ACTIVITY REPLENISHMENT AND IN SITU ACTIVATION FOR ENZYMATIC CO2 CAPTURE PACKED REACTOR

摘要

A method for CO2 capture may include operating a packed reactor comprising a reaction chamber containing packing including immobilized enzymes, by contacting a CO2 containing gas with a liquid solution in the reaction chamber to produce an ion-loaded solution and a CO2 depleted gas by an enzymatically catalyzed hydration reaction; monitoring enzyme activity of the immobilized enzymes; at a low enzyme activity threshold (i) stopping operation in the packed reactor, and (ii) replenishing the enzymatic activity by providing an enzyme replenishing solution into the packed reactor to contact the packing and provide a replenishing amount of the immobilized enzymes; and recommencing operation in the packed reactor for CO2 capture using the replenished immobilized enzymes. A corresponding system may include a packed reactor and an in situ enzyme supply device for supplying active enzyme within the reactor. The enzyme supply device may include spray nozzles with various configurations.

主权项

1. A method for CO2 capture, comprising:
a) operating a packed reactor comprising a reaction chamber containing packing comprising immobilized enzymes, by contacting a CO2 containing gas with a liquid solution in the reaction chamber to produce an ion-loaded solution and a CO2 depleted gas by an enzymatically catalyzed hydration reaction; b) monitoring enzyme activity of the immobilized enzymes; c) at a low enzyme activity threshold:
i) stopping operation in the packed reactor; andii) replenishing the enzymatic activity by providing an enzyme replenishing solution into the packed reactor to contact the packing and provide a replenishing amount of the immobilized enzymes; and d) recommencing operation in the packed reactor for CO2 capture using the replenished immobilized enzymes.