I was wondering if there are any experts from Maoming, Qilu, or Hainan refineries here; I have a question I’d like to ask
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I was wondering if there are any experts from Maoming, Qilu, or Hainan refineries here; I have a question I’d like to ask It seems that all the refineries mentioned above have residue hydrogenation units. As far as I know, the design purity of the fresh hydrogen used in these units is 99.9%, but I’m not aware of the current operating data – is the purity of the fresh hydrogen still 99.9% as designed? I would appreciate it if experts from these refineries could provide some answers.
Although 99.9% cannot be guaranteed. But it can also ensure over 99%.
Yes, over 99% is fine. . . Higher purity reduces the energy consumption of the hydrogen compressor. . . :lol
The hydrogen produced through hydrogen production certainly has a purity of over 99%, while the hydrogen generated as a by-product has a lower purity
If it doesn’t reach 99%, the hydrogen production is not up to standard, haha
I’m not sure if what was said above refers to the purity of the fresh hydrogen in the residue hydrodesulfurization unit?
The fresh hydrogen used for our residue hydrogenation and hydrocracking processes comes mainly from PSA-based hydrogen production; it is also obtained from reformation hydrogen and certain desulfurized dry gases, with the hydrogen purity generally exceeding 99%.
It mainly depends on the catalyst requirements. For the catalysts in our company’s residue hydrogenation unit, a purity of over 90% is required; currently, we are using hydrogen with a purity of 88% from the reforming unit, and operations proceed normally.