[Soda ash knowledge] Daily question (37) 2009.11.9

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Please hide the reply. If you do not hide it, you will not be graded in principle. Specific hiding methods: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Edited posts are not graded. (The title of this issue is taken from page 69 of "Technical Workers Job Training Question Bank - Soda Ash Production Operator". The electronic version of the book is available for download in the Soda Ash Information Sharing Area. http://bbs.hcbbs.com/thread-13140-1-2.html ) Multiple choice questions 1. The higher the partial pressure of carbon dioxide in the gas phase, the greater the driving force for carbonation to absorb carbon dioxide ( ). A. High B. Low C. Same 2. Synthetic ammonia requires that the carbon dioxide concentration in the return shift gas be lower than ( ). A. 0.2% B. 0.5% C. 1% 3. For some synthetic ammonia plants that make gas from coal, there is a problem of high ( ) content in the shift gas. A. Organic sulfur B. Inorganic sulfur C. Elemental sulfur