The present invention relates to a process for the manufacture of a copper containing small-pore zeolite which comprisespreparing a reaction mixture comprising a zeolite of the faujasite framework type, Cu-tetraethylenepentamine (Cu-TEPA) and at least one compound M(OH)x, which does not comprise the tetraethylammonium cation andheating the reaction mixture to form a copper containing small-pore zeolite.

One form of the present disclosure provides a catalyst including: an LTA zeolite containing copper ions; and an additive, wherein a Si/Al molar ratio of the LTA zeolite is in a range of approximately 2 to 50.

An alkylation catalyst having a zeolite catalyst component and a binder component providing mechanical support for the zeolite catalyst component is disclosed. The binder component is an ion-modified binder that can include metal ions selected from the group consisting of Co, Mn, Ti, Zr, V, Nb, K, Cs, Ga, B, P, Rb, Ag, Na, Cu, Mg, Fe, Mo, Ce, and combinations thereof. The metal ions reduce the number of acid sites on the zeolite catalyst component. The metal ions can range from 0.1 to 50 wt % based on the total weight of the ion-modified binder. Optionally, the ion-modified binder is present in amounts ranging from 1 to 80 wt % based on the total weight of the catalyst.

Method for the preparation of a metal-exchanged zeolites or mixtures of metal-exchanged zeolites, such as Cu-SSZ-13, Cu-ZSM-5, Cu-beta, or Fe-beta, comprising the steps of providing a dry mixture of a) one or more microporous zeotype materials that exhibit ion exchange capacity and b) one or more metal compounds; heating the mixture in a gaseous atmosphere containing ammonia to a temperature lower than 300? C. for a time sufficient to initiate and perform a solid state ion exchange of ions of the metal compound and ions of the zeolite material; and obtaining the metal-exchanged zeolite material.

The invention relates to a catalyst system for oligomerizing olefins over a catalyst comprising nickel, to the use of this catalyst and to a method for dimerizing olefins.

An alkylation catalyst having a zeolite catalyst component and a binder component providing mechanical support for the zeolite catalyst component is disclosed. The binder component is an ion-modified binder that can include metal ions selected from the group consisting of Co, Mn, Ti, Zr, V, Nb, K, Cs, Ga, B, P, Rb, Ag, Na, Cu, Mg, Fe, Mo, Ce, and combinations thereof. The metal ions reduce the number of acid sites on the zeolite catalyst component. The metal ions can range from 0.1 to 50 wt % based on the total weight of the ion-modified binder. Optionally, the ion-modified binder is present in amounts ranging from 1 to 80 wt % based on the total weight of the catalyst.

Provided is a method for producing an exhaust gas purifying filter that enables a catalyst to be supported on an exhaust gas purifying filter in a simple manner without the need for impregnation with or application of a solution containing catalyst particles after the production of the exhaust gas purifying filter and also enables an exhaust gas purifying filter having a high NOx reduction efficiency to be obtained. The method includes the steps of: extruding a mixture containing zeolite and raw material particles of a support to prepare a green body; firing the green body to prepare a sintered body; treating the sintered foody with alkali under a condition at pH 9.5 or more; and exchanging an element at an ion-exchange site of the zeolite contained in the alkali-treated sintered body with a transition metal.

A device for purifying exhaust gas provided to purify exhaust gas in an engine includes an exhaust line through which exhaust gas discharged from the engine passes, a warm-up catalytic converter (WCC) that is disposed in the exhaust line, and a catalyst device disposed in rear of the warm-up catalytic converter for reducing a nitrogen oxide of the exhaust gas passing through the warm-up catalytic converter, wherein the catalyst unit includes an LTA zeolite catalyst.

A device for purifying exhaust gas may be provided to purify exhaust gas in an engine includes an exhaust line through which exhaust gas discharged from the engine passes, a diesel oxidation catalyst (DOC) that is disposed in the exhaust line to purify hydrocarbon (HC) and carbon monoxide (CO) of the exhaust gas, a urea injector that injects a urea aqueous solution into the exhaust line, and a selective catalyst reduction (SCR) that reduces nitrogen oxide of the exhaust gas passing through the DOC by use of the urea aqueous solution, in which the DOC includes an LTA zeolite catalyst.

Provided herein is an exhaust system comprising a diesel particulate filter coated with a selective catalytic reduction (SDPF) wherein the SCR is coated with a Cu/LTA catalyst comprising a LTA zeolite that includes copper ions and the SCR is coated on a high pore diesel particulate matter filter, wherein a ratio of copper and aluminum is from about 0.14 to about 0.48, and wherein the Si/Al ratio of the LTA zeolite is from about 8 to about 100.