Phillips Petroleum Company

Other

Paul J Cheng

King L Mills

John W Vanderveen

Tammy M Elkins

Harold R Hunt

Robert M Schirmer

Carl J Stacy

Kenneth E Inkrott

Gerard Kraus

A device discharges fragrance during the dispensing of toilet seat covers generally includes a retainer for holding the toilet seat covers and at least one scent reservoir. The scent reservoir is disposed in the inside of the retainer and in contact with the toilet seat covers. At least one opening is also disposed in the retainer and defines an opening for dispensing the seat covers and discharging fragrance. In the process of usage of the seat cover, a user removes the seat cover from the retainer by pulling the seat cover through the opening. The pulling of the seat cover creates friction on the scent reservoir and enables the fragrance particles to be released. The fragrance air flows out from the opening with the seat cover and disburses scented air into the ambient air.

Fragrance discharging toilet seat cover dispensing device

A method is provided for producing a carbide compound, such as silicon carbide. A reactor is provided which has a chamber defined therein which is divided into a combustion zone and a reaction zone. A combustible mixture comprising carbon monoxide and an oxidant is injected into the combustion zone and accordingly combusted to form hot combustion products. At least one reactant is injected at the boundary between the zones so as to be carried into the reaction zone by the combustion products and react to produce a precursor product powder comprising an oxide, such as silicon dioxide, and carbon. This precursor product powder is heated in an inert atmosphere to yield the desired carbide compound.

Method for producing carbide products

In the production of carbon black, low BTU content gases are combusted in a compact combustion zone with near stoichiometric amounts of oxidant gases, tempered to the desired temperature and volume with a diluent gas stream which can be selected from air and filter off-gases, and introduced into a reactor for the pyrolysis of a carbonceous feedstock to form carbon black.

Apparatus for producing carbon black

The moving of adjacent axial stream at sufficiently different speeds to create turbulence and rapid mixing of feedstock and hot gases in a carbon black reactor is utilized to provide a high surface area carbon black.

High mixing reactor process

Pitch is converted to mesophase pitch in the presence of catalytically effective amounts of oxides, diketones, carboxylates and carbonyls of metals selected from vanadium, chromium, molybdenum, iron, nickel and cobalt. The crystalloidal or mesophase pitch obtained can be used for the production of carbon fibers and other carbon and graphite products and articles of manufacture of unusually high quality.

Pitch conversion

A method for producing carbon black employing a carbon black reactor which comprises

Counter-rotational flow in a carbon black reactor

Aerosols such as a carbon black containing smoke are subjected to an auto-preseparation by passing the aerosol or smoke through loose particles collected and accumulated and only thereafter passing the aerosol or smoke through a separator such as a filter bag. This changes the characteristic of the aerosol in either reducing the total content of solids or increasing the average particle size of the solids in the aerosol or achieving both of these features. Thereby the load on the downstream separator and the capacity of the separator, e.g. a carbon black filter house, is substantially reduced.

Auto-preseparation of carbon black

The tint residual of carbon black being produced in an oil furnace charging oxygen-enriched air falls as oxygen enrichment increases. An apparatus for conducting the process utilizing a low BTU fuel with external tangential combustors is also disclosed.

Method for producing carbon black

Feed oils are injected axially into a carbon black reactor in a manner which slows buildup of deposits in the reactor. This is accomplished utilizing a nozzle configuration for injecting the feed oil into the carbon black reactor so that deposit-forming contaminants are directed away from the walls of the reactor. In one aspect, the feed oil is separated into two streams, one stream is contaminant-rich and the other is substantially contaminant-free. The contaminant-rich stream is fed into the reactor surrounded by the substantially contaminant-free stream. In another embodiment, a feed nozzle for a carbon black reactor is formed by a first feed tube surrounded coaxially by a second feed tube. The first feed tube can be utilized to inject contaminant-rich feed oil into the reactor. The second feed tube can be utilized to inject contaminant-free oil into the reactor in a manner such that it surrounds the contaminant-rich stream. In an embodiment, one or more nozzles is provided at the outlet ends of the feed tubes for advantageous spray of feedstock.

Decreasing carbon black reactor fouling rate

A novel heat exchanger for recuperating heat from a combustion gas stream is disclosed. The heat is recuperated in a steam generator formed from a shell and tube heat exchanger. To reduce deposits on the combustion gas side of the heat exchanger the tube walls are porous so that the pressure across the tube walls during steam generation will continuously drive a small amount of water or steam from the liquid side to the smoke side to remove deposits on the tubes.

Self-cleaning heat exchanger

The tint residual of produced carbon black appears to go through a maximum value at a toluene photelometer of between about 65 and about 75. A process is disclosed for maximizing the tint residual of carbon black product at constant reactor volume and combustion gas flow by measuring the photelometer of the produced carbon black and changing the feedstock rate so that the photelometer of the carbon black being produced falls within the range of 65 to about 75.

Method of producing carbon black

A counter-rotational flow of combustion gas within a carbon black reactor is created by a baffle, such as an axially aligned helix-shaped fin, to promote the mixing of combustion gas and feedstock.

A venturi tube fluid flow meter comprising an inlet section with a first pressure probe upstream of the throat section that is an inner-end closed tube traversing the diameter of the inlet section and pressure probe that is a capped tube extending into the flow path of the throat section at the minimum diameter thereof with this tube containing two perforations 180.degree. apart and orthogonal to the center line of the throat section.

Growing community of inventors

Bartlesville, OK, United States of America

Paul J Cheng