Abstract:
The present invention relates to a catalytic wall-flow monolith for use in an emission treatment system, the monolith comprising a porous substrate and having a first face and a second face defining a longitudinal direction therebetween and first and second pluralities of channels extending in the longitudinal direction, the first plurality of channels provides a first plurality of inner surfaces and is open at the first face and closed at the second face, and the second plurality of channels is open at the second face and closed at the first face, a first catalytic material is distributed within the porous substrate, a microporous membrane is provided in the first plurality of channels on a first portion, extending in the longitudinal direction, of the first plurality of inner surfaces, and the first portion extends from the first face for 75 to 95% of a length of the first plurality of channels.
Abstract:
Disclosed herein is a catalyst for producing biodiesel, including a carrier having water resistance and an active component supported on the carrier and used in a hydrotreating reaction or a decarboxylation reaction. Since the catalyst for producing biodiesel includes a carrier having strong water resistance, the deactivation of the catalyst due to the water produced through a process of producing HBD can be prevented, thus remarkably improving the long term stability of a catalyst.
Abstract:
An Oxygen Ion Conductor (OIC)/Oxygen Storage (OS) material is disclosed, more particularly an OIC/OS having a stable cubic crystal structure, related to a method for the promotion of the catalytic properties of OIC/OS by the post-synthetic introduction of non-precious metals via a basic (alkaline) exchange process and the application of said materials to control of vehicle exhaust emissions.
Abstract:
The invention relates to a method for preparing polyglycerol, comprising —providing a catalyst salt on a support, the catalyst salt having catalytic activity with respect to an etherification reaction of a polyol selected from the group of glycerol and oligoglycerols, —contacting the catalyst salt on the support with a fluid phase comprising a polyol selected from the group of glycerol and oligoglycerols, —and subjecting the polyol in the fluid phase to an etherification reaction in the presence of the catalyst salt, thereby forming the polyglycerol.
Abstract:
Disclosed is a method for converting an alkyl halide to an olefin. The method can include contacting a zeolite catalyst having a chemical formula of My/nH(x-y)AlxSi(96-x)O192, where M is a metal cation having a valence of n under reaction conditions sufficient to produce an olefin hydrocarbon product comprising C2 to C4 olefins. M can include cations of metals from Groups IA, IIA, IIIA. IVB, VB, VIB VIIB, IB, IIB, IIIA or IVA, or any combination of metal cations thereof and y is 0.4≦y≦5.0.
Abstract:
The present invention is directed at an improved process for generating heavier hydrocarbons from carbon dioxide and/or carbon monoxide and water using tandem photochemical-thermochemical catalysis in a single reactor. Catalysts of the present disclosure can comprise photoactive material and deposits of conductive material interspersed on the surface thereof. The conductive material can comprise Fischer-Tropsch type catalysts.
Abstract:
Methods, catalysts, and reactor systems for producing in high yield aromatic chemicals and liquid fuels from a mixture of oxygenates comprising di- and polyoxygenates are disclosed. Also disclosed are methods, catalysts, and reactor systems for producing aromatic chemicals and liquid fuels from oxygenated hydrocarbons such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like; and methods, catalysts, and reactor systems for producing the mixture of oxygenates from oxygenated hydrocarbons such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like. The disclosed catalysts for preparing the mixture of oxygenates comprise a NinSnm alloy and a crystalline alumina support.
Abstract:
A solid catalyst comprising an effective amount of iridium and at least one second metal selected from gallium, zinc, indium and germanium associated with a solid support material is useful for vapor phase carbonylation to produce carboxylic acids and esters from alkyl alcohols, esters, ethers or ester-alcohol mixtures. The iridium and at least one second metal are deposited on a support material. In some embodiments of the invention, the catalyst is useful for vapor phase carbonylation.
Abstract:
A photocatalyst partial oxidation of methanol reforming process can be rapidly started via the use of a photocatalytic reaction at a reaction temperature below 150° C., and hydrogen having a low carbon monoxide content is produced at a high methanol conversion rate.