Gas separation: apparatus – Solid sorbent apparatus – Plural solid sorbent beds
Reexamination Certificate
2002-07-11
2003-12-23
Spitzer, Robert H. (Department: 1724)
Gas separation: apparatus
Solid sorbent apparatus
Plural solid sorbent beds
C096S123000, C096S128000, C096S130000, C096S146000, C096S150000
Reexamination Certificate
active
06666911
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a treatment system for waste gas containing volatile organic compounds (VOCs), and more specifically to a system which uses a zeolite revolver to absorb the VOCs and reuses recycled VOCs as fuel to lower operating cost and increase operated efficiency of this system.
2. Description of Related Art
Many chemical industries such as refining oil, petrochemistry, artificial leather making, adhesive tape making, paint making, coating, semiconductor producing, etc. produce waste gas that contains VOCs to cause serious air pollution.
Various conventional systems for cleaning air commonly use an incinerating system to decompose the VOCs directly to make the released VOC environmental standards. Incinerating methods basically include direct incineration and incineration using catalyst. Most incinerating systems recycle heat by recuperative heat recovery but less than 70% rate of the heat is recycled. Additionally, other incinerating systems, such as regenerative thermal oxidizer (RTO) and regenerative catalytic oxidizer (RCO) systems, use regenerative heat recovery to recycle heat and recycled more than 90% of the heat. However, no matter which incinerating system described above is, the concentration of VOCs in all of the foregoing incineration systems is not adequate to completely fuel the process, and extra fuel or electrothermal energy has to be added to the incinerating system. Therefore, the operating cost of the conventional incinerating systems is extremely high.
Therefore, the present invention mitigates and/or eliminates the existing problems of conventional incinerating systems for treating waste gas containing VOCs.
SUMMARY OF THE INVENTION
A first objective of the invention is to provide a treatment system for waste gas containing VOCs, wherein the treatment system is operated continuously and economically to achieve high efficiency.
A second objective of the invention is to provide a treatment system for waste gas containing VOCs that have efficient heat utilization.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 3455089 (1969-07-01), Mattia
patent: 4348362 (1982-09-01), Foss
patent: 4409006 (1983-10-01), Mattia
patent: 4775484 (1988-10-01), Schmidt et al.
patent: 4869734 (1989-09-01), Jacquish
patent: 4946479 (1990-08-01), Izumo
patent: 4966611 (1990-10-01), Schumacher et al.
patent: 4986836 (1991-01-01), Tandon
patent: 4995890 (1991-02-01), Croudace
patent: 5567229 (1996-10-01), Klobucar et al.
patent: 5701762 (1997-12-01), Akamatsu et al.
patent: 5908490 (1999-06-01), Akamatsu et al.
patent: 6080227 (2000-06-01), Kurosawa et al.
patent: 6364943 (2002-04-01), Maekawa
patent: 6372018 (2002-04-01), Cowles
Chou Ming-Shean
Nolet Stephen C.
Quigley Peter A.
Wideman Thomas W.
Dellett & Walters
Spitzer Robert H.
Zhong Huan Environment Advisor Corp.
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