【Daily Question】August 13, 2015
Thread Content
The inappropriate time for cycling the exhaust gas absorption tower is ( ). A. Before acidic gas is introduced B. After the Claus process is operating normally； C. After pre-sulfurization of the catalyst D. When modifying the Claus off-gas hydrogenation reactor
The inappropriate time for cycling the exhaust gas absorption tower is (a) A. Before acidic gas is introduced B. After the Claus process is operating normally； C. After pre-sulfurization of the catalyst D. When modifying the Claus off-gas hydrogenation reactor
The inappropriate time recommended for cycling in the exhaust gas absorption tower is (C. after catalyst presulfurization)
The inappropriate time suggested for circulating in the exhaust gas absorption tower is (B. after the Claus process is operating normally)
This question seems a bit “convoluted,” doesn’t it? Incorrect? Establishing an amine solution circulation before introducing acidic gas might be a bit premature, but there isn’t much harm in doing it earlier ； After Klaus resumes normal operations? It’s not too late at this point ； When the exhaust enters the hydrogenation reactor? If pre-vulcanization has been carried out using acidic gases, it’s probably a bit too late now ； If using Claus flue gas sulfidation, it’s not too late. After the catalyst is pre-sulfurized, it’s definitely too late. Choose C
The inappropriate recommended cycle time for the exhaust gas absorption tower is (B) – it might be a bit late after normal operation has begun
The inappropriate time recommended for cycling in the exhaust gas absorption tower is (C. after catalyst presulfurization)
B,--------------------
After B. Klaus resumes normal operation, after B. Klaus starts working normally
The inappropriate time recommended for cycling in the exhaust gas absorption tower is (C. after catalyst presulfurization)
The inappropriate time for cycling the exhaust gas absorption tower is (C) A. before acidic gas is introduced B. after the Claus process is operating normally； C. After pre-sulfurization of the catalyst D. When modifying the Claus off-gas hydrogenation reactor