One Question per Day on Synthetic Ammonia (Series 30)

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This post was last edited by penghh1985 on 2016-3-10 17:23. 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 29, 146. (B-C-001) The characteristics of ammonia production from coal are ( ). (A) Long process (B) High investment (C) High costs (D) A, B, and C 147. (B-C-001) Most large ammonia plants that produce ammonia from coal use the ( ) method for production. (A) Steam conversion (B) Fixed-bed gasification (C) Fluidized-bed gasification (D) Pulsative oxidation 148. (B-C-001) Using ( ), it is possible to produce semi-water gas continuously from coal. (A) Pure O2 (B) Oxygen-enriched gas (C) Air (D) N2 149. (B-C-002) In the conversion of light oil to ammonia, ( ) catalysts require high performance. (A) Transformation (B) Conversion (C) Methanation (D) Synthesis 150. (B-C-002) In the partial oxidation of residue oil, the oxygen-to-oil ratio is approximately ( ). (A) 0.78 (B) 0.81 (C) 0.78～0.81 (D) 0.82～0.84 Answer: D B B A C The scoring starts at 3 points, with 1 point added for each correct answer. It should be specifically noted that respondents are required to hide their answers. If the answerer’s score is not hidden, it is halved. For methods to hide posts, see: http://bbs.hcbbs.com/thread-1551107-1-1.html