Distillation: processes – thermolytic – With physical separation of solid by-product from removed...
Patent
1996-05-28
1998-01-06
Bhat, Nina
Distillation: processes, thermolytic
With physical separation of solid by-product from removed...
201 25, 201 32, 202118, 202226, 585241, C10B 4718, C10B 5300
Patent
active
057050350
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to means and methods for discharging unreacted components from a reaction process and, more particularly, to discharge unreacted components from a tire liquefying process.
SUMMARY OF THE INVENTION
A discharge system is used with a tire liquefying process using a reactor. The system includes a receiver receiving unreacted components, including oil coated metal, from the reactor. The unreacted components are moved through a pyrolysis reactor where they are heated to a temperature sufficient to convert the unreacted hydrocarbon components to a liquid and to gas by way of pyrolysis. The liquid and the majority of gas are drawn off from the pyrolysis reactor. Discharge apparatus connected to the pyrolysis reactor converts the remaining gas to a condensate and discharges the metal. The condensate is also removed for further use.
The object and advantages of the invention will appear more fully hereinafter from a consideration of the detailed description which follows, taken together with the accompanying drawing, wherein one embodiment of the invention is illustrated by way of example. It is to be expressly understood, however, that the drawing is for illustration purposes only and is not to be construed as defining the limits of the invention.
DESCRIPTION OF THE DRAWING
The FIGURE is a graphical representation of a discharge system constructed in accordance with the present invention.
DESCRIPTION OF THE INVENTION
Referring to the drawing, process reactor means 4, which may be of the type described and disclosed in a U.S. patent application Ser. No. 08/053,727, filed Apr. 27, 1993, is used to react tires and liquid oil, generally in the form of waste oil, to convert most hydrocarbon components of the tires to tire oil. However, in the process, there are unreacted components. Many of the shredded tires, if not all of the shredded tires, will have pieces of metal in them, either from the steel belt, in the steel belted radial-type tires, or from the beading around the edge of the tires. Further, there will also be other unreacted hydrocarbon components. The unreacted components are discharged from process reactor means 4 through a discharge system of the present invention which includes a downward chute-type element 8 connected to a predominantly horizontally arranged conduit element 12. Although the terminology predominantly horizontal has been used, its only used to describe conduit element 12 in spatial relationship to element 8 and other chute-type elements to follow. It is in fact, at a slight angle upward commencing from chute 8, sufficient to let a liquid flow down conduit element 12.
A screw auger 20 having a shaft 24 and a spiral-type blade 28 is continually rotated by drive means 33. Surrounding a portion of conduit element 12 is a pyrolysis reactor 38. Pyrolysis reactor 38 is actually a plurality of electrical surface heaters manufactured by Watlow Inc. mounted on the outer surface of conduit element 12. The output of coils 50 is wrapped around a non-vented portion of chute 45 and carry a cooling liquid such as water as hereinafter explained. Chute 45 is vented with flared vents 49 at various locations and surrounding the venting portion of chute 45 is a chamber 53. Chamber 53 has a pipe 57 connected to tank means 61. Tank means 61 has a discharge pipe 64 including a valve 66.
Similarly, as noted earlier, the conduit element 12 is at one angle of inclination; the bottom of chute 8 is at different angle of inclination so that any fluid as hereinafter explained is directed towards a opening having a screen 70 covering the inlet to a pipe 74. Pipe 74 is connected to another tank means 78 whose outlet pipe 80 includes a valve 84.
Further conduit element 12 has an outlet pipe 86 which causes the majority of the gas to be removed from conduit element 12 and provided to a condensor/collector not shown.
In operation as the unreacted components of the shredded tires fall from process reactor means 4 through chute 8, whe
REFERENCES:
patent: 4686008 (1987-08-01), Gibson
patent: 5057189 (1991-10-01), Apffel
patent: 5411714 (1995-05-01), Wu et al.
patent: 5464503 (1995-11-01), Avetisian et al.
Avetisian Vahan
Castagnoli Craig Joseph
Cha Suk-Bae
Bhat Nina
Gibson Henry H.
Rodman Charles B.
Rodman Philip
Texaco Inc.
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