Abstract: A device for recovering the waste heat energy having a Clausius-Rankine circuit with a line system conveying a working medium via which at least one vaporizer for vaporizing the working medium, an expansion device for expanding the vaporized working medium to produce mechanical work, a condenser for fluidizing the vaporized and expanded working medium as well as a delivery pump for condensing and conveying the working medium through the line system are fluidically connected to one another. A compensation tank supplies additional working medium volume and is connected to a fluid line and can be fluidically separated from the line system via a valve that is controllable via a control device connected to a sensor for detecting working medium temperature and/or pressure, such that a working medium volume is transferred from the compensation tank into the line system or from the line system into the compensation tank.

Abstract: The present invention disclosed a preparation method of parylene AF4, which provides a reactant and a reducing agent with the use of catalyst or exposure to UV light with photo-initiator, to shorten the reaction time as a result of minimized the byproduct(s) formation, and obtain high purity (>99.0%) of parylene AF4 product under high concentrated reaction mixture.

Abstract: The invention provides a process for carrying out a photochemical gas-liquid process for halogenating alkylbenzenes, the process being carried out in a photochemical gas-liquid reactor comprising a vessel, a central source of radiation, a gas distributor, and additionally, inner sleeve means arranged concentrically between the source of radiation and the vessel, the inner sleeve means providing for internal recirculation of reaction liquid.