Process and device for thermal treatment of gas, in particular thermal and/or catalytic after-burning of waste gas
First Claim
1. A process for the thermal treatment of a gas, said process comprising the steps of heating a gas to be processed, by first passing a quantity of said gas to be processed through a gas permeable and microwave permeable primary body and thereafter passing said gas to be processed through a gas permeable secondary body containing microwave-absorbing material, heating the secondary body by radiation with microwaves from a microwave generator and heating the gas to be processed in said secondary body by contacting said gas to be processed with said secondary body as said gas to be processed passes through said secondary body.
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Accused Products
Abstract
The invention relates to a process for thermal treatment of gas, in particular for thermal and/or catalytic after-burning of waste gas, in which the gas is conducted through a gas-permeable, in particular fibrous or porous body, which consists at least partly of material which absorbs microwaves, and in which the body is heated by irradiation with microwaves and the gas is heated when flowing through the body, by contact with said body.
32 Citations
19 Claims
- 1. A process for the thermal treatment of a gas, said process comprising the steps of heating a gas to be processed, by first passing a quantity of said gas to be processed through a gas permeable and microwave permeable primary body and thereafter passing said gas to be processed through a gas permeable secondary body containing microwave-absorbing material, heating the secondary body by radiation with microwaves from a microwave generator and heating the gas to be processed in said secondary body by contacting said gas to be processed with said secondary body as said gas to be processed passes through said secondary body.
- 9. A device for carrying out a process of thermal treatment of gas, said device comprising a housing which defines a reaction zone, said housing being formed with a gas inlet opening and a gas outlet opening arranged to permit gas to flow along a path which extends through the reaction zone, first and second gas permeable bodies arranged in said reaction zone such that gas flowing along said path first passes through said first body and thereafter passes through said second body, said first body being microwave-permeable and said second body being microwave-absorbent, and at least one microwave generator positioned adjacent to said bodies and arranged to direct microwaves through said first body and into said second body.
Specification