Method and equipment for removing volatile compounds from air
First Claim
1. A method for removing volatile compounds from air, which method comprises passing the air over an adsorber comprising a monolithic porous carbon to adsorb the volatile compounds, and then passing an electric current through the adsorber to heat the adsorber and drive off at least some of the adsorbed compounds wherein the monolithic porous carbon is made by partially curing a phenolic resin to a solid, comminuting the partially cured resin, sintering the comminuted resin so as to produce a form-stable sintered product and carbonising the form-stable sintered product.
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Abstract
A regenerable adsorber for removing VOCs from gas streams consists of a porous monolithic carbon which can be regenerated by heating by passing an electric current through it.
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16 Claims
- 1. A method for removing volatile compounds from air, which method comprises passing the air over an adsorber comprising a monolithic porous carbon to adsorb the volatile compounds, and then passing an electric current through the adsorber to heat the adsorber and drive off at least some of the adsorbed compounds wherein the monolithic porous carbon is made by partially curing a phenolic resin to a solid, comminuting the partially cured resin, sintering the comminuted resin so as to produce a form-stable sintered product and carbonising the form-stable sintered product.
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15. Apparatus for the regenerable adsorption of VOCs, the apparatus which comprises an adsorber bed which comprises a monolithic porous carbon, wherein the monolithic porous carbon is made by partially curing a phenolic resin to a solid, comminuting the partially cured resin, sintering the comminuted resin so as to produce a form-stable sintered product and carbonising the form-stable sintered product;
- a gas inlet and a gas outlet for the adsorber bed, whereby gas or vapor can be passed over the adsorber bed, and means for passing an electric current through the adsorber bed.
- View Dependent Claims (16)
Specification