Method and apparatus for producing carbon black
AssigneePhillips Petroleum Company
InventorOliver K. Austin
Life of this patent
Estimating the term…
Abstract
In a furnace system for producing carbon black, a primary quench fluid is injected into the combustion products from the furnace to produce effluent. The effluent is passed through a trim quench chamber containing a tubular member. The tubular member has an internal flow path therethrough and is positioned in the housing defining the quench chamber to form an outer flow path therebetween. Part of the effluent flowing through the quench chamber passes through the internal flow path while the remainder passes through the outer flow path. Quench liquid is introduced into the quench chamber for initial contact with substantially only the portion of the effluent passing through the internal flow path.
Claims24
An apparatus for cooling gases, said apparatus including:
- first means for producing hot gases;
- a first tubular member defining a first quench compartment in flow communication with and downstream of said first means, said first tubular member having a first discharge;
- vaporization means for substantially completely vaporizing a quench liquid introduced into said first tubular member, said vaporization means comprising a second tubular member mounted within and extending generally along the longitudinal axis of, a portion of said first quench compartment, with a substantial portion of the exterior surface of said second tubular member being spaced from the traversely adjacent interior surface of said first tubular member, thereby forming a first flow path between said first and second tubular members, said second tubular member having a second flow path extending therethrough, having first and second open ends with said first open end being upstream of said second open end and being effective for substantially complete vaporization in said second flow path of a quench liquid introduced thereinto;
- and
- first inlet means opening into said first quench compartment and being operable for introducing said quench liquid into said second flow path for flow along said second flow path in a direction generally from said first open end to said second open end.
A method which comprises:
- producing a hot gaseous stream;
- separating said hot gaseous stream into a first portion and a second portion;
- flowing said first portion along a first flow path in a first quench zone and flowing said second portion along a second flow path in the first quench zone with said first flow path partially surrounding the second flow path;
- contacting substantially only said second portion with quench liquid as said first and second portions flow along said first and second flow paths to thereby further cool said second portion and to substantially completely vaporize said quench liquid;
- and
- admixing said first and second portions after flow along said first and second flow paths.
Dependencies are inferred from the claim text.