Abstract: A system and/or process for decreasing the level of at least one organic fluoride present in a hydrocarbon mixture by first passing the hydrocarbon mixture to an eductor and educting into the hydrocarbon mixture a catalyst comprising a volatility reducing additive and hydrofluoric acid to produce a hydrocarbon-catalyst mixture, permitting the hydrocarbon-catalyst mixture to undergo a phase separation to produce a hydrocarbon phase having a lower concentration of at least one organic fluoride than the hydrocarbon mixture and to produce a catalyst phase, and withdrawing at least a portion of the hydrocarbon phase to thereby form a hydrocarbon product stream, are disclosed. In an alternate embodiment, a system and/or process for controlling the concentration of at least one organic fluoride and/or the RON of the hydrocarbon mixture by adjusting the amount of volatility reducing additive present in the catalyst are disclosed.
Type:
Grant
Filed:
January 27, 1999
Date of Patent:
September 5, 2000
Assignee:
Phillips Petroleum Company
Inventors:
Bruce B. Randolph, Kenneth Charles Hoover
Abstract: A catalyst system comprising a first solid material comprising activated carbon and at least one carburized transition metal; and a second solid material comprising at least one halogen component and alumina, and a method of preparing such catalyst system which comprises mixing a first solid material comprising activated carbon and at least one carburized transition metal and a second solid material comprising at least one halogen component and alumina are disclosed. The thus-obtained catalyst system is employed as a catalyst in the isomerization of a hydrocarbon feedstock comprising saturated hydrocarbons.
Abstract: A system and process for purifying a 1,3-butadiene feedstock containing 1,3-butadiene and various impurities by first introducing the 1,3-butadiene feedstock stream to a separation column to produce an intermediate product stream containing 1,3-butadiene and residual impurities and then introducing the produced intermediate product stream through a condenser to a suitable dryer for removing residual impurities from the intermediate product stream and thereby forming a purified 1,3-butadiene stream. The separation column separates an overhead stream, containing 1,3-butadiene and impurities such as propadiene, water and oxygen, and a bottoms stream, containing impurities such as polymerization inhibitor, ethyl acetylene, 1,3-butadiene dimer, pentane and 1,2-butadiene, from the intermediate product stream which leaves the separation column in the form of a vapor side draw stream.
Type:
Grant
Filed:
August 31, 1998
Date of Patent:
July 25, 2000
Assignee:
Phillips Petroleum Company
Inventors:
Daniel T. Fernald, Stephen L. Ege, Si M. Nguyen, Richard Peacock, Larry L. Nash, George A. Moczygemba
Abstract: A catalyst system comprising alumina, at least one carburized transition metal, and at least one halogen component, and a method of preparing such catalyst system which comprises incorporating at least one transition metal compound into alumina thereby forming a transition metal-alumina compound; carburizing the transition metal-alumina compound thereby forming a carburized transition metal-alumina compound; and incorporating at least one halogen component into the carburized transition metal-alumina compound, are disclosed. The thus-obtained catalyst system is employed as a catalyst in the isomerization of a hydrocarbon feedstock comprising saturated hydrocarbons.
Abstract: A process for desulfurizing and enhancing the octane of cracked gasoline by first aromatizing the cracked gasoline and, second, hydrodesulfurizing the resulting intermediate product stream.
Abstract: A composition is prepared by a method which comprises mixing a first solid material comprising a platinum group metal, a rhenium component, a porous carrier material and, optionally, a halogen component and a second solid material comprising silica and bismuth. The thus-obtained composition is employed as a catalyst in the conversion of hydrocarbons to aromatics.In an alternate embodiment, hydrocarbons are converted to aromatics by sequentially contacting the hydrocarbons with the first solid material and then the second solid material.
Abstract: A process for activating a hydrogenation catalyst in the presence of an activation agent containing a piperidine compound is disclosed. The thus-activated hydrogenation catalyst is employed as a hydrogenation catalyst in the hydrogenation of a pyridine compound to a piperidine compound.
Abstract: A catalyst system comprising a nitrided silicoaluminophosphate, and a method of preparing such catalyst system which comprises nitriding a silicoaluminophosphate, are disclosed. The thus-obtained catalyst system is employed as a catalyst in the conversion of a hydrocarbon feedstock comprising oxygenated hydrocarbons to olefins.
Type:
Grant
Filed:
March 4, 1999
Date of Patent:
April 18, 2000
Assignee:
Phillips Petroleum Company
Inventors:
An-hsiang Wu, Ralph J. Melton, Charles A. Drake
Abstract: A novel high stability catalyst composition comprising a mixture of zeolite and zinc spinel that has been treated with a reducing gas under high temperature conditions, a method of making such high stability catalyst, and the use thereof for converting paraffin hydrocarbons to olefins and aromatics.
Type:
Grant
Filed:
November 9, 1998
Date of Patent:
April 11, 2000
Assignee:
Philips Petroleum Company
Inventors:
Jianhua Yao, James B. Kimble, Charles A. Drake
Abstract: A catalyst system comprising a silylated silicoaluminophosphate composition, and methods of preparing such catalyst system, are disclosed. The thus-obtained catalyst system is employed as a catalyst in the conversion of a hydrocarbon feedstock comprising oxygenated hydrocarbons to olefins.
Type:
Grant
Filed:
May 5, 1999
Date of Patent:
April 4, 2000
Assignee:
Phillips Petroleum Company
Inventors:
An-hsiang Wu, Ralph Melton, Charles A. Drake
Abstract: The rate of coke formation during the aromatization of gasoline boiling range hydrocarbons in which the hydrocarbons are contacted with a zeolite catalyst is significantly reduced by providing a concentration of a silyating agent in the hydrocarbon feed.