The present invention relates to an isomerisation catalyst, in particular a zeolite catalyst. There is provided a method for making a particularly preferred zeolite catalyst by means of modifying catalytic zeolite materials. There is also provided a 5 process for isomerising fatty acids or alkyl esters thereof to produce branched fatty acids employing such an isomerisation catalyst, a composition comprising branched fatty acids, and also use of the isomerisation catalyst.

A catalyst structure that allows prevention of aggregation of fine particles of a functional material, suppresses decrease of catalyst activity, and thus enables the extension of the lifetime of the catalyst structure. A catalyst structure is provided with: a support that is formed from a zeolite-type compound and has a porous structure; and at least one functional material present in the support. The functional material includes a first element that is at least one metallic element selected from the group consisting of cobalt, nickel, and iron. The support has paths connected to each other. The functional material including the first element is present in at least the paths of the support.

The invention concerns a catalyst comprising at least one zeolite with structure type MTW, a matrix, at least one metal from group VIII of the periodic classification of the elements, said catalyst having a mesopore volume increased by at least 10% compared with its initial mesopore volume, which is generally in the range 0.55 to 0.75 mL/g, at the end of a treatment with steam at a partial pressure in the range 0.01 to 0.07 MPa and at a temperature in the range 300 C. to 400 C. for at least 0.5 hour. The invention concerns the process for the preparation of said catalyst as well as an isomerization process employing said catalyst.

Process for hydrocracking and/or hydrotreatment of hydrocarbon feeds utilizing a catalyst comprising at least one hydro-dehydrogenating element of group VIB and of non-precious group VIII used alone or mixed, and a support comprising at least one porous mineral matrix and at least one dealuminated USY zeolite having an overall silicon-to-aluminium atomic ratio comprised between 2.5 and 10, a fraction by weight of extra-network aluminium atom greater than 10% relative to the total mass of the aluminium present in the zeolite, a mesopore volume measured by nitrogen porosimetry greater than 0.07 ml.g.sup.1, and a crystal parameter a.sub.0 of the elemental mesh greater than 24.28 , in which a quantity of the element nickel comprised between 0.5 and 3% by weight relative to the total mass of the zeolite is deposited on said USY zeolite and in which said catalyst is in the sulphide form.

A method for making a functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound, and at least one type of metallic nanoparticles present in the skeletal body, the skeletal body having channels connecting with each other, the metallic nanoparticles being present at least in the channels of the skeletal body.

Disclosed herein is a method of making activated EU-2 zeolite, including: pores having a diameter of 30 to 40 while maintaining the crystal structure of the EU-2 zeolite; and pores having a diameter of 40 to 200 , wherein the volume of the pores having a diameter of 30 to 40 is 0.01 to 0.06 cc/g, and the volume of the pores having a diameter of 40 to 200 is 0.07 to 0.4 cc/g.

Disclosed herein is a method of making activated EU-2 zeolite, including: pores having a diameter of 30 to 40 while maintaining the crystal structure of the EU-2 zeolite; and pores having a diameter of 40 to 200 , wherein the volume of the pores having a diameter of 30 to 40 is 0.01 to 0.06 cc/g, and the volume of the pores having a diameter of 40 to 200 is 0.07 to 0.4 cc/g.

The present invention relates to an isomerisation catalyst, in particular a zeolite catalyst. There is provided a method for making a particularly preferred zeolite catalyst by means of modifying catalytic zeolite materials. There is also provided a process for isomerising fatty acids or alkyl esters thereof to produce branched fatty acids employing such an isomerisation catalyst, a composition comprising branched fatty acids, and also use of the isomerisation catalyst.

Disclosed herein is an activated EU-2 zeolite, including: pores having a diameter of 30 to 40 while maintaining the crystal structure of the EU-2 zeolite; and pores having a diameter of 40 to 200 , wherein the volume of the pores having a diameter of 30 to 40 is 0.01 to 0.06 cc/g, and the volume of the pores having a diameter of 40 to 200 is 0.07 to 0.4 cc/g.

A method of reducing nitrogen oxides in exhaust gas of an internal combustion engine by selective catalytic reduction (SCR) comprises contacting the exhaust gas also containing ammonia and oxygen with a catalytic converter comprising a catalyst (2) comprising at least one crystalline small-pore molecular sieve catalytically active component (Z.sub.M,I) having a maximum ring opening of eight tetrahedral basic building blocks, which crystalline small-pore molecular sieve catalytically active component (Z.sub.M,I) comprising mesopores.