【Q&A Question 208】2018.08.02
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【Q&A Question 208】August 02, 2018: Briefly describe how to handle fluctuations in the reactor bed temperature When the temperature of the reactor bed fluctuates, the cause should be identified based on the actual production conditions and appropriate action taken: ① Stabilize the outlet temperature of the reaction feed heater ； ② Stabilize the properties of crude oil and enhance dehydration ； ③ Analyze the purity of new hydrogen and recycled hydrogen; when the purity is low, increase the amount of waste hydrogen emitted ； ④ Adjust the amount of cold hydrogen ； ⑤ The reaction temperature is adjusted according to the activity of the catalyst to meet the requirements of the product. (Unless otherwise specified, all questions and answers are 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
When the temperature of the reactor bed fluctuates, the cause should be identified based on actual production conditions and appropriate actions taken: ① Stabilize the outlet temperature of the reaction feed heater； ②Stabilize the properties of crude oil and enhance dehydration ； ③Analyze the purity of new hydrogen and recycled hydrogen; when the purity is low, increase the amount of waste hydrogen emitted ； ④Adjust the amount of cold hydrogen ； ⑤The reaction temperature is adjusted according to the activity of the catalyst to meet the requirements of the product.
When the temperature of the reactor bed fluctuates, the cause should be identified based on actual production conditions and appropriate actions taken: ① Stabilize the outlet temperature of the reaction feed heater； ②Stabilize the properties of crude oil and enhance dehydration ； ③Analyze the purity of new hydrogen and recycled hydrogen; when the purity is low, increase the amount of waste hydrogen emitted ； ④Adjust the amount of cold hydrogen ； ⑤The reaction temperature is adjusted according to the activity of the catalyst to meet the requirements of the product.
1. Stabilize the furnace outlet temperature； 2. Contact the dispatcher to find out the reason for the change in raw materials, and enhance dehydration ； 3. Observe the bed pressure drop and the quality of the produced oil ； 4. Adjust the cold hydrogen flow rate. 5. Adjust the stable processing capacity.
When the temperature of the reactor bed fluctuates, the cause should be identified based on the actual production conditions in order to take appropriate action: ① Stabilize the outlet temperature of the reaction feed heater； ②Stabilize the properties of crude oil and enhance dehydration ； ③Analyze the purity of new hydrogen and recycled hydrogen; when the purity is low, increase the amount of waste hydrogen emitted ； ④Adjust the amount of cold hydrogen ； ⑤The reaction temperature is adjusted according to the activity of the catalyst to meet the requirements of the product.
1. Ensure stability of raw materials. 2. Ensure stability of the purity of recycled hydrogen. 3. Level of the buffer tank in the recycled hydrogen compressor. 4. Whether the operating conditions of the recycled hydrogen compressor are stable
What are the factors that affect changes in the reactor bed temperature and what are the solutions? Reasons: 1. Changes in the reactor inlet temperature. 2. Changes in the properties of the feedstock or presence of water in it. 3. Changes in catalyst activity. 4. Changes in the amount of cold hydrogen used. 5. Changes in the reaction space velocity. Actions to take: 1. Stabilize the outlet temperature of the furnace. 2. Contact the dispatch team to find out the reason for the changes in the raw materials and enhance dehydration processes. 3. Monitor the pressure drop across the bed layer as well as the quality of the oil produced. 4. Adjust the flow rate of cold hydrogen. 5. Adjust the amount of material processed for stabilization purposes.
Answer: When the temperature of the reactor bed fluctuates, the cause should be identified based on the actual production conditions and appropriate action taken: ① Stabilize the outlet temperature of the reaction feed heater； ② Stabilize the properties of crude oil and enhance dehydration ； ③ Analyze the purity of new hydrogen and recycled hydrogen; when the purity is low, increase the amount of waste hydrogen emitted ； ④ Adjust the amount of cold hydrogen ； ⑤ The reaction temperature is adjusted according to the activity of the catalyst to meet the requirements of the product.
① Stabilize the outlet temperature of the reaction feed heater； ② Stabilize the properties of crude oil and enhance dehydration ； ③ Analyze the purity of new hydrogen and recycled hydrogen; when the purity is low, increase the amount of waste hydrogen emitted ； ④ Adjust the amount of cold hydrogen ； ⑤ The reaction temperature is adjusted according to the activity of the catalyst to meet the requirements of the product.
When the temperature of the reactor bed fluctuates, it is necessary to identify the cause based on the actual production conditions and take appropriate action: 1. Stabilize the temperature at the outlet of the reaction feed heater; 2. Stabilize the properties of the crude oil and enhance dehydration； 3. Analyze the purity of recycled hydrogen and fresh hydrogen; increase the amount of waste hydrogen emitted when the purity is low. 4. Adjust the amount of cold hydrogen. 5. Adjust the reaction temperature according to the catalyst’s activity.