Dehydrogenation process of dimethylnaphthalene using metal catalyst
    51.
    发明申请
    Dehydrogenation process of dimethylnaphthalene using metal catalyst 有权
    使用金属催化剂对二甲基萘进行脱氢处理

    公开(公告)号:US20080051618A1

    公开(公告)日:2008-02-28

    申请号:US11706404

    申请日:2007-02-15

    IPC分类号: C07C5/32

    摘要: Disclosed herein is a process of producing high purity and high yield dimethylnaphthalene by dehydrogenating a dimethyltetralin isomer using a metal catalyst for dehydrogenation. The metal catalyst contains a carrier selected from alumina (Al2O3), silica (SiO2), a silica-alumina mixture and zeolite. The metal catalyst also contains 0.05 to 2.5% by weight of platinum (Pt), 0.1 to 3.0% by weight of tin (Sn) or indium (In), 0.5 to 15.0% by weight of at least one selected from the group consisting of potassium (K), magnesium (Mg) and cesium (Cs), 0.3 to 3.0% by weight of chlorine, and 0.01 to 3.0 % by weight of zinc (Zn) or gallium (Ga) as active components based on an element weight of the final catalyst.

    摘要翻译: 本文公开了通过使用用于脱氢的金属催化剂使二甲基四氢萘异构体脱氢来生产高纯度和高收率的二甲基萘的方法。 金属催化剂含有选自氧化铝(Al 2 O 3 O 3),二氧化硅(SiO 2/2),二氧化硅 - 氧化铝混合物和沸石 。 金属催化剂还含有0.05〜2.5重量%的铂(Pt),0.1〜3.0重量%的锡(Sn)或铟(In),0.5〜15.0重量%的选自以下的至少一种: 钾(K),镁(Mg)和铯(Cs),0.3〜3.0重量%的氯和0.01〜3.0重量%的作为活性成分的锌(Zn)或镓(Ga) 最终催化剂。

    Method for producing naphthalenedicarboxylic acid
    52.
    发明申请
    Method for producing naphthalenedicarboxylic acid 审中-公开
    萘二羧酸的制造方法

    公开(公告)号:US20070270609A1

    公开(公告)日:2007-11-22

    申请号:US11497283

    申请日:2006-08-02

    IPC分类号: C07C51/16 C07C51/255

    摘要: A method for producing naphthalenedicarboxylic acid comprising the steps of: dissolving 2,6-dimethylnaphthalene in acetic acid solvent; oxidizing the product from the dissolution process using oxygen and a diluent gas; crystallizing naphthalenedicarboxylic acid that has been produced from the oxidation process; and separating the crystallized naphthalenedicarboxylic acid, wherein the amount of the diluent gas being discharged from and recycled to the oxidation process is controlled during the oxidation process, and the amount of mother liquor being recycled to the dissolution process after crystallization is controlled during the separation process, is provided.

    摘要翻译: 一种生产萘二甲酸的方法,包括以下步骤:将2,6-二甲基萘溶于乙酸溶剂; 使用氧气和稀释气体从溶解过程中氧化产物; 结晶从氧化过程产生的萘二甲酸; 并分离结晶的萘二甲酸,其中在氧化过程中控制从氧化过程中排出并再循环的稀释气体的量,并且在分离过程期间控制结晶后再循环到溶解过程中的母液的量 ,被提供。

    High tenacity polyethylene-2, 6-naphthalate fibers
    53.
    发明申请
    High tenacity polyethylene-2, 6-naphthalate fibers 审中-公开
    高强度聚乙烯-2,6-萘二甲酸纤维

    公开(公告)号:US20070116951A1

    公开(公告)日:2007-05-24

    申请号:US11654513

    申请日:2007-01-18

    IPC分类号: D02G3/00

    摘要: The present invention relates to a high strength polyethylene-2,6-naphthalate fiber produced by a method comprising controlling the stress-strain curve and fine structure of an undrawn yarn such that the drawability of the undrawn yarn in a drawing step is improved. The industrial polyethylene-2,6-naphthalate fiber with high strength according to the present invention shows high strength and low shrinkage, and a treated cord formed from this fiber has improved dimensional stability and high strength, such that it can be advantageously employed as a fibrous reinforcement material of rubber products such as tires.

    摘要翻译: 本发明涉及一种高强度的聚2,6-萘二甲酸乙二醇酯纤维,它是通过控制未拉伸丝的应力 - 应变曲线和精细结构的方法制成的,使拉伸步骤中未拉伸丝的拉伸性提高。 根据本发明的具有高强度的工业聚2,6-萘二甲酸乙二醇酯纤维显示出高强度和低收缩率,并且由该纤维形成的处理帘线具有改进的尺寸稳定性和高强度,使得其可有利地用作 橡胶制品如轮胎的纤维增强材料。

    MULTI-CHANNEL CHARGING SYSTEM
    55.
    发明公开

    公开(公告)号:US20240246445A1

    公开(公告)日:2024-07-25

    申请号:US18016675

    申请日:2021-11-26

    IPC分类号: B60L53/67 B60L53/53 B60L53/66

    摘要: A multi-channel charging system includes a power source supplying power, a transformer connected to the power source, a plurality of charging ports connected to the transformer and charging or discharging each object, a converter converting power between the power source and the transformer or between the object and the transformer, and a controller controlling the converter or each of the objects, wherein the controller transmits/receives a signal to or from each of the objects, controls power transmission/reception between each of the objects, or controls power transmission/reception between the power source and the objects.

    SENSORLESS PREDICTION METHOD OF OVERCURRENT IN ISOLATED BIDIRECTIONAL DC-DC CONVERTER

    公开(公告)号:US20220360160A1

    公开(公告)日:2022-11-10

    申请号:US17623408

    申请日:2020-12-30

    IPC分类号: H02M1/00 H02M1/32 H02M3/335

    摘要: Proposed is a method for accurately predicting an overcurrent flowing inside an isolated bidirectional DC-DC converter even without using a current sensor on primary and secondary sides of a transformer. In the converter according to the present disclosure, an average value of the inductor current is calculated after deriving inflection point current values by respectively modeling a current waveform for an inductor current of the transformer. A secondary side output current average value is calculated by comparing the calculated average value of the inductor current with a secondary side capacitor current average value of the converter at no load. Next, an error between the secondary side output current average value and an actually measured secondary side output current is calculated, and the inflection point current values of the current waveform are updated using a gain for reducing the error through PI control, whereby the overcurrent may be predicted.

    Ballistic cloth using a unidirectional-oriented aramid sheet and polyethylene film and method for manufacturing the same

    公开(公告)号:US10442167B2

    公开(公告)日:2019-10-15

    申请号:US15100424

    申请日:2014-10-14

    摘要: The present invention relates to a ballistic cloth using a unidirectional aramid sheet and a polyethylene film and a method for manufacturing the same and, more particularly, is characterized in that aramid multifilament layers, which have monofilaments stacked and arranged in one direction, are arranged perpendicularly, a polyethylene film, which plays both the role of a binder and the role of protecting the sheet surface, is arranged between the aramid multifilament layers to manufacture a ply, and the ply is inserted into a mold and undergoes a pressing process and a cooling process, thereby manufacturing a ballistic cloth. A ballistic cloth manufactured by the method according to the present invention is advantageous in that use of a polyethylene film having a low softening point between unidirectional aramid sheets improves adhesiveness between the sheets and also improves the slip factor when the same ply is stacked, thereby exhibiting excellent ballistics performance. In addition, since the binder is solely made of a film, odor-free, environment-friendly manufacturing processes can be employed, no freezing is needed during storage; improved flexibility of the sheet facilitates delivery and distribution of impacts of bullets when the ballistic cloth is worn, thereby improving the ballistics performance and making the ballistic cloth further lightweight; and the polyethylene film, which is the protective layer of the unidirectional aramid sheets, has an adhesive strength of at least 2 kgf, thereby improving the ballistics performance.

    SHORTING DEVICE FOR GROUNDING OF CONVERTER
    58.
    发明申请

    公开(公告)号:US20180375424A1

    公开(公告)日:2018-12-27

    申请号:US16062371

    申请日:2016-06-22

    IPC分类号: H02M1/32 H02B5/01 H01R11/14

    摘要: A shorting device for facilitating the grounding of a converter to which a plurality of sub modules is connected in series. The device includes: a moving rod (40) provided on a main frame (10) on which sub modules (S) are provided, and moving in the direction traversing the sub modules (S); and contactors (50) provided at the moving rod (40) to be electrically connected to each sub module outer casing (1) according to the movement of the moving rod (40). In addition, a connection means (C) electrically connects the contactor (50), the sub module outer casing (1), and another adjacent sub module outer casing (1) to enable simultaneous grounding thereof. This invention connects the sub module outer casings (1), which form the converter, through the operation of the shorting device to ground the sub modules (S).

    METHOD FOR CONTROLLING POWER GRID FREQUENCY OF MULTIPLE ENERGY STORAGE SYSTEMS, AND SYSTEM THEREFOR

    公开(公告)号:US20180006607A1

    公开(公告)日:2018-01-04

    申请号:US15538642

    申请日:2015-12-22

    IPC分类号: H03D7/16

    摘要: The present invention relates to a power management system (PMS) for multiple energy storage systems (ESS) that is for integrated management of the system having multiple ESS for controlling a frequency and having a hierarchical control structure. The PMS for ESS comprises: a plurality of ESS; a local management system (LMS) for managing one or more ESS of the plurality of ESS for each local unit; an ESS Controller (ESSC) for general management of the LMS, judging a state of the LMS and determining an output value of one or more ESS in the LMS, and transmitting the determined output value to the respective ESS; and a PMS for general management of the entire system comprising the plurality of ESS, the LMS and the ESSC, judging the state of the entire system and participating in a power grid frequency control market through a grid operator contract, controlling the output of the LMS, and adjusting a control parameter for output control.