【Daily Question】Deep Processing 20160509 Multiple Choice: The yield of ethylene is ( )
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Ethylene is produced by the cracking of ethane; the amount of ethane fed into the reactor is 5000 kg/h, the amount of unreacted ethane in the cracking gas is 1000 kg/h, and the amount of ethylene obtained is 3400 kg/h. The yield of ethylene is ( ). A. 54.66% B. 91.08% C. 81.99% D. 82.99% Answer: B, the yield is 91.08%
Why, after checking so much information, is the answer supposed to be 72.88%?
Ethylene is produced by the cracking of ethane; the amount of ethane fed into the reactor is 5000 kg/h, the amount of unreacted ethane in the cracking gas is 1000 kg/h, and the amount of ethylene obtained is 3400 kg/h. The yield of ethylene is (C). A. 54.66% B. 91.08% C. 81.99% D. 82.99%
Ethylene is produced by the cracking of ethane; the amount of ethane fed into the reactor is 5000 kg/h, the amount of unreacted ethane in the cracking gas is 1000 kg/h, and the amount of ethylene obtained is 3400 kg/h. The yield of ethylene is (B). A. 54.66% B. 91.08% C. 81.99% D. 82.99%