摘要:
A process for the conversion of linear olefins to the iso-olefins corresponding thereto and having the same carbon number which comprises contacting the linear olefins with a catalyst comprising ZSM-35 and additionally containing alkaline earth metal cations.
摘要:
A process for integration of an autothermal reforming unit and a cogeneration power plant in which the reforming unit has two communicating fluid beds. The first fluid bed is a reformer reactor containing inorganic metal oxide and which is used to react oxygen and light hydrocarbons at conditions sufficient to produce a mixture of synthesis gas, hydrogen, carbon monoxide, and carbon dioxide. The second fluid bed is a combustor-regenerator which receives spent inorganic metal oxide from the first fluid bed and which provides heat to heat the inorganic metal and balance the reaction endotherm, by combusting fuel gas in direct contact with the inorganic metal oxide producing hot flue gas. In preferred embodiments, steam is also fed to the reformer reactor and a catalyst may be used with the inorganic metal oxide. The cogeneration power plant has a gas turbine equipped with an air compressor and a combustor and in the integration a portion of compressed air is drawn off from the power plant gas turbine air compressor leaving remainder compressed air; the drawn off compressed air is introduced to the combustor-regenerator; the hot flue gas from the combustor-regenerator is mixed with the remainder of the compressed air to produce a recombined gas stream and this recombined gas stream is fed to the combustor of the cogeneration gas turbine power plant.
摘要:
A process for reducing the Mutagenicity Index and/or the PCA content of a lubricating oil extract by re-extracting a lubricating oil extract with a second extraction solvent, different from the first extraction solvent, to form a secondary raffinate and a secondary extract mix; separating the secondary raffinate from the secondary extract mix; and separating the secondary raffinate and the secondary extract from said second extraction solvent.
摘要:
A process for the conversion of linear olefins to the iso-olefins corresponding thereto and having the same carbon number which comprises contacting the linear olefins with a catalyst comprising ZSM-35 and additionally containing alkaline earth metal cations.
摘要:
Long chain alkyl substituted naphthalenes are produced by the alkylation of naphthalene with an olefin or other alkylating agent possessing at least 6 carbon atoms, usually 12 to 20 carbon atoms, in the presence of an alkylation catalyst comprising a zeolite which contains cations having a radius of at least 2.5 Å. Cations of this size may be provided by hydrated cations such as hydrated ammonium, sodium or potassium cations or by organoammonium cations such as tetraalkylammonium cations. The presence of the bulky cations in the zeolite increases the selectivity of the catalyst for the production of long chain mono-alkyl substituted naphthalenes in preference to more highly substituted products. The zeolite may be treated to reduce its acid activity.
摘要:
A process for dehydrogenation and/or dehydrocyclization of a feedstock containing at least one C2-C12 aliphatic hydrocarbon comprising contacting the feedstock with a conversion catalyst comprising a zeolite which, in its calcined form, has an X-ray diffraction pattern including the lines of Table I.
摘要:
Des naphtalènes à substitution d'alkyle à chaîne longue sont produits par alkylation de naphtalène avec une oléfine ou un autre agent alkylant ayant au moins 6 atomes de carbone, en général 12 à 20 atomes de carbone, en présence d'un catalyseur d'alkylation comprenant une zéolite qui contient des cations d'un rayon moyen d'au moins 2,5 Å. Des cations de cette dimension peuvent être fournis par des cations hydratés tels que les cations d'ammonium, de sodium ou de potassium hydratés ou par des cations d'organoammonium, tels que les cations de tétraakylammonium. La présence des gros cations dans la zéolite accroît la sélectivité du catalyseur pour la production de naphtalènes à substitution de mono-alkyle à chaîne longue de préférence à des produits de substitution plus élévée. On peut traiter la zéolite pour réduire son activité acide.
摘要:
There is provided a process for increasing the Cetane Index of a distillate fraction by reacting the fraction with hydrogen over a catalyst comprising a hydrogenation component, such as platinum, and steamed zeolite Beta. The process results in the selective ring opening of cyclic compounds, such as aromatics, with a minimum of cracking of paraffinic hydrocarbons.
摘要:
A process for integration of an autothermal reforming unit and a cogeneration power plant in which the reforming unit has two communicating fluid beds. The first fluid bed is a reformer reactor containing inorganic metal oxide and supplemental oxidant gas and which is used to oxidize light hydrocarbons, primarily by oxidant supplied from the inorganic metal oxide and secondarily supplied by supplemental oxidant gas, at conditions sufficient to produce a mixture of synthesis gas, hydrogen, carbon monoxide, and carbon dioxide. The second fluid bed is a combustor-regenerator which receives reduced inorganic metal oxide from the first fluid bed and which provides heat to heat the inorganic metal by combusting fuel gas in direct contact with the inorganic metal oxide producing hot flue gas. In preferred embodiments, steam is also fed to the reformer reactor and a catalyst may be used with the inorganic metal oxide and supplemental oxidant gas. The supplemental oxidant gas can be oxygen, enriched air or air. The cogeneration power plant has a gas turbine equipped with an air compressor and a combustor and in the integration a portion of compressed air is drawn off from the power plant gas turbine air compressor leaving remainder compressed air; the drawn off compressed air is introduced to the combustor-regenerator; the hot flue gas from the combustor-regenerator is mixed with the remainder of the compressed air to produce a recombined gas stream and this recombined gas stream is fed to the combustor of the cogeneration gas turbine power plant.