C2 hydrogenation catalyst realizes industrial application

As of press time, the carbon-two hydrogenation catalyst (PEC-21) independently developed by the China Petroleum and Petrochemical Research Institute has been in continuous operation for one month in Lanzhou Petrochemical’s 460,000 tons/year ethylene first stage reactor, marking the first commercialization of the catalyst.
Application
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? Continuous monitoring data shows that the PEC-21 catalyst runs smoothly, the reactor bed temperature distribution is good, the outlet acetylene content is qualified, and the overall performance of the catalyst is excellent
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? Lanzhou Petrochemical's 460,000 tons/year ethylene plant has the characteristics of a wide range of cracked gas components and high butadiene content.
The butadiene content has reached more than 10 times that of similar domestic plants, and the requirements for catalysts are strict
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In the last operating cycle, the imported catalyst used in the first stage of the reactor was rapidly coked and deactivated during operation, which could not meet the long-term stable operation requirements of the device
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? China Petroleum and Petrochemical Research Institute has provided technical services for Lanzhou Petrochemical for a long time
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At the end of 2018, the Lanzhou Chemical Research Center of the Institute invited technicians from the Lanzhou Petrochemical Ethylene Plant to Daqing Petrochemical and Sichuan Petrochemical to learn about the application of PEC-21 catalysts in the Institute
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After comparing the benefits, cycle time, performance characteristics and other aspects with the imported agent, Lanzhou Petrochemical decided to use PEC-21 catalyst in the first stage reactor of the new cycle and required the delivery before May 2019
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? The researchers of Lanzhou Chemical Research Center optimized the catalyst formula according to the special working conditions of Lanzhou Petrochemical, arranged the Refinery and Chemical Institute to model and calculate the separation system of Lanzhou Petrochemical, provided the raw material optimization plan of the C2 hydrogenation unit, and were carrying out in-depth and detailed technology After the exchange, the application plan of the catalyst was determined
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? The C2 hydrogenation team fully implements the catalyst formulation optimization plan, production plan, filling plan, and start-up plan
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In the catalyst production stage, the team members pay close attention to each production link, strictly supervise the process, and strictly control the production quality, which guarantees the high-quality and timely supply of PEC-21 catalyst
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? On June 17, the Lanzhou Petrochemical C2 hydrogenation unit started construction.
In view of the disadvantages of low CO content and low airspeed during the start-up process, the C2 hydrogenation team adjusted the start-up plan in time and participated in the whole process to ensure that the PEC-21 catalyst was once Drive successfully
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? "The transformation and replacement of the C2 hydrogenation reactor by the localization of the catalyst has resulted in lower catalyst purchase costs, better selection performance, and higher conversion efficiency, realizing cost reduction and efficiency enhancement of the ethylene plant
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" Lanzhou Petrochemical responded to PEC-21 The application of the catalyst was highly appraised
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? In the next step, the C2 hydrogenation team will track the operation of the catalyst throughout the process and provide timely technical services to ensure the long-term stable operation of the Lanzhou Petrochemical C2 hydrogenation plant
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