“…The former methods require subsequent desorption, or secondary disposal of the collection media, as well as large collection capacity for continuous industrial processes (2 >. The latter method has shown a measure of success at very high temperatures, but efficiencies are low, and the method appears to be impractical at prevailing fuel costs in most areas ^K Recently, however, it has been found that the use of a catalyst can complete the decomposition desired, when nominal amounts of fuel are added to promote the reaction.…”