Patent classifications
B01J29/7007
Accelerated aluminosilicate zeolite crystallization
A method for crystallizing aluminosilicate zeolites, including the steps of preparing a mixture containing a silica source, a mineralizing agent, an organic structure directing agent; heating the mixture to form a heated mixture; and adding an alumina source to the heated mixture. The method steps described herein can provide an accelerated aluminosilicate zeolite crystallization process as compared to conventional processes.
Method of producing a cracking catalyst
Embodiments of the present disclosure are directed to a method of producing a cracking catalyst. The method of producing a cracking catalyst may comprise producing a plurality of uncalcined zeolite-beta nanoparticles via a dry-gel method, directly mixing the plurality of uncalcined zeolite-beta nanoparticles with at least one additional hydrocracking component to form a mixture, and calcining the mixture to form the cracking catalyst. The plurality of uncalcined zeolite-beta nanoparticles may have an average diameter of less than 100 nm.
HYDROCRACKING CATALYSTS AND USES THEREOF
The present disclosure provides a catalyst represented by Formula (I)
##STR00001##
wherein the moiety X[(RO.sub.a)(QO.sub.b)] and the moiety Z are mechanically mixed; wherein the weight percentage of the moiety Z is about 1% to about 99% of the total weight of the catalyst. Furthermore, the present disclosure provides a tunable, low-temperature, energy-efficient process for hydrocracking plastics to form a fuel, a lubricant, or a mixture thereof.
METHODS OF PRODUCING NANO-SIZED, MESOPOROUS ZEOLITES
According to embodiments disclosed herein, a method of forming nano-sized, mesoporous zeolite particles may include contacting initial nano-sized zeolite particles with a first mixture to form nano-sized, mesoporous zeolite particles from the initial nano-sized zeolite particles. The initial nano-sized zeolite particles may have a particle size of less than or equal to 100 nm and may have an average pore size of less than 2 nm. The first mixture may include NaOH; NH.sub.4NO.sub.3, NH.sub.4OH, or both; and a surfactant. The NaOH and the surfactant may interact with the initial nano-sized zeolite particles to remove one or more silica components of the initial nano-sized zeolite particles to form mesopores. The NH.sub.4NO.sub.3, NH.sub.4OH, or both may interact with the initial nano-sized zeolite particles to exchange at least one positively-charged ion from the NH.sub.4NO.sub.3, NH.sub.4OH, or both with at least one positively-charged ion from the initial nano-sized zeolite particles.
METHOD FOR MAKING FUNCTIONAL STRUCTURAL 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.
YTTRIUM-DOPED CATALYST SUPPORT
Disclosed herein are oxidation catalyst compositions comprising a first platinum group metal (PGM) component, a manganese (Mn) component, a first refractory metal oxide support material, and a metal component comprising yttrium, lanthanum, tin, magnesium, cerium, titanium, or a combination of any of the foregoing, wherein each of the first PGM component, the Mn component, and the metal component are supported on the first refractory metal oxide support material; catalyst articles coated with at least one such catalyst composition; and emission treatment systems including at least one such catalyst article.
CORE-SHELL MOLECULAR SIEVE CONTAINING PHOSPHORUS AND METAL, SYNTHESIS THEREOF, AND APPLICATION THEREOF
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.
Passive nitrogen oxide adsorber having oxidation-catalytically active function
The present invention relates to the use of a material B containing palladium and platinum in a weight ratio of 2:3 to 10:1 for increasing the low-temperature storage of nitrogen oxides by means of a material A containing palladium and zeolite, wherein material A and material B are present on a carrier substrate of the length L, and wherein material A and material B are different from one another.
Process for the preparation of platform chemicals from sugar using acid catalyst
A process is provided for the preparation of value added chemicals such as ethyl levulinate from a glucose or other sugars, catalyzed by a mixture of a Lewis acid catalyst and a Bronsted acid catalyst.
TRANSALKYLATION OF ALKYLATED PHENOLS
Transalkylation processes using catalysts comprising three dimensional 12 membered ring zeolites with a combination of small and large pores are described. These catalysts have increased conversion of alkylphenols to phenol, cresols, and alkylbenzenes from coal-derived liquid streams compared to catalysts consisting of HZSM-5 zeolite.