To provide a catalyst for purifying a combustion exhaust gas and a method for purifying a combustion exhaust gas. The denitration catalyst used in a method for purifying a combustion exhaust gas of removing a nitrogen oxide in the exhaust gas by making the catalyst into contact with the combustion exhaust gas having an alcohol as a reducing agent added thereto, contains zeolite as a support having supported thereon a catalyst metal, in a powder X-ray diffraction (XRD) measurement of the denitration catalyst a ratio (relative peak intensity ratio) r=I/J of a height I of a diffraction peak at a diffraction angle (2) of from 7.8 to 10.0 and a height J of a diffraction peak at a diffraction angle (2) of from 28.0 to 31.0 being in a range of from 3.0 to 5.0.

To provide a catalyst for purifying a combustion exhaust gas and a method for purifying a combustion exhaust gas. The denitration catalyst used in a method for purifying a combustion exhaust gas of removing a nitrogen oxide in the exhaust gas by making the catalyst into contact with the combustion exhaust gas having an alcohol as a reducing agent added thereto, contains zeolite as a support having supported thereon a catalyst metal, in a powder X-ray diffraction (XRD) measurement of the denitration catalyst a ratio (relative peak intensity ratio) r=I/J of a height I of a diffraction peak at a diffraction angle (2) of from 7.8 to 10.0 and a height J of a diffraction peak at a diffraction angle (2) of from 28.0 to 31.0 being in a range of from 3.0 to 5.0.

A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100 C. and up to 550 C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.

An organo-template free method for the manufacture of a ferrierite (FER) zeolite and the ferrierite producible by the method. The method comprises (i) forming a reaction gel comprising an aluminium source, sodium and/or potassium hydroxide, and silica sol; and (ii) heating the reaction gel to a temperature and for a duration suitable for the growth of the FER zeolite. The reaction gel does not comprise seed crystals. Moreover the reaction gel does not comprise an organic structure directing agent (OSDA). The ferrierite (FER) zeolite has the following features: a) a SAR of between 11 and 20; b) a BET surface area of between 320 and 380 m.sup.2/g; and c) a micropore volume of between 0.1 and 0.2 cm.sup.3/g.

A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100 C. and up to 550 C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.

In one aspect, the disclosure relates to a method for depolymerizing plastics using radio frequency (RF) induction heating. The method can be conducted at low temperatures and does not require the addition of H.sub.2 or solvents. In one aspect, the method is tunable to produce commercially valuable C.sub.2-C.sub.20 compounds including, but not limited to, alkenes, cycloalkanes, cycloalkenes, hydrocarbon lubricants, and polymerizable monomers. In another aspect, the method can depolymerize both virgin plastics and recycled plastic materials. In still another aspect, catalysts useful in the disclosed method are resistant to coking and poisoning.

In one aspect, the disclosure relates to a method for depolymerizing plastics using radio frequency (RF) induction heating. The method can be conducted at low temperatures and does not require the addition of H.sub.2 or solvents. In one aspect, the method is tunable to produce commercially valuable C.sub.2-C.sub.20 compounds including, but not limited to, alkenes, cycloalkanes, cycloalkenes, hydrocarbon lubricants, and polymerizable monomers. In another aspect, the method can depolymerize both virgin plastics and recycled plastic materials. In still another aspect, catalysts useful in the disclosed method are resistant to coking and poisoning.

An emission treatment system for NOx abatement in an exhaust stream of an ammonia-fueled engine, the emission treatment system including a selective catalytic reduction (SCR) catalyst disposed on a substrate in fluid communication with the exhaust stream, an oxidation catalyst disposed on a substrate positioned either upstream or downstream of the SCR catalyst and in fluid communication with the exhaust stream and the SCR catalyst, and optionally, one or more adsorption components disposed on a substrate positioned upstream and/or downstream of the SCR catalyst and in fluid communication with the exhaust stream and the SCR catalyst, the adsorption component chosen from low temperature NOx adsorbers (LT-NA), low temperature ammonia adsorbers (LT-AA), low temperature water vapor adsorbers (LT-WA), and combinations thereof. The disclosure further provides a related method of treatment of an exhaust gas.

The present invention relates to the field of dewaxing of hydrocarbon feeds. More in particular, it relates to the use of alkaline-treated mesoporous zeolites and catalysts encompassing the same for the dewaxing of hydrocarbon feeds. It was found that the zeolites and catalysts of the present invention can significantly reduce cracking of the hydrocarbon feed, and accordingly significantly reduce liquid hydrocarbon feed loss during processes such as dewaxing.

There is provided a catalyst for the conversion of syngas to light paraffins. The catalyst includes a first catalytic component comprising carbon and/or at least one oxide of at least one element selected from the group consisting of copper, zinc, and aluminum, and a second catalytic component comprising at least one zeolite selected from the group consisting of ferrierite, mordenite, theta-1, ZSM-5, H-beta, H-Y and ZSM 23. The first catalytic component and the second catalytic component are present in a weight ratio of from 90:10 to 50:50 respectively.