Several issues concerning shell gasification technology
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It is well known that shell gasification technology requires substantial investment; could any expert in this field provide a specific figure? It is said that the lack of a backup furnace in chemical applications is a fatal flaw of this technology, but installing one comes at a huge cost. And where is the immaturity of its technology manifesting itself at present? Furthermore, the adaptability of different coal types is not as wide as Shell claims.
The performance guarantees they provide apply only to a specific design value, rather than to an entire range. Even slight changes in the coal quality can lead to the failure of these guarantees.
Try to answer: 1. The purchase cost of a Shell furnace is likely to be 8–10 times that of the currently popular HT_L furnaces, and if a feeding system for the furnace is included, it is about 4–5 times that of HT_L furnaces. 2. The lack of a backup furnace is indeed a significant drawback in chemical applications; it is a fatal flaw when the product is industrial hydrogen or when the product chain is long. Therefore, the issue of long-term operation of such furnaces receives considerable attention. 3. The so-called immaturity lies in the fact that China’s current equipment manufacturing capabilities are not sufficient to meet the high requirements of these furnaces. 4. The adaptability to different types of coal is fairly good; at least for now, no one can surpass this level. The core issue regarding adaptability is the problem of scaling in SGC furnaces; P