PROCEDURE FOR THE ELIMINATION OF HYDROGEN SULFIDE FROM A COMBUSTIBLE EXHAUST GAS.

摘要

THERE IS A PROCEDURE, WHICH WORKS THROUGH A BIOLOGICAL REACTOR (8), IN WHICH THE MICROORGANISMS ARE IMMOBILIZED; IN WHICH, THE EXHAUST GAS (1) TO BE PURIFIED, WHICH CONTAINS HYDROGEN SULFIDE, REMAINS OXIDIZED, PREVIOUS LIMITATION OF OXYGEN THROUGH THE MICROORGANISMS. IN THIS, A CURRENT OF AN OXIDIZING PRODUCT, WHICH CONTAINS OXYGEN, IS CONDUCTED IN A DIRECT CURRENT, UP TO THE EXHAUST GAS (1) SO THAT A CLEAN GAS (7) IS PRODUCED, WITH A RESIDUAL OXYGEN CONCENTRATION LESS THAN 3 VOL . %. IT IS DESIRABLE THAT, IN THE ADAPTATION TO THE MASS AND COMPONENT OF THE GASES THAT ARE SENT TO THE REACTOR, THE OXYGEN CONTENT IN THE EXHAUST GAS, REMAIN PROGRESSIVELY AT A LOW VALUE. THIS IS ACHIEVED, ALWAYS THAT THE RESIDUAL OXYGEN CONCENTRATION IN THE PURIFIED GAS (7) IS MEASURED BY MEANS OF AN OXYGEN MEASURING DEVICE (9) AND ALWAYS THAT A CONTROL CALCULATOR (10) COUPLED ON-LINE, CONTROLLING A FAN (11), SUBORDINATED TO THE CURRENT OF OXIDIZING ELEMENTS, ACCORDING TO A REGULATORY ALGORITHM OF THE CONCENTRATION OF RESIDUAL OXYGEN, MAXIMUM OF 3 VOL. % IN THE PURIFIED GAS. THROUGH THE REGULATORY CLOSED CIRCUIT, A BLEND OF AIR AND EXPLOSIVE GAS IS PREVENTED.