[Soda Ash Knowledge] Daily Question (38) 11/10/2009
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Please hide the replies; no scoring will be given in principle if they are not hidden. Specific hiding method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Posts that have been edited are not rated. (The question for this issue is taken from page 69 of \"Technical Worker Training Question Bank – Soda Ash Production Operators.\" An electronic version of this book is available for download in the soda ash information sharing area: http://bbs.hcbbs.com/thread-13140-1-2.html) Multiple-choice question: 7. What is used as the source of carbonation cleaning gas in the converter gas soda ash production process? A. Shift gas B. Compressed air C. Caustic soda production off-gas 8. To ensure the normal production of soda ash, the H2S content in the shift gas is required to be less than ( ) mg/m3. A、20 B、50 C、100 9、The NH3 content in the gas used for ammonia synthesis must be less than ( ) g/m3. A、 0.2 B、0.5 C、1. 0 10. The pressure of the shift gas used in ammonia synthesis should be controlled at () MPa. A、0.55～0.6 B、0.75～0.8 C、1.0～1.1
7, B8, B9, Bl10, A
Answer: 7, C 8, B 9, A 10, A 1# chen3jun
7. Use of (C) as the carbonation cleaning gas source in the transformed gas soda ash production process. 1 {) V6 x4 ^0 O. E/ a A: Reformate gas; B: Compressed air; 3 ~( H1 y6 s# `9 d& Y: Caustic soda production exhaust gas. 8. To ensure the proper production of soda ash, it is required that the H2S content in the reformate gas be less than (B) mg/m2. & R: U, g8 R, J+ g/ @. c A、20 B、50$ x, K! X; d. C C、100: p( }7 I1 S# N$ F 9. The requirement for the syngas used in ammonia synthesis is that the NH3 content be less than (A) g/m3. A. 0.29 J l# h& ^( _& |9 ~- a( P6 X B. 0.5 C. 1. 0! R' S* G9 F6 | s! A8 z 10. The pressure of the synthesis gas used in ammonia production should be controlled at (A) MPa. A、0.55～0.6 B、0.75～0.8 C、1.0～1.1
Question 2 of CBAA: I don’t understand the unit mg/m2