The present invention relates to a method for molten metal pyrolysis of hydrocarbons to produce hydrogen gas and carbon. Liquid salt is used to separate produced carbon from the molten metal and to facilitate isolation of produced carbon.

The present invention relates to a process for the continuous production of nitrobenzene by the nitration of benzene with nitric acid and sulphuric acid under adiabatic conditions, not the entire production plant being shut down during a production stop, but the production plant being entirely or at least partly operated in recirculation mode. The invention further relates to a plant for producing nitrobenzene and to a method for operating a plant for producing nitrobenzene.

An industrial microwave ultrasonic reactor has an inner wall liner. A microwave generation device is formed by microwave units distributed on an outer sidewall, or by a microwave pipe disposed outside the reactor and microwave units distributed on the microwave pipe. One end of the microwave pipe communicates with the bottom of the reactor via a connection pipe I, and the other end communicates with the top via a return pipe. A shield is disposed outside the microwave generation device to separate the microwave units from the outside, and a heat removal device is disposed outside the shield. An ultrasonic wave generation device is formed by 10 to 30 sets of ultrasonic pulse units disposed at intervals along the outer sidewall. Each set has 10 to 50 members distributed along the circumferential direction of the reactor. A stirring shaft is fixed below a stirring motor and extends into the reactor.

The present disclosure provides a process for the preparation of perfluoroalkyl sulfenyl chloride by reacting a compound of formula [I] with at least one fluoride compound and thiophosgene. ##STR00001##

A process includes periodically or continuously introducing an olefin monomer and periodically or continuously introducing a catalyst system or catalyst system components into a reaction mixture within a reaction system, oligomerizing the olefin monomer within the reaction mixture to form an oligomer product, and periodically or continuously discharging a reaction system effluent comprising the oligomer product from the reaction system. The reaction system includes a total reaction mixture volume and a heat exchanged portion of the reaction system comprising a heat exchanged reaction mixture volume and a total heat exchanged surface area providing indirect contact between the reaction mixture and a heat exchange medium. A ratio of the total heat exchanged surface area to the total reaction mixture volume within the reaction system is in a range from 0.75 in.sup.1 to 5 in.sup.1, and an oligomer product discharge rate from the reaction system is between 1.0 (lb)(hr.sup.1)(gal.sup.1) to 6.0 (lb)(hr.sup.1)(gal.sup.1).

The current invention relates to a method for producing CO from CO2, comprising the steps of: providing process gas comprising CO2, and optionally CO, to a plasma jet generator; igniting a plasma in the process gas by the plasma jet generator, thereby obtaining a plasma jet comprising CO and O species; introducing the plasma jet into a carbon reaction chamber; extracting product gas from the reaction chamber, said product gas comprising said CO and CO2 and recycling at least part of the product gas and providing said product gas comprising CO and CO2 to a plasma jet generator. The invention also relates to a system for converting CO2 to CO, comprising: a carbon reaction chamber and a plasma jet generator, wherein said gas outlet of the reaction chamber is in fluid communication with the process gas inlet of a plasma jet generator.

A preparation equipment and a process for a nylon salt solution. The preparation equipment includes a suspension preparation device, a first salt formation reactor and a second salt formation reactor. The suspension preparation device includes a feeding unit, a continuous feeding unit, a high-shear pump and a mixing reactor, the high-shear pump and the mixing reactor are cyclically connected with and in communication with each other through two connecting pipelines; the second salt formation reactor includes a second diamine feed pipe, a third diamine feed pipe, a circulation pipeline of the second salt formation reactor and an online near-infrared monitoring equipment located on the circulation pipeline of the second salt formation reactor.