Daily Question 2016.7.1 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (short answer question)
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Case of Cogeneration Project in 2013: The ammonia section of the SCR denitration system is equipped with a 100 m3 liquid ammonia storage tank with a capacity of 55 tons. Note: ① According to \"Identification of Major Hazardous Sources of Hazardous Chemicals\" (GB18218-2009), the critical amount for liquid ammonia is 10 tons. Question: Identify the major hazardous sources present in this project and explain the reasons. Answer: The liquid ammonia storage tank is a major hazard source. Reason: 55/10 > 5.5; the amount of liquid ammonia stored is greater than the critical threshold specified in the \"Identification of Major Hazard Sources for Hazardous Chemicals\" (GB18218-2009). Analysis: This question is a regular exam topic in case studies and is relatively simple
The liquid ammonia storage tank has a capacity of 55 tons, which exceeds the critical amount of 10 tons for liquid ammonia specified in the \"Identification of Major Hazard Sources for Hazardous Chemicals\" (GB18218-2009); therefore, it is considered a major hazard source. A register of major hazard sources must be established.
The liquid ammonia storage tank in this project is a major hazard source. The storage capacity of the liquid ammonia tank is 55 tons, which is greater than the critical amount for liquid ammonia specified in \"Identification of Major Hazard Sources for Hazardous Chemicals\" (GB18218-2009), namely 10 tons; therefore, it constitutes a major hazard source.
The ratio of the liquid ammonia inventory in the ammonia area to its critical amount, 55/10 > 1, indicates a major hazard source for hazardous chemicals
Liquid ammonia storage tanks are major hazard sources; 55/10 > 5.5
The liquid ammonia storage tank in this project is a major hazard source. The storage capacity of the liquid ammonia tank is 55 tons, which is greater than the critical amount for liquid ammonia specified in the \"Identification of Major Hazard Sources for Hazardous Chemicals\" (GB18218-2009), namely 10 tons; therefore, it constitutes a major hazard source.
Exceeding the critical amount constitutes a major hazard source