Carbon dioxide treatment device and method of producing carbon compound

    公开(公告)号:US11840768B2

    公开(公告)日:2023-12-12

    申请号:US17680418

    申请日:2022-02-25

    发明人: Hiroshi Oikawa

    摘要: What is provided is a carbon dioxide treatment device having high energy efficiency for recovering and reducing carbon dioxide, and a method of producing a carbon compound using the carbon dioxide treatment device. In a carbon dioxide treatment device (100) including a recovery device (1) that recovers carbon dioxide, an electrochemical reaction device (2) that electrochemically reduces carbon dioxide recovered by the recovery device (1), and a homologation reaction device (4) that increases the number of carbons by multimerizing ethylene generated when carbon dioxide is reduced in the electrochemical reaction device (2), and in an absorption unit (12) of the recovery device (1), carbon dioxide gas is absorbed into an absorption liquid (A1), an absorption liquid (A2) that has absorbed carbon dioxide is heated in a discharge unit (13), and a carbon dioxide gas (G3) is discharged, and heat generated in a multimerization reaction in a homologation reaction device (4) is used to heat the absorption liquid (A2) in the discharge unit (13).

    PURIFICATION APPARATUS AND PURIFICATION METHOD FOR NON-METAL SEMICONDUCTOR MATERIAL

    公开(公告)号:US20240228286A1

    公开(公告)日:2024-07-11

    申请号:US18291104

    申请日:2021-07-05

    IPC分类号: C01B25/04

    摘要: A purification apparatus and purification method of a non-metallic semiconductor material relate to the field of preparation of high-purity materials, and are especially applicable to preparation of high-purity non-metal materials, in particular to an apparatus and method for purifying a non-metallic semiconductor material by means of a metal melt. The apparatus includes a furnace body, a pressure balance valve, a crucible disposed in the middle of the lower part of the furnace body, a heating and supporting structure for the crucible, a liftable injection mechanism disposed right above the crucible, and a liftable and rotatable recovery mechanism disposed next to the liftable injection mechanism. The method is completed based on the purification apparatus, and includes: injecting the gasified non-metal material into the metal melt under a high pressure environment; reducing the ambient pressure, and collecting the bubbles volatilized from the metal melt to obtain the purified non-metal material. The technical solution proposed in the present invention can be used to effectively remove impurities in the non-metal material, especially remove elements of similar properties. The apparatus is highly integrated and easy to control, and the method is simple.

    HIGH PRESSURE DESORPTION OF HYDROGEN CHLORIDE GAS

    公开(公告)号:US20230331551A1

    公开(公告)日:2023-10-19

    申请号:US18006457

    申请日:2021-07-20

    申请人: SGL CARBON SE

    IPC分类号: C01B7/07 B01D3/06

    摘要: A method for producing a hydrogen chloride. A pressurized highly concentrated hydrochloric acid having a hydrogen chloride concentration of 35% by weight or above is fed into a high pressure desorption device, the high pressure desorption device is operated at a pressure Pdes of 2 bar or above and at a temperature T from 110 to 200° C. in the bottom of the high pressure desorption device, and the hydrogen chloride is desorbed in the high pressure desorption device.