Patent
Conversion of methanol and dimethyl ether
TLDR
In this article, a catalyst consisting of a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index of about 1 to 12, and containing phosphorus incorporated with the crystal structure thereof in an amount of approximately 0.78 percent by weight.Abstract:
Methanol and dimethyl ether are converted to a reaction product containing olefins. The conversion is carried out employing a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index of about 1 to 12, and containing phosphorus incorporated with the crystal structure thereof in an amount of at least about 0.78 percent by weight.read more
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Crystalline aluminosilicate PSH-3 and its process of preparation
TL;DR: In this paper, a new zeolite material having a composition corresponding to the formula: Msub2/n OAlsub2 Osub3(20-150) SiOsub2 (M represents n-valent cation) was introduced.
Patent
Production of light olefins
TL;DR: The process for the production of light olefins from a feedstock comprising methanol, ethanol, dimethyl ether, diethyl ether or mixtures thereof is described in this article.
Patent
Hydrocarbon conversion catalyst composition and processes therefor and therewith
An-hsiang Wu,Charles A. Drake +1 more
TL;DR: In this article, a process for using a catalyst composition in a hydrocarbon conversion process is described, where the process comprises contacting a fluid which comprises at least one saturated hydrocarbon with the catalyst composition under a condition sufficient to effect the conversion of the hydrocarbon to an olefin.
Patent
Process for the conversion of methanol to light olefins and catalyst used for such process
TL;DR: In this article, a zeolite catalyst from ZSM-5 modified with phosphorus, rare earth elements and pore structure regulator is used for methanol/dimethyl ether conversion to light olefins.
Patent
Process for manufacturing olefins
TL;DR: In this article, a lower alcohol and/or ether feed is selectively converted to a mixture of light olefins, including ethylene and propylene, by catalytic contact of the feed, for example methanol or dimethyl ether, with certain crystalline aluminosilicate zeolite catalysts exemplified by HZSM-5.
References
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Patent
Hydrocarbon conversion process employing a crystalline aluminosilicate and method of preparing the same
TL;DR: A SILICA/ALUMINA MOL RATIO HIGHER than ZEOLITE A, PREPARED FROM a MIXED SODIUM TETRAMETHYLAMETHylamium system CONTAINING PHOSPHATE as discussed by the authors.
Patent
Phosphate-silica-aluminosilicate compositions of improved crushing strength and methods of preparing the same
TL;DR: In this paper, a mixture of reactive silica sols with the siliceous particles in an aqueous medium under conditions of temperature and contact time sufficient to at least partially bond the sol and silicate, contacting the resultant combination with ammonium phosphate and/or the acid phosphates of either ammonium or one or more polyvalent metals having atomic radii less than about one angstrom, drying the resultant composite.