costly compressor is dispensable.

    BIODEGRADABLE POLYESTER CAPSULES COMPRISING AN AQUEOUS CORE AND A PESTICIDE
    600.
    发明申请
    BIODEGRADABLE POLYESTER CAPSULES COMPRISING AN AQUEOUS CORE AND A PESTICIDE 有权

    公开(公告)号：US20210100240A1

    公开(公告)日：2021-04-08

    申请号：US16071608

    申请日：2017-01-17

    Applicant: BASF SE

    Inventor： Ewelina Burakowska-Meise ,  Evgueni Klimov ,  Joanna Mecfel-Marczewski ,  Matthias Bratz

    IPC: A01N25/28 ,  A01N37/40

    Abstract: Microcapsules including a capsule shell and a capsule core are disclosed, as well as plant propagation materials including the microcapsules and a process for manufacturing the microcapsules. The capsule shell includes a polyester, and the capsule core includes a water-soluble pesticide and at least 10 wt % of water based on a total weight of the capsule core. A method for controlling undesired insect or mite attack, harmful fungi, and/or undesired vegetation, and/or for regulating the growth of crop plants is also disclosed, wherein the method includes application of the microcapsules. A method of using of the microcapsules to reduce volatility or leaching behavior of the pesticide is also disclosed.

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