The invention provides a continuous process for the preparation of ethylene glycol and 1, 2-propylene glycol from starting material comprising one or more saccharides, said process being carried out in a reactor system comprising a reactor vessel equipped with an external recycle loop and said process comprising the steps of: i) providing the starting material in a solvent, via an inlet, to the external recycle loop and contacting it therein with a retro-aldol catalyst composition to provide an intermediate stream; ii) then contacting said intermediate stream with hydrogen in the presence of a hydrogenation catalyst composition in the reactor vessel; iii) withdrawing a product stream comprising glycols from the reactor vessel; iv) providing a portion of said product stream, via an outlet, for separation and purification of the glycols contained therein; and v) recycling the remainder of said product stream via the external recycle loop.

The invention refers to a reactor and a method respectively for performing, by means of solid reaction members, a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic media, and a subsequent cleaning of the reactor, said reactor comprising a vessel (11) in which a transformation device (100) has been mounted. The invention also refers to a reactor kit comprising such reactor. The reactor comprises at least one nozzle (15) arranged on the longitudinal inner wall of the vessel (11). The at least one nozzle (15) is arranged to direct a flow of a cleaning fluid (CF) in a direction towards a longitudinal centre axis (L1) of a flow distributor (1) arranged in the vessel (11).

A fuel conditioning apparatus for de-oxygenating a liquid hydrocarbon fuel has a catalyst portion which, in turn, has an inlet portion and an outlet portion. A hydrocarbon fuel stream is fed through the inlet portion and into the catalyst portion where it passes over a catalytically active component. The catalytically active component promotes the reaction of the fuel with the dissolved oxygen in the fuel stream, converting it into less chemically reactive forms and thereby reducing the fuel's propensity to form carbonaceous deposits.

A fuel conditioning apparatus for de-oxygenating a liquid hydrocarbon fuel has a catalyst portion which, in turn, has an inlet portion and an outlet portion. A hydrocarbon fuel stream is fed through the inlet portion and into the catalyst portion where it passes over a catalytically active component. The catalytically active component promotes the reaction of the fuel with the dissolved oxygen in the fuel stream, converting it into less chemically reactive forms and thereby reducing the fuel's propensity to form carbonaceous deposits.

A preparation method of a polyurethane resin including the following steps is provided. A liquid polyamine compound is placed in a continuous reaction system, and the liquid polyamine compound is circulated in the continuous reaction system. A solid bis(cyclic carbonate) and a solid catalyst are placed in the continuous reaction system to mix the solid bis(cyclic carbonate), solid catalyst, and liquid polyamine compound to form a heterogeneous mixture. The heterogeneous mixture is heated in the continuous reaction system in a microwave manner, such that the heterogeneous mixture reacts to form a polyurethane resin.

The present invention relates to the field of biological and chemical transformation as well as physical and chemical trapping. More specifically, the invention relates to a new reactor arrangement for performing, by means of at least one solid reaction member, biological or chemical transformation, or physical or chemical trapping from or release of agents to, a fluidic medium. The reactor arrangement is comprised of an auxiliary reactor having a transformation device and a main reactor. The invention also provides an auxiliary reactor adapted for being connected to a main reactor, a method of using such a reactor arrangement, as well as a process involving the reactor arrangement.

The present invention relates to the field of biological and chemical transformation as well as physical and chemical trapping. More specifically, the invention relates to a new reactor arrangement for performing, by means of at least one solid reaction member, biological or chemical transformation, or physical or chemical trapping from or release of agents to, a fluidic medium. The reactor arrangement is comprised of an auxiliary reactor having a transformation device and a main reactor. The invention also provides an auxiliary reactor adapted for being connected to a main reactor, a method of using such a reactor arrangement, as well as a process involving the reactor arrangement.

A process for upgrading vacuum residuum and vacuum gas oil hydrocarbons is disclosed. The process may include: contacting a heavy distillate hydrocarbon fraction and hydrogen with a zeolite selective hydrocracking catalyst in a first ebullated bed hydrocracking reaction zone to convert at least a portion of the vacuum gas oil to lighter hydrocarbons. Contacting a residuum hydrocarbon fraction and hydrogen with a non-zeolite base metal hydroconversion catalyst in a second ebullated bed hydroconversion reaction zone may produce a vapor stream containing unconverted hydrogen, acid gases and volatilized hydrocarbons which may be fed along with the vacuum gas oil in the first ebullated bed hydrocracking zone.

Method of producing hydrogen sulfide in an alkaline environment. A mixture having a sodium salt, elemental sulfur (S) and water is added to a reactor for the purpose of generating hydrogen sulfide (H.sub.2S) gas as the main product and sodium sulfate (Na.sub.2SO.sub.4) as a byproduct.

A mixing tee assembly suitable for phosphate acid attack reaction is described. The mixing tee assembly comprises an outer pipe having a mixing end and a tee end, wherein a tee structure is formed near the tee end to connect with additional piping; an inner pipe comprising a nozzle end connected to a nozzle and a open end; wherein the inner pipe is lined with a corrosion-resistant material on its inside surface; wherein when the inner pipe is assembled within the outer pipe, the nozzle extends beyond the mixing end of the outer pipe by at least of the inside diameter of the outer pipe.