Catalyst for the conversion of natural or associated gas into synthesis gas in an autothermal reforming process and method for preparing the same

    公开(公告)号:US11213805B2

    公开(公告)日:2022-01-04

    申请号:US16470190

    申请日:2017-11-02

    摘要: A catalyst in a calcined state has a specific surface area of 20-50 m2/g of catalyst, and a specific surface area of nickel metal after reduction of the catalyst of 8 to 11 m2/g, wherein the average particle size of nickel metal is 3-8 nm, the dispersion of the particles is 10-16%, and the content of nickel is 5-15 wt. % based on the weight of calcined catalyst. A support has a specific surface area of 40-120 m2/g with a pore volume of the support of 0.2-0.4 cm3/g, wherein the support is selected from a mixture of zirconium oxide and cerium oxide or magnesium oxide, cerium oxide and the ballast being zirconium oxide. The catalyst further contains a promoter selected from the group consisting of palladium and ruthenium, in an amount of from 0.01 to 0.5 wt. %. The catalyst is prepared by co-precipitation with ammonium hydroxide from a solution containing nickel, cerium and zirconium precursors and distilled water or from a solution containing nickel, cerium, zirconium, and magnesium precursors and distilled water, and having a pH of 8.0-9.0. The process is carried out under agitation at a temperature of 40-45° C. for 1-2 hours, followed by filtration, drying at a temperature of 100-110° C. for 6-8 hours, and calcining at a temperature of 400-650° C. for 4-6 hours. The invention provides a high average conversion of natural/associated gas of at least 90% in an autothermal reforming reaction of natural or associated gas, and a high synthesis gas output of at least 7000 m3/m3cat·h.

    Planar Thermocatalytic Sensor of Combustable Gases and Vapours

    公开(公告)号:US20180128760A1

    公开(公告)日:2018-05-10

    申请号:US15570039

    申请日:2016-04-26

    IPC分类号: G01N25/38 G01N25/32

    摘要: The invention relates to gas analysis and to combustible gas and vapour analyzers based on a thermocatalytic operating principle. The subject of the invention is a sensor the sensitive elements of which are manufactured by planar techniques that can be easily automated. The main distinguishing feature is that a working sensitive element and a reference sensitive element are colocated in a single micron-sized structural component (a microchip) on a common substrate made of porous anodic aluminium oxide. The design of the sensitive elements provides for film-wise heat transfer from heated parts of the working and reference sensitive elements. Measuring microheaters which heat the working and reference sensitive elements up to working temperatures and provide for differentially measuring an output signal in a measuring bridge circuit are spaced apart at opposite sides of the anodic aluminium oxide substrate and are disposed on arms projecting beyond the common substrate configuration. The sensitive elements are disposed in a reaction chamber having restricted diffusion access via a calibrated orifice, and the diameter of regular pores in the microchip substrate is increased to sizes that provide for a predominantly molecular diffusion mode in the pores (100 nm or more).

    PROPPANT MATERIAL AND METHOD FOR PRODUCING SAME
    5.
    发明申请
    PROPPANT MATERIAL AND METHOD FOR PRODUCING SAME 审中-公开
    专用材料及其生产方法

    公开(公告)号:US20160075939A1

    公开(公告)日:2016-03-17

    申请号:US14786642

    申请日:2014-05-13

    IPC分类号: C09K8/80

    CPC分类号: C09K8/80 C08F220/10

    摘要: The material for proppant and method for producing the same relate to the chemistry of high-molecular weight compounds, and more particularly, to polymer materials with high requirements for physical and mechanical properties, for instance, for the production of proppants, i.e., propping granules, used in the oil and gas production by a method of hydraulic fracturing of formation. The technical result achieved by implementation of the present invention is an increase in thermal strength of the proppant material providing for a compressive strength of at least 150 MPa at a temperature of not less than 100° C. The method consists in the following. A mixture of oligocyclopentadienes is obtained by heating dicyclopentadiene (DCPD) to a temperature of 150-220° C. and holding at this temperature for 15-360 minutes. The oligomerization of dicyclopentadiene occurs. The mixture of oligomers is cooled down to 20-50° C., and polymer stabilizers, radical initiators, methacrylates and a catalyst are sequentially added thereto. The resultant polymer matrix is heated up to a temperature of 50-340° C. and is held at this temperature for 1-360 minutes, and thereafter is cooled down to room temperature. A metathesis polymerization (MP) and radical polymerization (RP) cross-linkage of the mixture of oligocyclopentadienes with methacrylic esters occurs.

    摘要翻译: 用于支撑剂的材料及其制备方法涉及高分子量化合物的化学性质,更具体地说涉及对物理和机械性能要求高的聚合物材料,例如用于生产支撑剂,即支撑颗粒 用于石油和天然气生产中通过水力压裂成形的方法。 通过实施本发明的技术结果是在不低于100℃的温度下提供抗压强度至少为150MPa的支撑剂材料的热强度增加。该方法包括以下。 通过将二环戊二烯(DCPD)加热至150-220℃并在该温度下保持15-360分钟来获得低聚环戊二烯的混合物。 发生二环戊二烯的低聚。 将低聚物的混合物冷却至20-50℃,并向其中依次加入聚合物稳定剂,自由基引发剂,甲基丙烯酸酯和催化剂。 将所得聚合物基体加热至50-340℃,并在该温度下保持1-360分钟,然后冷却至室温。 发生低聚环戊二烯与甲基丙烯酸酯的混合物的易位聚合(MP)和自由基聚合(RP)交联。

    SEISMIC SENSOR AND METHODS RELATED THERETO

    公开(公告)号:US20220252748A1

    公开(公告)日:2022-08-11

    申请号:US17614283

    申请日:2019-05-28

    发明人: Mathias CONTANT

    IPC分类号: G01V1/18 G01V1/16

    摘要: Example seismic sensors and methods relating thereto are disclosed. In an embodiment, the seismic sensor includes an outer housing and a proof mass disposed in the inner cavity of the outer housing. In addition, the seismic sensor includes a first biasing member positioned in the inner cavity between the proof mass and an outer housing upper end that is configured to flex in response to axial movement of the outer housing relative to the proof mass. Further, the seismic sensor includes a second biasing member positioned in the inner cavity between the first biasing member and the outer housing upper end. Still further, the seismic sensor includes a sensor element positioned in the inner cavity between the proof mass and an outer housing lower end that is configured to generate a potential in response to movement of the outer housing relative to the proof mass.

    CATALYST FOR THE CONVERSION OF NATURAL OR ASSOCIATED GAS INTO SYNTHESIS GAS IN AN AUTOTHERMAL REFORMING PROCESS AND METHOD FOR PREPARING THE SAME

    公开(公告)号:US20200016578A1

    公开(公告)日:2020-01-16

    申请号:US16470190

    申请日:2017-11-02

    摘要: A catalyst in a calcined state has a specific surface area of 20-50 m2/g of catalyst, and a specific surface area of nickel metal after reduction of the catalyst of 8 to 11 m2/g, wherein the average particle size of nickel metal is 3-8 nm, the dispersion of the particles is 10-16%, and the content of nickel is 5-15 wt. % based on the weight of calcined catalyst. A support has a specific surface area of 40-120 m2/g with a pore volume of the support of 0.2-0.4 cm3/g, wherein the support is selected from a mixture of zirconium oxide and cerium oxide or magnesium oxide, cerium oxide and the ballast being zirconium oxide. The catalyst further contains a promoter selected from the group consisting of palladium and ruthenium, in an amount of from 0.01 to 0.5 wt. %. The catalyst is prepared by co-precipitation with ammonium hydroxide from a solution containing nickel, cerium and zirconium precursors and distilled water or from a solution containing nickel, cerium, zirconium, and magnesium precursors and distilled water, and having a pH of 8.0-9.0. The process is carried out under agitation at a temperature of 40-45° C. for 1-2 hours, followed by filtration, drying at a temperature of 100-110° C. for 6-8 hours, and calcining at a temperature of 400-650° C. for 4-6 hours. The invention provides a high average conversion of natural/associated gas of at least 90% in an autothermal reforming reaction of natural or associated gas, and a high synthesis gas output of at least 7000 m3/m3cat·h.

    POLYMER PROPPANT AND METHOD FOR PRODUCING SAME
    10.
    发明申请
    POLYMER PROPPANT AND METHOD FOR PRODUCING SAME 有权
    聚合物专利及其生产方法

    公开(公告)号:US20160130498A1

    公开(公告)日:2016-05-12

    申请号:US14786623

    申请日:2014-05-13

    IPC分类号: C09K8/80

    CPC分类号: C09K8/80 C08F32/06 C08F132/06

    摘要: The polymer proppant and method for producing the same relate to oil and gas production technology using materials of high-molecular weight compounds with higher requirements for physical and mechanical properties. The proppant is used as propping granules utilized in the oil and gas production by a method of hydraulic fracturing of formation. The technical result achieved by implementation of the present invention is an increase in thermal strength of the proppant whose material provides a compressive strength of at least 150 MPa at a temperature of not less than 100° C. The polymer proppant represents microspheres of metathesis-radically cross-linked mixture of oligocyclopentadienes.

    摘要翻译: 聚合物支撑剂及其制备方法涉及使用对物理和机械性能要求较高的高分子量化合物材料的油气生产技术。 支撑剂用作石油和天然气生产中的支撑颗粒,通过水力压裂成形的方法。 通过实施本发明实现的技术结果是在不低于100℃的温度下其材料提供至少150MPa的抗压强度的支撑剂的热强度的增加。聚合物支撑剂表示复分解的微球 低聚环戊二烯的交联混合物。