Influence of concurrent substances on removal of hydrogen sulfide by activated carbon

The influence of concurrent substances on the removal of hydrogen sulfide by activated carbon was determined. The hydrogen sulfide removal ratio of an activated carbon column was measured after breakthrough of each of the substances used. At 30°C, the adsorption capacity of carbon for toluene, ethanol, carbon disulfide, butanol and isobutanol was 0.19, 0.036, 0.043, 0.13 and 0.12g/g-carbon, respectively. The removal ratio of hydrogen sulfide decreased in proportion to the amount of these substances adsorbed. Ammonia was hardly adsorbed at all by activated carbon, while the removal ratio of hydrogen sulfide increased in the presence of ammonia.