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Class 196/132 - Automatic control


Subclass of Class 196 - Mineral oils: apparatus
Definition: Mineral-oil vaporizers provided with means for automatically
No. of patents: 86
Last issue date: 01/08/2008


1      
NumberTitleIssue Date
7316127Hydrocarbon gas processing for rich gas streams
A process for the recovery of ethane and heavier hydrocarbon components from a hydrocarbon feed gas stream. Feed gas stream is cooled into a first and second cooled streams. First and second cooled streams are sent to a cold absorber and separated into a first gas s...
01/08/2008
7208570Method of refining tall oil
The present invention relates to a method of refining crude tall oil. According to the method, the crude tall oil is fed into a column distiller, where it is separated into desired fractions. The conditions of the column distiller are adjusted on the basis of the co...
04/24/2007
7033460Coke drum bottom throttling valve and system
A coke drum bottom de-heading system having an internal shroud enclosure and a shroud end cap opened by a flange to a coke bottom de-heading valve capable of accepting the end of a gate valve upon actuation. Acting in coordination with the shroud enclosure to preven...
04/25/2006
6740205Processing of shipboard wastewater
Incoming wastewater is preheated in a heat exchanger before delivery to a flash chamber through an orifice for flashing into water vapor rising into an upper section of the flash chamber which also has a bottom section into which liquid waste oil or other contaminan...
05/25/2004
6558515Dividing wall fractionation column control system and apparatus
A control method and apparatus for regulating the rate of vapor flow in the two adjacent sections of a dividing wall fractional distillation column are presented. The liquid level on a tray at the top of each section is used to control the rate of vapor f...
05/06/2003
6551465Dividing wall column control system
The operation of the dividing wall section of a dividing wall column is controlled by a control apparatus comprising a ratio controller which divides the liquid flowing into the dividing wall section. The rate of return of overhead liquid to the column is...
04/22/2003
6413361Heavy oil emulsified fuel evaporator system and operation method thereof
A heavy oil emulsified fuel evaporator system is provided in which a heavy oil emulsified fuel, after being preheated at a preheater, flows into an evaporator to be heated and then to a separator for separation of its water content. The water content, aft...
07/02/2002
6413378Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification
An extractive distillation tower 4 supplied with a feedstock containing butadiene and a solvent and for distilling the feedstock to separate and purify the butadiene. The tower 4 includes sensors 32, 34 for detecting concentrations of specific impurities ...
07/02/2002
6287455Purifier for lubricating oil or hydraulic oil
The present invention provides a means of removing water, antifreeze and fuel from lubricating or hydraulic oil by evaporating these impurities and venting them out of the purifier. The oil is heated by heat of an exposed horizontal heating wand within th...
09/11/2001
6277247Operation method of a plant for distilling liquid products and plant for realizing the same
The invention pertains to the field of the petrochemical industry. The invention essentially relates to a system and method that includes feeding of a liquid having molecular weight more than 100 (in atomic mass units) into a nozzle of an ejector as a mot...
08/21/2001
6224716Apparatus for dehydrating oil
A system for dehydrating lubricating and hydraulic fluids includes a heating circuit and circuitry for creating a vacuum. The heating circuitry introduces a stream of heated fluid into a vacuum chamber in which a partial vacuum is drawn by the vacuum circ...
05/01/2001
6045659Device for recovery of excess gas in an oil/gas treatment plant
The invention relates to the recovery of excess gas which is formed in an oil/gas treatment plant, more specifically in a production plant where gas-containing oil in a separation plant is separated into a gas fraction and an oil fraction which are indivi...
04/04/2000
5980694Apparatus for the purification of water contaminated with oil
An installation for cleaning oil-polluted water, in particular at oil and gas production plants, is provided with a distillation column having a polluted water feed and at least one contact packing above which the outlet of the polluted water feed is loca...
11/09/1999
5855742Decoking process and device
A device for drilling a layer of coke within a reactor to effect the decoking of the reactor includes a decoking tool arranged at one end of a hose for conveying a decoking fluid to the tool. The decoking tool has a first part and a second part coaxial wi...
01/05/1999
5814207Oil re-refining method and apparatus
A method and apparatus for re-refining used oil, in which the used oil is processed in at least one cyclonic vacuum evaporator comprising a void evaporation chamber (4) into which feedstock is tangentially injected, and in which a fraction of the feedstoc...
09/29/1998
5795462Apparatus and method for reclaiming useful oil products from waste oil
Apparatus for reclaiming a useful oil product has an evaporation chamber, including an inlet for the waste oil, and an outlet for the vaporized oil, as a useful oil product. Burners are provided for heating the evaporation chamber to vaporized oil from th...
08/18/1998
5302253On-line acid monitor and neutralizer feed control of the overhead water in oil refineries
A method and apparatus for automatically measuring the acidity of overhead water in an oil refinery, and dispensing a neutralizing agent into the refinery system at a rate responsive to that measurement. A sample of overhead water is collected and passed ...
04/12/1994
5286349Apparatus for reclaiming useful oil products from waste oil
Apparatus for reclaiming a useful oil product has an evaporation chamber, including an inlet for the waste oil, and an outlet for the vaporized oil, as a useful oil product. Burners are provided for heating the evaporation chamber to vaporize oil from the...
02/15/1994
5271808Apparatus from waste oil for reclaiming a useful oil product
An apparatus and a method are provided reclaiming a useful oil product from waste oil, such as used lubricating oil. The apparatus comprises an oil feed means, a boiler, a heater and a separating means. The heater is used to heat the waste oil in the boil...
12/21/1993
5047125Fractionating column control apparatus and methods
Apparatus and methods for determining the Reid Vapor Pressure of either an overhead, side draw or bottoms product stream of a fractionating column used for fractionating a multi-component hydrocarbon feed stream into an overhead product stream, a side dra...
09/10/1991
5024730Control system for delayed coker
A system controls a delayed coker in which a heavy liquid hydrocarbon feedstock is thermally decomposed to a solid coke product in a cyclical process. When the coking portion of the cycle is completed, the coke in the drum is cooled by quench water, and t...
06/18/1991
5015587Reformer optimization for head limited recycle system
A reformer optimization system including the injection of non-reactive gas into hydrogen recycle gas for increasing hydrogen flow through a recycle compressor. Non-reactive gas is injected into hydrogen-rich gas fed to the compressor at least as early as ...
05/14/1991
5008085Apparatus for thermal treatment of a hydrocarbon stream
An apparatus is disclosed for improving the transportability of a hydrocarbon stream by reducing its viscosity. The apparatus comprises a reactor vessel useful for providing an incremental amount of heat to a hydrocarbon stream by the introduction of an o...
04/16/1991
5000924Autoacceleration control for exothermic reactors
An autoacceleration control for a catalytic hydrocracker wherein, by means of a model of the reactor, there is generated a signel predicting the reaction temperature and means under the control of the signal adjusting the rate of application of a correcti...
03/19/1991
4985140Apparatus for measuring flash point of petroleum intermediate fraction and method for controlling flash point
There is here disclosed an apparatus for continuously measuring on an on-line system a flash point of an intermediate fraction such as kerosene in a petroleum distillation process from a difference between gas concentrations of the intermediate fraction a...
01/15/1991
4983259Overland petroleum processor
A mobile petroleum processor or refinery. In particular a petroleum processor or refinery which has been constructed on railroad flatbed cars. The different units that make up the refinery are mounted on individual flat bed railroad cars and connected tog...
01/08/1991
4944845Apparatus for upgrading liquid hydrocarbons
Apparatus for the treatment of a liquid hydrocarbon charge containing solids or solids-forming contaminants, e.g., inorganic solids, metals and asphaltenes, which includes a contactor vessel having a liquid charge inlet, a vaporizing media inlet above the...
07/31/1990
4889600Fractionating column control apparatus and methods
Apparatus and methods for determining the Reid Vapor Pressure of a bottoms product stream of a fractionating column used for fractionating a multi-component hydrocarbon feed stream into an overhead product stream and a bottoms product stream are provided....
12/26/1989
4817009Furnace zone temperature control
A computer system for a zone fired furnace generates a plurality of temperature set point signals for a plurality of furnace zones. The set point signals are derived from a master controller acting on the measured temperature of fluid that is heated in th...
03/28/1989
4792436Hydrocarbon converter furnace
A hydrocarbon converter furnace has an upper convection heating zone and a lower radiant heating zone, and tubing extends in those zones to convey a fluid hydrocarbon feed and steam in sequence through the convection and radiant heating zones. The tubing ...
12/20/1988
4747912Cracking furnace control
For parallel heat exchangers, one using a more preferred heat exchange medium as a heat exchange source and another using a less preferred heat exchange medium, maximum use of the more preferred heat exchange medium is used prior to use of the less prefer...
05/31/1988
4746407Fractionator reflux pump method and apparatus
In a fractional distillation process, the operation of a reflux pump in the process is enhanced by providing that liquid discharged from the reflux pump is returned directly to the reflux pump suction during the periods when the liquid reflux supply from ...
05/24/1988
4717468Distillation process control for maximum recovery using minimum energy
An improved distillation process and apparatus are provided whereby liquid product recovery other than bottom product is maximized and feed stream heating is minimized. Inert gas streams combined with the feed stream and introduced into the distillation t...
01/05/1988
4624746Process for controlling distillation column
A process for controlling a distillation column in which a feedstock is distilled for separation into a product from the top of the column having a first predetermined content of an intended component with a high boiling point and a product from the botto...
11/25/1986
4612111Control of a crude oil preheat furnace
The temperature of a crude oil provided from a crude oil preheat furnace to a crude tower is substantially minimized by controlling such temperature so as to maintain a desired minimum overflash flow in the crude tower. Also, the temperature of each of th...
09/16/1986
4601381Fluid vacuum distillation system
Apparatus for monitoring fluid condition in a fluid recovery system for removing water and solid contaminants from a fluid is disclosed. One aspect of the present invention relates to an improved fluid level indicator device for indicating and controlling...
07/22/1986
4578151Reid Vapor Pressure determination and control in fractional distillation
The Reid Vapor Pressure of a hydrocarbon mixture consisting essentially of hydrocarbons selected from the same series is determined based on the actual temperature and vapor pressure of the hydrocarbon mixture. The thus determined Reid Vapor Pressure may ...
03/25/1986
4557806Fractional distillation process control
In a fractional distillation process in which a sidedraw product stream is withdrawn from the fractional distillation column, the flow rate of the overhead product stream is controlled so as to increase the flow of the upper external reflux so as to drop ...
12/10/1985
4545895Fractional distillation
Process and apparatus are provided for the recovery of low, medium and high boiling components from feed streams containing same wherein reboiler fouling, gumming and the like are minimized, via the control of fractionator reboiler temperatures....
10/08/1985
4545894Control of an aromatic extraction
In an aromatic extraction process, the flow rate of aromatics to the extraction column is utilized to control the downstream stripping column so as to maintain a desired purity of the aromatic extract stream withdrawn from the stripping column. Also, the ...
10/08/1985
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