【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 065

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【Daily Question 2019】Hydrogen production and hydrogenation section – Question No. 065: What are the factors that affect the thermal efficiency of the reactor feed heater? Multiple-choice questions: A. The higher the flue gas temperature of the furnace, the higher the thermal efficiency. B. The greater the heat loss due to radiation from the furnace walls, the lower the thermal efficiency. C. The greater the losses resulting from incomplete chemical combustion, the lower the thermal efficiency. D. The greater the losses resulting from incomplete mechanical combustion, the lower the thermal efficiency. BCD (Unless otherwise specified, each question is based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below