Abstract:
A method of use for a high shear device incorporated into a process or system for the production of acetaldehyde from ethylene as a reactor device is shown to be capable of decreasing mass transfer limitations, by forming a feed stream emulsion, and thereby enhancing the acetaldehyde production process in the system.
Abstract:
A method for hydrocracking a feedstream comprising liquid hydrocarbon by forming a dispersion comprising hydrogen-containing gas bubbles dispersed in the liquid hydrocarbon, wherein the bubbles have a mean diameter of less than about 5 μm, and introducing the dispersion into a hydrocracker comprising hydrocracking catalyst. A method for hydrocracking by subjecting a fluid mixture comprising hydrogen-containing gas and liquid hydrocarbons to a shear rate greater than 20,000 s−1 to produce a dispersion of hydrogen in a continuous phase of the liquid hydrocarbons, and introducing the dispersion into a fixed bed hydrocracking reactor from which a hydrocracked product is removed. A system for hydrocracking a hydrocarbonaceous feedstream including at least one high shear device capable of producing a tip speed of the at least one rotor of greater than 5.0 m/s, and a hydrocracker containing hydrocracking catalyst and comprising an inlet fluidly connected to an outlet of the high shear device.
Abstract:
Herein disclosed is a method of producing synthesis gas from carbonaceous material, the method comprising: (a) providing a mixture comprising carbonaceous material and a liquid medium; (b) subjecting the mixture to high shear under gasification conditions whereby a high shear-treated stream comprising synthesis gas is produced; and (c) separating a product comprising synthesis gas from the high shear-treated stream. Herein also disclosed is a method for producing a liquid product. The method comprises forming a dispersion comprising gas bubbles dispersed in a liquid phase in a high shear device, wherein the average gas bubble diameter is less than about 1.5 μm; contacting the dispersion with a multifunctional catalyst to form the liquid product; and recovering the liquid product. In an embodiment, the liquid product is selected from the group consisting of C2+ hydrocarbons, C2+ oxygenates, and combinations thereof.
Abstract:
A catalyst composition and process facilitates the oxidative reforming of low molecular weight hydrocarbons, such as methane, to other hydrocarbons having 2 or more carbon atoms (“C2+ compounds”). Compositions having a formula comprising a metal, tungsten, manganese and oxygen effectively catalyze the oxidative reforming of methane with a high rate of conversion and selectivity. Controlling feed gas flow and catalyst bed temperature controls the exothermic OCM reaction, avoiding runaway reactions or coking. A single or multiple reactor system can be utilized for the oxidative reforming reactions. Using two reactors in series, catalyst embodiments produced favorable yields of C2+ compounds, in the presence or absence of a distributed oxygen feed, and with or without interstage effluent cooling. Removal of desirable end products from the reactor effluent, followed by recycling of the residual effluent, increases the conversion to, and ultimate yield of desirable end product.
Abstract:
Herein disclosed is a system for producing an organic, the system including at least one high shear mixing device having at least one rotor and at least one stator separated by a shear gap, wherein the shear gap is the minimum distance between the at least one rotor and the at least one stator; a pump configured for delivering a fluid stream comprising liquid medium and light gas to the at least one high shear mixing device, wherein the at least one high shear mixing device is configured to form a dispersion of the light gas in the liquid medium; and a reactor comprising at least one inlet and at least one outlet, wherein the at least one inlet of the reactor is fluidly connected to the at least one high shear mixing device, and wherein the at least one outlet is configured for extracting the organic therefrom.