One-on-one Q&A on C4 production processes (aromatization, butane/butene isomerization, alkylation, etherification)
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This post was last edited by sdwfsgyykai on 2017-11-20 08:16. The carbon tetra-compound deep processing industry has been growing steadily in recent years, with various production processes being widely adopted on a large scale, and these are utilized in everyday applications as well as in project construction and operational activities. I have been working in oil refining for 11 years, and in the advanced processing of C4 compounds for over 3 years. I have been involved in project construction, production management, as well as safety and environmental protection management; I am also responsible for some procurement tasks. I created this post in the hope that all senior experts and peers will actively participate in the discussions on the deep processing of C4! I also hope to contribute my modest efforts to create a communication platform for technical exchanges in the HaiChuan field! Note: Due to my work commitments, I am generally able to access the forum from 7:00 to 9:00 in the evening; I may be able to log in intermittently at other times as well. I hope all fellow users will actively participate and engage in lively discussions!
Do experts have a mixed C4 dehydrogenation process? How is this technology?
I’m truly sorry; I have no experience in this field. I have limited knowledge regarding mixed C4 dehydrogenation; I am somewhat familiar with isobutane dehydrogenation. My expertise mainly lies in the advanced processing of C4 compounds through processes such as aromatization, isomerization, alkylation, and etherification. I look forward to exchanging more ideas!
The topic of the 2012 National College Students’ Chemical Engineering Design Competition was the deep processing of C4 hydrocarbons. At that time, our main product was methyl methacrylate (MMA), while the by-product was methyl tert-butyl ether (MTBE). I was in my second year of university that year: lol
It’s quite similar to the actual application projects of Yantai Wanhua
It seems pretty impressive; they’ve been studying this since early in the morning
You’re using the word “research” in a rather overly fancy way. When it came to design, I really didn’t know where to start due to a lack of various technical knowledge; I could only force myself to work through it and piece things together. Yet, the engineering design concepts that emerged from that process did help me learn a great deal and gave me valuable insights.
Question: What is the performance of methanol+naphtha aromatization?
Current liquefied gas aromatization processes are mostly shut down due to the small price difference between liquefied gas and the price of aromatized oil. Around 2015, there was a wave of upgrades in this area; to the best of my knowledge, the following approaches exist: 1. Converting liquefied gas aromatization into naphtha aromatization, with most process manufacturers requiring catalyst replacement； 2. For the liquefied gas aromatization to methanol + naphtha process, most process suppliers require catalyst replacement ； 3. For the aromatization of liquefied gas to naphtha aromatics plus isomerization of light oils, new facilities are required. In the methanol+naphtha approach, this method is indeed in use today, with the amount of methanol added ranging from 20% to 30%. The choice of this approach depends on the price of methanol, as a large amount of water is generated during the reaction process. This method can significantly increase the octane number of aromatic oils; however, the levels of oxides and oxygen content increase as well, and it causes severe corrosion to the equipment