Patents Represented by Attorney Richard A. Morgan

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  • Microscopic examination of ebullated bed process effluent to control sediment
    Patent number: 4964974
    Abstract: In a ebullated bed process, a residual hydrocarbon oil is hydrotreated at a reaction temperature of 750.degree. F. to 875.degree. F. and pressure of 1500 psig to 10,000 psig in a single or multiple reaction zone. A sample of hydrotreated liquid effluent is flash separated to obtain a nominal 650.degree. F.+ liquid which is magnified to 100.times.. Area precent, average diameter and maximum size of insoluble agglomerates is measured from the magnified view. Reactor temperature is varied with the area percent, average diameter and maximum size of insoluble agglomerates to control downstream sediment formation and plug formation at an acceptable level.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: October 23, 1990
    Assignee: Texaco Inc.
    Inventors: Glenn A. Clausen, Karen A. Kuhn, Kathryn P. Weldon
  • Process for preparing overbased calcium sulfonates
    Patent number: 4929373
    Abstract: In the preparation of an overbased calcium sulfonate, it has been found that adding the calcium hydroxide during the carbonation reaction reduced solid waste. An initial charge of 15 to 25 wt % of the total calcium hydroxide is added to initiate the carbonation reaction. The balance is added by a process whereby calcium hydroxide concentration remains low in the reaction admixture to reduce amorphous calcium carbonate residence time. In the process, calcium hydroxide is added in amounts whereby the molar ratio of carbon dioxide to the sum of calcium hydroxide and calcium oxide is about 0.8.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: May 29, 1990
    Assignee: Texaco Inc.
    Inventors: William J. Powers, III, Leonard A. Matthews, Tze-Chi Jao
  • Temperature control in an ebullated bed reactor
    Patent number: 4913800
    Abstract: A method has been discovered for controlling catalytic reactor bed temperature in an ebullated bed process. A sour, aromatic feedstock is mixed with a conventional ebullated bed residual oil feedstock in a controlled ratio. The aromatic feedstock is catalytically cracked and thereby releases heat. The flow rate of the aromatic feedstock is controlled to maintain the reactor bed at a selected catalytic reaction temperature.Both feedstocks are upgraded to a fuel boiling range fraction and the fired heater is eliminated for the conventional feedstock and optionally for the hydrogen-containing gas feed stream as well.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: April 3, 1990
    Assignee: Texaco Inc.
    Inventors: Scott M. Sayles, William B. Livingston, MIchael P. Bellinger
  • Polyether polyamine-piperazine cured cycloaliphatic epoxy resin compositions
    Patent number: 4910269
    Abstract: The invention is an epoxy resin coating composition. The composition comprises:1. a cycloaliphatic epoxy resin (hydrogenated bisphenol A resin), and2. a triacrylate ester, reacted with a mixture of3. a polyether polyamine of the formula:NH.sub.2 CH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2 a.wherein x ranges from 2 to 6, orb. ##STR1## wherein x+y+z ranges from 4 to 6; and 4. piperazine.The weather resistant formulations cure rapidly to form blemish-free, attractive, high-gloss coatings.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: March 20, 1990
    Assignee: Texaco Chemical Co.
    Inventor: Harold G. Waddill
  • Polymer concrete composition for cementitious road repair and overlay
    Patent number: 4904711
    Abstract: A polymer concrete system has been discovered which is useful in road overlay and repair. The binder for this aggregate-filled system consists of a liquid epoxy resin and triethyleneglycol diamine or tetraethylene glycol diamine curing agent. A piperazine accelerator ensures adequate strength development after short cure times at ambient temperatures.The binder-aggregate system is relatively flexible, has excellent compression and flexural strength and adheres well to the substrate. The system is distinguished by its fast cure to a compression strength of 3000 psi which will support automotive traffic.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: February 27, 1990
    Assignee: Texaco Inc.
    Inventors: Kathy B. Sellstrom, Harold G. Waddill
  • Catalyst inventory control in an ebullated bed process
    Patent number: 4902407
    Abstract: An improved method of controlling catalyst inventory in the reactor of an ebullated bed process has been discovered. Pressure differentials are measured to calculate a catalyst inventory characterization factor. Aged catalyst is withdrawn and fresh catalyst added in an amount to reestablish the value of the factor.The catalyst to oil ratio is maintained despite changes in bed ebullation, gas and liquid holdups and oil residence time changes.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: February 20, 1990
    Assignee: Texaco Inc.
    Inventors: Ting Y. Chan, John C. Strickland
  • Stabilizing spent hydrotreating catalyst for reprocessing or storage
    Patent number: 4900713
    Abstract: A method of stabilizing pyrophoric hydrotreating catalyst drums has been discovered. The dry catalyst is introduced into drums which have been purged with an inert gas such as nitrogen or carbon dioxide. A continuous layer of gelatinized starch is applied to the top of the catalyst, sealing it from air. The drum lid is clamped on and the catalyst is stored or transported. The gelatinized starch seal does not impair the catalyst for regeneration or metals reclaiming.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: February 13, 1990
    Assignee: Texaco, Inc.
    Inventors: Fred D. Brent Jr., Richard G. Nelson, William A. Ruff
  • Method for controlling sedimentation in an ebullated bed process
    Patent number: 4898663
    Abstract: In an ebullated bed process, it has been found that in switching from one sediment yielding feedstock to a second sediment yielding feedstock that the transient sediment concentration is 5 to 8 times the steady state concentration. Such transients have caused unit shutdowns with lost production time.A method has been found which avoids these high transient sediment concentrations. Second feedstock is added incrementally (1 vol % to 2 vol % of the final rate) over the period of a week or more and sediment in the product analyzed. After full second feedstock rate is achieved, first feedstock is reduced incrementally with sediment analysis. Higher unit utilization is achieved with the corresponding increased yearly production.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: February 6, 1990
    Assignee: Texaco Inc.
    Inventors: Scott M. Sayles, William B. Livingston, Michael P. Bellinger
  • Suppressing sediment formation in an ebullated bed process
    Patent number: 4895639
    Abstract: In an ebullated bed process, a residual hydrocarbon oil and a hydrogen containing gas is passed upwardly through an ebullated bed of catalyst in a hydrocracking zone at a temperature in the range of 650.degree. F. to 950.degree. F. and pressure of 1000 psia to 5000 psia. FCCU catalyst fines are added to the ebullated bed in an amount of 15 wt % to 21 wt % of total catalyst comprising hydrocracking catalyst and fines. A hydrocracked oil is recovered characterized by having a reduced sediment content.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: January 23, 1990
    Assignee: Texaco, Inc.
    Inventors: Michael P. Bellinger, Scott M. Sayles
  • Chair construction
    Patent number: 4892355
    Abstract: The apparatus comprises a chair having a frame with a forward and rear transverse supporting members. A seat is mounted to the forward and rear transverse members and further comprises a rear attachment between the seat and the rear transverse supporting member to secure the rear of the seat to the frame. A front attachment member extends from the seat and is adapted to engage the forward transverse supporting member when the rear attachment member engages the rear transverse supporting member. A clip adapted to engage the forward transverse support member secures engagement between the front attachment member and the forward transverse supporting member. The seat is constructed having a peripheral groove which is disposed behind or underneath the seat so as not to be visible when standing in front of the chair.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: January 9, 1990
    Assignee: Samsonite Furniture Company
    Inventor: Fritz M. Fend
  • Liquid degaser in an ebullated bed process
    Patent number: 4886644
    Abstract: In an ebullated bed reactor it has been found that an improved gas-liquid separator effectively removes gas from recycle liquid used to ebullate the catalyst bed. The gas-liquid separator comprises a cup with a plurality of riser conduits. Helical members are positioned within the riser conduits which impart a tangential velocity component to the fluid. Cyclone separators effect the final liquid-vapor separation. Vapor is directed to a vapor rich zone in the reactor.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: December 12, 1989
    Assignee: Texaco Inc.
    Inventors: Ting Y. Chan, James H. Colvert
  • Lube oil solvent dewaxing control system
    Patent number: 4885062
    Abstract: A control system controls a lubricating oil dewaxing apparatus. The temperature of waxy oil flowing through the apparatus is controlled. A sequential plurality of temperature sensing means senses the temperature of the waxy oil. A Comparing Means determines an isothermal heat transfer zone corresponding to latent heat transfer wax crystallization. Temperature upstream of the isothermal zone is controlled to a selected chilling rate. Temperature downstream of the isothermal zone is controlled to a selected filtering temperature. The control system effects the growth of wax crystals of a uniform and moderate size for optimum filtering rate and oil content.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: December 5, 1989
    Assignee: Texaco Inc.
    Inventors: Charles W. Harrison, Michael J. Gerondale, Anthony J. Patrone, James O. Y. Ong
  • Process for preparing overbased calcium sulfonates
    Patent number: 4879053
    Abstract: In the preparation of an overbased calcium sulfonate from a chloride free calcium sulfonate and calcium oxide, it has been found that 0.4 to 0.9 wt % calcium chloride improves the overbasing reaction rate.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: November 7, 1989
    Assignee: Texaco Inc.
    Inventors: Leonard A. Matthews, William J. Powers, III, Henry M. Przybyla, Joanne R. Whittle, Jerry C. Perciful
  • Bubble cap assembly in an ebullated bed reactor
    Patent number: 4874583
    Abstract: A bubble cap assembly and distributor plate is revealed uniquely suited for a reactor in an ebullated bed process. In the riser of the bubble cap assembly a ball check valve is mounted on a valve seat. An orifice mixer below the valve seat delivers a homogeneous vapor-liquid mixture to the orifice in the valve seat thereby minimizing slug flow which causes destructive valve chatter. The fluid outlet port is positioned in the riser to hydraulically limit ball travel between the valve seat and the cap, eliminating the need for pins or other restraints.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: October 17, 1989
    Assignee: Texaco Inc.
    Inventor: James H. Colvert
  • Amidoamine co-curatives in epoxy thermoset adhesives
    Patent number: 4853456
    Abstract: The invention is an epoxy resin thermoset adhesive composition. The composition comprises the cured reaction product of:(A) an epoxy base resin, and(B) a curing amount of an admixture comprising:1. an amidoamine of the formula: ##STR1## wherein: P is an iso or para phenylene moiety, and R is the polyoxypropylene moiety of the formula:H.sub.2 NCH(CH.sub.3)CH.sub.2 --[OCH.sub.2 CH(CH.sub.3)].sub.x NH--wherein: x ranges from 2 to 40, and2. an aliphatic polyetheramine, aromatic amine or mixture thereof.The compositions cured at elevated temperature cross-link to form adhesives demonstrating high peel strength and high shear strength.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: August 1, 1989
    Assignee: Texaco Chemical Company
    Inventors: Kathy B. Sellstrom, Terry L. Renken
  • Bis(diaminopolyalkoxy)-N-alkylamines by amination of hydroxyl-containing tertiary amines
    Patent number: 4847417
    Abstract: A method for converting a bis(polyalkoxy)-N-alkylamine to a bis(diaminopolyalkoxy)-N-alkylamine has been discovered. The method comprises alkoxylating an alkylamine to a bis(polyalkoxy)-N-alkylamine. The alkylamine is selected to sterically hinder the resulting tertiary amine. The alkoxylate is then catalytically aminated according to well known procedures with a high yield of the diamine resulting.Compounds prepared by this method are of the formula:R--N--(PO.sub.x --NH.sub.2).sub.2wherein:PO is propylene oxide,x ranges from 2 to 40, andR is a sterically hindering alkyl such as isopropyl or tertiary butyl.The compounds are useful for curing epoxy thermoset resins. They are uniquely suited to reactions with polyisocyanates to prepare plastic parts, such as automobile body panels, by reaction injection molding.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: July 11, 1989
    Assignee: Texaco Inc.
    Inventors: John M. Larkin, George P. Speranza
  • Epoxy coatings using acrylate esters, polyetherpolyamines and piperazine(s)
    Patent number: 4835241
    Abstract: The invention is an epoxy resin coating composition. The composition comprises:1. a bisphenol A resin, and2. an acrylate ester, reacted with a mixture of3. a polyether polyamine of the formula:a. NH.sub.2 CH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2wherein x ranges from 2 to 6, orb. ##STR1## wherein x+y+z ranges from 4 to 6; and 4. piperazine.The weather resistant formulations cure rapidly to form attractive blemish-free, blush-free coatings.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: May 30, 1989
    Assignee: Texaco Inc.
    Inventor: Harold G. Waddill
  • Method of FCCU spent catalyst regeneration and extension tube means
    Patent number: 4828802
    Abstract: A method for supplying spent catalyst to a catalyst regenerator comprises (1) guiding the flow of spent catalyst from the lower end of a spent catalyst standpipe downwardly therefrom and (2) curving the downward flow of spent catalyst away from the wall of the catalyst regenerator towards the vertical center line of the air distributor for providing the most thorough and even distribution of spent catalyst and air. An extension tube means for performing the method is also disclosed.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: May 9, 1989
    Assignee: Texaco Inc.
    Inventors: James H. Colvert, Thomas A. Lionetti, John P. MacLean
  • Polymer concrete composition for cementitious road repair and overlay
    Patent number: 4828879
    Abstract: A polymer concrete system has been discovered which is useful in road overlay and repair. The binder for this aggregate-filled system consists of a liquid opoxy resin and triethyleneglycol diamine or tetraethylene glycol diamine curing agent. A piperazine accelerator ensures adequate strength development after short cure times at ambient temperatures.The binder-aggregate system is relatively flexible, has excellent compression and flexural strength and adheres well to the substrate. The system is distinguished by its fast cure to a compression strength of 3000 psi which will support automotive traffic.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: May 9, 1989
    Assignee: Texaco Inc.
    Inventors: Kathy B. Sellstrom, Harold G. Waddill
  • Magnetic filter apparatus
    Patent number: 4826592
    Abstract: An apparatus is disclosed for enhancing the performance of filters, particularly oil filters for internal combustion engines. The apparatus includes a frame having a top and bottom section connected together by a plurality of spaced longitudinal elements. The longitudinal elements are disposed radially apart from the filter housing so as to create a flow path for circulating air to cool the fluid within the filter. A magnet is mounted in the bottom section to help attract small magnetic particles which may not have been removed by the filtering medium within the filter. A wire coil is mounted in the top section to further assist in removal of suspended magnetic particles and to aid in precipitation of carbonaceous materials suspended in the circulating oil.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: May 2, 1989
    Inventor: Robert E. Taylor