Apparatus for low flux photocatalytic pollution control
AssigneeUniversity of Central Florida
InventorsAli Tabatabaie-Raissi, Nazim Z. Muradov, Eric Martin
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Abstract
A new apparatus for design and scale-up of photocatalytic and thermocatalytic processes is disclosed. The apparatus is based on optimizing photoprocess energetics by decoupling of the process energy efficiency from the DRE for target contaminants and is applicable to both low- and high-flux photoreactor design and scale-up. The low-flux apparatus is based on the implementation of natural biopolymeric and other low-pressure drop media support for titanium dioxide and other band-gap photocatalysts and is further based on the implementation of multifunctional metal oxide aerogels and other media in conjunction with a novel rotating fluidized particle bed reactor.
Claims34
An apparatus for low flux photocatalytic pollution control comprising:
- means for inputting a target pollutant, said means adapted to provide a varying flow rate;
- a low flux longitudinal light source having a first end and a second end;
- a first stage photocatalytic reactor having a first length about the first end of the light source, for converting a first portion of the varying flow rate target pollutant to a pre-determined level of destruction and removal efficiency(DRE) by passing the target pollutant through the first stage photocatalytic reactor;
- and
- a last stage photocatalytic reactor having a second length about the second end of the light source for converting a last portion of the target pollutant passing through the last stage photocatalytic reactor a selected final DRE level;
- and
- a photocatalytic means in each of the first stage photocatalytic reactor and the last stage photocatalytic reactor for converting the first portion and the last portion of the target pollutant to the predetermined DRE level and the selected final DRE level, the photocatalytic means having a solely organic polymer substrate for a catalyst, adapted to operate below a sol-gel processing temperature.
An apparatus for low flux photocatalytic pollution control comprising:
- means for inputting a target pollutant, said means adapted to provide a varying flow rate;
- first low flux longitudinal lamps positioned parallel to each other;
- last low flux longitudinal lamps positioned parallel to each other, and in series with the first low flux longitudinal lamps;
- first stage photocatalytic reactors, positioned parallel to each other, each of the first stage photocatalytic reactors housing each of the first stage flow flux longitudinal lamps, wherein the first stage photocatalytic reactors converts a first portion of the varying flow rate target pollutant passing therethrough to a pre-determined level of destruction and removal efficiency(DRE) by passing the target pollutant through the first stage photocatalytic reactor;
- and
- a last stage photocatalytic reactors, positioned parallel to each other, each of the last stage photocatalytic reactors including each of the last stage low flux longitudinal lamps, wherein the last stage photocatalytic reactors converts a last portion of the target pollutants passing through the last stage photocatalytic reactors to a selected final DRE level;
- and
- a photocatalytic means in each of the first stage photocatalytic reactors and the last stage photocatalytic reactors for converting the first portion and the last portion of the target pollutant to the predetermined DRE level and the selected final DRE level, the photocatalytic means having a solely organic polymer substrate for a catalyst, adapted to operate below a sol-gel processing temperature.
An apparatus for low flux photocatalytic pollution control comprising:
- means for inputting a target pollutant, said means adapted to provide a varying flow rate;
- a first stage photocatalytic reactor having a first single low flux longitudinal lamp for converting a first portion of the varying flow rate target pollutant passing therethrough to a pre-determined level of destruction and removal efficiency(DRE) by passing the target pollutant through the first stage photocatalytic reactor;
- a last stage photocatalytic reactor having a last single low flux longitudinal lamp for converting a last portion of the target pollutant passing therethrough to the pre-determined final level of destruction and removal efficiency(DRE);
- and
- a photocatalytic means in each of the first stage photocatalytic reactor and the last stage photocatalytic reactor for converting the first portion and the last portion of the target pollutant to the predetermined DRE level and the selected final DRE level, the photocatalytic means having a solely organic polymer substrate for a catalyst, adapted to operate below a sol-gel processing temperature.
Dependencies are inferred from the claim text.