公开(公告)号：US20250027184A1

公开(公告)日：2025-01-23

申请号：US18754272

申请日：2024-06-26

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Guoyong Huang ,  Jiawei Wen ,  Erkang Feng ,  Wenjie Zhang ,  Mingshuai Wu ,  Tongjun Shen

IPC: C22B34/12 ,  C22B1/02 ,  C22B7/00 ,  H01M10/0525

Abstract: A method for preparing self-doped titanium-niobium oxide negative electrode material using a waste titanium dioxide carrier includes preparing self-doped TiNb2O7 negative electrode material for lithium-ion battery by using waste titanium dioxide carrier comprises the following steps: S1. converting a waste titanium dioxide carrier into TiO2 powder with the Ti content of ≥95% and the Al content of 0.1-4.0%, based on the weight of oxide, respectively; and S2. mixing the TiO2 powder and Nb2O5 powder to form a mixture, roasting the mixture, and collecting the generated Al self-doped TiNb2O7, so as to obtain the self-doped TiNb2O7 negative electrode material. According to the method disclosed by the present invention, impurities represented by TiO2 and Al2O3 in the waste titanium dioxide carrier can be directly recycled, a self-doped TiNb2O7 (titanium niobium oxide) negative electrode material.

公开(公告)号：US12196722B2

公开(公告)日：2025-01-14

申请号：US17777594

申请日：2020-11-25

Applicant: China University of Petroleum-Beijing

Inventor： Chengyun Ma ,  Yongcun Feng ,  Jingen Deng

IPC: G01N3/12 ,  E21B21/00 ,  E21B49/00 ,  G01N15/02 ,  G01N15/08 ,  G01N33/24

Abstract: A dynamic crack leaking stoppage evaluation experiment device includes a crack simulation experiment instrument having a dynamic crack simulation mechanism. The dynamic crack leaking stoppage evaluation experiment device can simulate a dynamic change process of a crack from a closed state to an open state. An experiment method can be applied to study a variation range of the width of the crack that have been subjected to self-adaptive leaking stoppage with various combinations of leaking stoppage materials and under different increments, and the method can also be applied to quantitatively study on effecting patterns of rheological parameters and hydraulic parameters of well drilling fluid on stability of a leaking stoppage layer in the dynamic crack, so that enabled is not only simulation of leaking stoppage process of a dynamic crack, but also real-time monitoring and evaluation on leaking stoppage effect and leaking stoppage location inside the dynamic crack.

公开(公告)号：US20240413353A1

公开(公告)日：2024-12-12

申请号：US18496198

申请日：2023-10-27

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Guoyong Huang ,  Jiawei Wen ,  Maolin Tian ,  Jian Cui ,  Xueli Wang ,  Wenjie Zhang ,  Mingshuai Wu ,  Tongjun Shen

IPC: H01M4/92

Abstract: A method includes 1) removal oil from aluminum-based platinum rhenium-containing spent catalysts; 2) mixing the spent catalyst and sodium hydroxide powder and heating in an oxygen-free environment to obtain a clinker; 3) leaching the clinker in a weakly alkaline aqueous solution to obtain a first leach solution containing the elements Al and Re and a first leach residue containing Pt and Re; 4) converting the first leaching solution into a sodium meta-aluminate solution and a sodium perrhenate solution; 5) adding an aqueous solution of an acidic reagent and an aqueous solution of an oxidizing reagent to the first leaching residue for oxidizing acid leaching to obtain a second leaching solution containing precursors including platinum and rhenium; 6) reducing and loading the precursors on a carbon carrier to obtain the modified platinum based catalyst for fuel cell. The method enables the recovery of Re and Al elements from spent catalysts.

公开(公告)号：US12129432B1

公开(公告)日：2024-10-29

申请号：US18372581

申请日：2023-09-25

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Jirui Hou ,  Infant Raj ,  Yuchen Wen ,  Zhuo Lu ,  Lixiao Xiao

IPC: C09K8/584 ,  C09C1/00 ,  C09C3/08 ,  C09C3/10 ,  C09K8/588 ,  E21B43/16

CPC classification number: C09K8/584 ,  C09C1/0003 ,  C09C3/08 ,  C09C3/10 ,  C09K8/588 ,  E21B43/16 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/24 ,  C09K2208/10

Abstract: A functionalized molybdenum disulfide nanosheet and its preparation method and application, where the preparation method includes steps below: mixing a solvent, 1 part by weight of lipoic acid and 5-10 parts by weight of a first compound for 2-4 h to obtain a mixture; adding 0.05-0.1 parts by weight of 1-hydroxybenzotriazole into the mixture, mixing for 24-48 h, and drying to obtain an intermediate product; performing ultrasonic treatment or heat treatment on a raw material-solution system to obtain a functionalized molybdenum disulfide nanosheet, where the raw material-solution system includes 5-10 parts by weight of the molybdenum disulfide nanosheet, 1 part by weight of the intermediate product and saline water, the first compound contains an ethylene oxide group and an alkylamine chain, the number of carbon atoms in the alkylamine chain is 12-18, and the number of the ethylene oxide group is 2-15.

公开(公告)号：US12123821B2

公开(公告)日：2024-10-22

申请号：US18537463

申请日：2023-12-12

Applicant: China University of Petroleum (Beijing)

Inventor： Hao Chen ,  Xiliang Liu ,  Weiming Cheng ,  Mingsheng Zuo ,  Borui Li ,  Baoxi Yang ,  Yi Wu ,  Haipeng Liu ,  Xinyu Qi ,  Feng Luo ,  Linxi Yang ,  Wen Liu ,  Pengbo Li

IPC: G01N15/08 ,  G01N33/24 ,  E21B43/16

CPC classification number: G01N15/0893 ,  G01N33/24 ,  E21B43/164

Abstract: The present disclosure discloses a combined apparatus for experimentation on different storage modes of carbon dioxide, which comprises a displacement device, a storage reaction device and a measuring device, wherein the displacement device comprises a displacement pump, and an intermediate oil-water container and an intermediate carbon dioxide container that are arranged in parallel, the displacement pump is connected to a first end of the parallel connection of the intermediate oil-water container and the intermediate carbon dioxide container, and an inlet end of the storage reaction device is connected to a second end of the parallel connection of the intermediate oil-water container and the intermediate carbon dioxide container; the measuring device comprises a weigher, a first pressure detector, a gas-liquid separator, a gas meter and a mineral analyzer, wherein the first pressure detector is arranged in the intermediate oil-water container, and the gas-liquid separator is connected to the outlet end of the storage reaction device. Thus, the storage amount of carbon dioxide in different storage modes can be evaluated by means of a single apparatus. Compared with the prior art in which different storage experiments are performed separately.

公开(公告)号：US12115522B2

公开(公告)日：2024-10-15

申请号：US17390123

申请日：2021-07-30

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Liang Zhao ,  Jinsen Gao ,  Butian Xia ,  Lixia Dong ,  Jingye Chen ,  Yuhao Zhang ,  Chunming Xu

IPC: B01J29/40 ,  B01J21/04 ,  B01J23/10 ,  B01J29/70 ,  B01J35/00 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  C10G45/12

CPC classification number: B01J29/405 ,  B01J21/04 ,  B01J23/10 ,  B01J29/40 ,  B01J29/70 ,  B01J35/19 ,  B01J37/0201 ,  B01J37/0207 ,  B01J37/04 ,  B01J37/082 ,  C10G45/12 ,  B01J2229/18 ,  B01J2229/20 ,  C10G2300/104 ,  C10G2300/202 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2300/70 ,  C10G2400/02

Abstract: Provided are an in situ bifunctional catalyst for deep desulfurization and increasing octane number of gasoline, and its preparation method and application. The bifunctional catalyst includes a modified catalyst carrier and a loaded active metal, where the modified catalyst carrier is a composite carrier prepared through mixing γ-Al2O3 and an acidic molecular sieve by a binder and calcining. When the bifunctional catalyst provided by the present application is used for hydrodesulfurization of gasolines, deep desulfurization, olefin reduction and octane number preservation can be realized simultaneously, thereby obtaining a high-quality oil product.

公开(公告)号：US20240228880A1

公开(公告)日：2024-07-11

申请号：US18322766

申请日：2023-05-24

Applicant: CHINA UNIVERSITY OF PETROLEUM—BEIJING

Inventor： Qichao LV ,  Tongke ZHOU ,  Zhengen GAO ,  Abdolhossein HEMMATI-SARAPARDEH ,  Zilong LIU ,  Hossein JALALIFAR ,  Rong ZHENG ,  Longxuan LI ,  Zhaoxia DONG

IPC: C09K23/16

CPC classification number: C09K23/16

Abstract: An aqueous carbon dioxide foam stabilized by organic Janus nanosheets, a preparation method and application thereof. The preparation method can be provided as: S1: subjecting molecules with hydrophobic tail to spontaneous and ordered arrangement in a mixture of ethanol and water; S2: adding molecules with hydrophilic head to the solution of S1, and adjusting a pH value to 6.0-6.5 to perform a synthesis of organic Janus nanosheet monomers; S3: adding ethanol to the solution of S2, and adjusting the pH value to 6.0-6.5 to perform a heating reflux; then adjusting the pH value to 7.0-8.0, and adding sodium ethylate, adjusting a temperature to 70-85° C. to perform a reaction under an inert atmosphere, and then adjusting the pH to 8.0-9.0, and stirring to be completely dissolved. The aqueous CO2 foam is prepared from CO2 and a liquid phase.

公开(公告)号：US11998899B2

公开(公告)日：2024-06-04

申请号：US17390820

申请日：2021-07-30

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Liang Zhao ,  Jinsen Gao ,  Butian Xia ,  Lixia Dong ,  Jingye Chen ,  Yuhao Zhang ,  Chunming Xu

IPC: B01J29/40 ,  B01J21/04 ,  B01J23/10 ,  B01J29/70 ,  B01J35/00 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  C10G45/12

CPC classification number: B01J29/405 ,  B01J21/04 ,  B01J23/10 ,  B01J29/40 ,  B01J29/70 ,  B01J35/19 ,  B01J37/0201 ,  B01J37/0207 ,  B01J37/04 ,  B01J37/082 ,  C10G45/12 ,  B01J2229/18 ,  B01J2229/20 ,  C10G2300/104 ,  C10G2300/202 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2300/70 ,  C10G2400/02

Abstract: Provided are a bifunctional catalyst for deep desulfurization and gasoline quality improvement and a preparation method therefore and a use thereof. The bifunctional catalyst includes a modified catalyst and a loaded active metal, where the modified catalyst carrier is a γ-Al2O3 modified with a rare earth element, or the modified catalyst carrier is a composite carrier prepared by mixing and calcinating γ-Al2O3 and an acid molecular sieve through a binder, and then modifying with the rare earth element. The bifunctional catalyst for deep desulfurization and gasoline quality improvement can achieve deep desulfurization of high-sulfur fluid catalytic cracking gasoline, and ensure no significant loss of octane number under relatively mild conditions.

公开(公告)号：US20240076961A1

公开(公告)日：2024-03-07

申请号：US17985860

申请日：2022-11-13

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Rukuan CHAI ,  Yuetian LIU ,  Wenkuan ZHENG ,  Jingpeng LI ,  Liang XUE ,  Jingru WANG ,  Yuting HE

IPC: E21B41/00 ,  B01D53/62 ,  B01D53/90 ,  B01J23/825 ,  B01J23/835 ,  E21B43/114 ,  E21B43/16 ,  E21B43/38

CPC classification number: E21B41/0064 ,  B01D53/62 ,  B01D53/90 ,  B01J23/825 ,  B01J23/835 ,  E21B43/114 ,  E21B43/164 ,  E21B43/38 ,  B01D2221/04 ,  B01D2257/504 ,  B01J2523/17

Abstract: The present invention provides a mixed injection fluid and a corresponding method for enhancing CO2 sequestration and oil recovery, which is a method of the geothermal driven CO2 catalytic reduction for enhancing CO2 sequestration and oil recovery. In the present invention, a technical solution of the liquid nitrogen fracturing, an injection fluid injection, and the catalysis transportation and storage were adopted, which makes full use of the thermal energy of deep geothermal reservoir in combination with nano-Cu-based catalysts to activate the hydrothermal cracking reaction of crude oil and CO2 thermal reduction reaction, so to simultaneously enhance crude oil recovery and CO2 sequestration, fundamentally solving the existing problems of CO2-EOR technologies. Moreover, CO2 thermal catalytic reduction products can also work as a surfactant to accelerate the desorption crude oil from the rock surface and decrease the interfacial tension, and finally EOR.

公开(公告)号：US20240046120A1

公开(公告)日：2024-02-08

申请号：US18355700

申请日：2023-07-20

Applicant: China University of Petroleum-Beijing

Inventor： Leilei YANG ,  Keyu LIU ,  Wei YANG ,  Hui WANG ,  Wenhao YANG ,  Zijie ZHOU ,  Ke XU ,  Yinglin CAO ,  Xiaowei LI ,  Yi LIU ,  Dawei WANG ,  Shu XU ,  Ziyang SONG

IPC: G06N5/022

CPC classification number: G06N5/022

Abstract: The present disclosure provides a training method and a prediction method for a diagenetic parameter prediction model based on an artificial intelligence algorithm, which includes: obtaining a plurality of diagenesis samples each including diagenetic condition parameters and an actual diagenetic parameter evolved therefrom; constructing an initial diagenetic parameter prediction model based on the diagenesis samples and a total dimension of the diagenetic condition parameters; and training the initial diagenetic parameter prediction model with the diagenesis samples so as to obtain a trained diagenetic parameter prediction model. The present disclosure can obtain a diagenetic parameter prediction model by training with the existing diagenesis samples, thereby solving problems of large amount of calculation, high uncertainty and large deviations in the prediction of the diagenetic parameters, which leads to a low evaluation accuracy of reservoirs and limits the oil and gas exploration.