Let’s discuss the progress in C3 and C4 dehydrogenation as well as mixed dehydrogenation, along with their levels of industrialization and application
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Affected by the development of shale gas, liquefied gas will face the following issues: 1. C4 dehydrogenation units, such as isobutane dehydrogenation units. What technologies are currently available? Apart from ABB LUMMUS and UOP, what other industrial applications exist? 2. What are the industrial applications of C3 dehydrogenation units, such as propane dehydrogenation units? 80% conversion rate? , yield 45%? What are the processing costs respectively? 1400 yuan per ton? 3. Is there any current technology for the mixed dehydrogenation of C3 and C4 alkanes? Are there any industrialized and applied devices?
So far, the only companies I have come across are UOP and LUMMUS. The UOP process is similar to continuous reforming, while LUMMUS uses parallel reactors and employs numerical control programs to simulate continuous production. The energy consumption of the LUMMUS CATOFIN process is approximately 480 kg of standard oil per ton of feed. The one-way conversion rate for C3 is around 55%, while that for C4 is around 48%. The advantage of UOP is continuous production, but the one-pass conversion rate is relatively low at 35-40%. Hope this helps you
There are many mixed dehydrogenation units; those that use UOP technology are used by Jingbo Petrochemical for the mixed dehydrogenation of C3 and C4 compounds
I would like to ask: by mixed dehydration, does it mean that it can be pure propane, pure butane, or a mixture of propane and butane?
Mixed dehydrogenation is practically no longer in use, and the isobutane dehydrogenation process there also relies on MTBE. . . Propane dehydrogenation is the best option, as it requires fewer components in the setup
In UOP’s mixed dehydrogenation process, the C3 and C4 hydrocarbons are combined and fed into the reactor together, whereas in LUmmus’ mixed dehydrogenation process, the C3 and C4 hydrocarbons enter separate reactors first, are then combined, and finally separated
These days, there are increasingly more companies such as Jingbo Petrochemical and Dongming Petrochemical that use hybrid C3 and C4 dehydrogenation technologies; let’s exchange ideas together, after all, it’s all foreign technology
I work at Yanchang Petroleum, and I’m involved in mixed dehydrogenation using UOP technologies
The key question is whether secondary dehydrogenation of butane will result in butadiene. The catalyst has an effect, right?