'process for the recovery of sulphur from gaseous streams rich in ammonia, from acid gas and sulphur dioxide streams'

摘要

The invention relates to a process for the recovery of sulphur from gaseous streams rich in ammonia, optionally containing hydrogen sulphide, together with acid gas streams, being the NH3/H2S volume ratio, referred to the overall stream of the two gaseous streams, higher than 30. The process allows also to convert into hydrogen sulphide the sulphur dioxide contained in industrial effluents and to proceed to the recovery of sulphur together with the two above mentioned gaseous streams. Figure 04