【Daily Question】August 05, 2015
Thread Content
When the hydrogen sulfide content in acidic gases is between 15% and 50%, sulfur recovery units employ ( ) technology. (A) Partial combustion method (B) Shunt method (C) Direct oxidation method (D) SCOT method
(B) Shunt method.................................
When the hydrogen sulfide content in acidic gases is between 15% and 50%, the sulfur recovery unit uses the (B) process. (A) Partial combustion method (B) Shunt method (C) Direct oxidation method (D) SCOT method
Why is the split-flow method used at this concentration? What are the advantages and disadvantages of this method?
When the hydrogen sulfide content in acidic gases is between 15% and 50%, sulfur recovery units employ ( ) technology. (A) Partial combustion method (B) Split-flow method (C) Direct oxidation method (D) SCOT method B
When the H2S content in acidic gases is between 15-50%, the split-flow process is generally used. The acidic gases, which account for 1/3 of the total feed volume, enter the combustion furnace (1100–1300°C). The air required for combustion is supplied by a blower, with the air supply adjusted so that all hydrocarbons in the acidic gases are completely burned, and H2S is completely burned to produce SO2. For H2S, almost no gaseous sulfur is produced in the furnace; only SO2 is formed. 2/3 of the acidic gases combine with the combustion gases before the primary converter, and together they enter the converter; there, under the action of the catalyst, SO2 and H2S are converted into gaseous sulfur. The subsequent process is the same as that of the DC method.
B. . . . . . . . . .
When the hydrogen sulfide content in acidic gases is between 15% and 50%, the sulfur recovery unit uses the (B) process. (A) Partial combustion method (B) Shunt method (C) Direct oxidation method (D) SCOT method
When the hydrogen sulfide content in acidic gases ranges from 15% to 50%, sulfur recovery units employ the ((B) split-flow method)) process.
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