The present disclosure is directed to a method of manufacture of co-crystallized pentasil zeolite and zeolite mordenite (hereinafter “MFI/MOR zeolites”). This is accomplished by using an improved sol-gel formulation including a water-soluble fraction of ODSO as an additional component. The resulting products are, or contain, co-crystallized MFI/MOR zeolites, whereas in the absence of the ODSO, the resulting products are analcime, typically considered a zeolite impurity.

The present disclosure is directed to a method of manufacture of co-crystallized pentasil zeolite and zeolite mordenite (hereinafter “MFI/MOR zeolites”). This is accomplished by using an improved sol-gel formulation including a water-soluble fraction of ODSO as an additional component. The resulting products are, or contain, co-crystallized MFI/MOR zeolites, whereas in the absence of the ODSO, the resulting products are analcime, typically considered a zeolite impurity.

The present disclosure is directed to a method of manufacture of low silica zeolite having MFI framework, such as ZSM-5. A sol-gel formulation includes a water-soluble fraction of ODSO as an additional component. The resulting products include low silica zeolite having MFI framework, whereas in the absence of the ODSO, the resulting products are zeolite impurities including analcime.

The present disclosure is directed to a method of manufacture of low silica zeolite having MFI framework, such as ZSM-5. A sol-gel formulation includes a water-soluble fraction of ODSO as an additional component. The resulting products include low silica zeolite having MFI framework, whereas in the absence of the ODSO, the resulting products are zeolite impurities including analcime.

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.

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.

A phosphorus- and metal-containing core-shell molecular sieve has a core composed of a ZSM-5 molecular sieve, and a shell composed of a β molecular sieve. The phosphorus- and metal-containing core-shell molecular sieve has a phosphorus content, calculated as P.sub.2O.sub.5, of 1-10 wt %, and a metal content, calculated as metal oxide, of 0.1-10 wt %, based on the dry weight of the phosphorus- and metal-containing core-shell molecular sieve. It shows an .sup.27Al MAS NMR with a ratio of the area of a resonance signal peak at a chemical shift of 39±3 ppm to the area of a resonance signal peak at a chemical shift of 54±3 ppm of 0.01-∞:1.

The present invention addresses to a process for the production of aromatic compounds from streams containing linear chains with 5 to 18 carbon atoms, of fossil or renewable origin, and application in the field of catalytic cracking aiming at a regenerator operation at much lower temperature, between 480° C. and 620° C., preferably the temperature should be between 500° C. and 600° C. The coked catalyst generated by the cracking of light streams with low potential for delta coke generation can have the combustion effected at a lower temperature. The regeneration temperature must be at least 40° C. and at most 100° C. higher than the reaction temperature, keeping the catalyst circulation high to maintain the energy balance in the reaction section. The minimum regeneration temperature can be ensured by installing an air preheating furnace before entering the regenerator and passing through the air distributor inside the regenerator. The used catalyst must contain zeolite with pores of intermediate size. Such conditions greatly favor the production of aromatics and the octane rating of the produced naphtha.

The present invention addresses to a process for the production of aromatic compounds from streams containing linear chains with 5 to 18 carbon atoms, of fossil or renewable origin, and application in the field of catalytic cracking aiming at a regenerator operation at much lower temperature, between 480° C. and 620° C., preferably the temperature should be between 500° C. and 600° C. The coked catalyst generated by the cracking of light streams with low potential for delta coke generation can have the combustion effected at a lower temperature. The regeneration temperature must be at least 40° C. and at most 100° C. higher than the reaction temperature, keeping the catalyst circulation high to maintain the energy balance in the reaction section. The minimum regeneration temperature can be ensured by installing an air preheating furnace before entering the regenerator and passing through the air distributor inside the regenerator. The used catalyst must contain zeolite with pores of intermediate size. Such conditions greatly favor the production of aromatics and the octane rating of the produced naphtha.

The present invention relates to a process for the production of 2,2,4,6,6-pentamethyl-1,2,5,6-tetrahydro-pyrimidine comprising (i) providing a reactor containing a catalyst comprising a zeolitic material, wherein the zeolitic material comprises YO.sub.2 and optionally comprises X.sub.2O.sub.3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element; (ii) preparing a reaction mixture comprising acetone and ammonia; (iii) contacting the catalyst in the reactor with the reaction mixture prepared in (ii) for obtaining a reaction product comprising 2,2,4,6,6-pentamethyl-1,2,5,6-tetrahydro-pyrimidine; wherein the temperature programmed desorption of ammonia (NH.sub.3-TPD) profile of the zeolitic material comprised in the catalyst provided in (i) optionally displays one or more bands associated with medium acid sites, said one or more bands having maxima in the temperature range of from 250 to 500° C., wherein the integration of said one or more bands affords a total value of 0.5 mmol/g or less, and wherein the mixture prepared in (ii) and contacted with the catalyst in (iii) contains less than 10 wt.-% of water based on 100 wt.-% of the reaction mixture.