One Question per Day on Synthetic Ammonia (Series 39)
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This post was last edited by penghh1985 on 2016-3-12 08:59. I. Multiple-choice questions (each question has 4 options, of which only 1 is correct; fill in the correct option in the brackets). Continuing from Series 38: 191. As the space velocity in the ammonia synthesis tower increases, the production capacity of the tower ( ). A. Increase B. Decrease C. Remain unchanged D. Irrelevant. 192. The active component of medium-temperature iron-chromium catalysts is ( ). A. Fe2O3 B. Fe3O4 C. Fe D. FeO. 193. In the low-temperature methanol process for carbon removal, what is the method used to regenerate the carbon removal liquid? A. Pressure reduction and stripping B. Pressure reduction and heating C. Stripping and heating D. None of the above. 194. The active component of semi-water gas is ( ). A. H2 and CH4 B. H2 and N2 C. H2 and CO2 D. H2 and CO 195. In the batch process for producing semi-water gas, the role of the （ ） stage is to increase the furnace temperature. A. Top blowing gas supply B. Air blowing C. Bottom blowing gas supply D. Air cleaning Answer: A, B, B, D, B. Scoring: 3 points as the minimum score; 1 point is added for each correct answer.
Answer: A B B D B
191. As the space velocity in the ammonia synthesis tower increases, the production capacity of the tower (A). A. Increase B. Decrease C. Remain unchanged D. Irrelevant. 192. The active component of medium-temperature iron-chromium catalysts is (B). A. Fe2O3 B. Fe3O4 C. Fe D. FeO. 193. In the low-temperature methanol process for carbon removal, the method used to regenerate the carbon removal liquid is (B). A. Pressure reduction and stripping B. Pressure reduction and heating C. Stripping and heating D. None of the above. 194. The active component of semi-water gas is (D). A. H2 and CH4 B. H2 and N2 C. H2 and CO2 D. H2 and CO 195. When producing semi-water gas using the batch process, the role of stage (B) is to increase the furnace temperature. A. Upper blowing gas supply B. Blowing air C. Lower blowing gas supply D. Air cleaning