How should the full hydrogenation process, often mentioned in refining plans, be understood?
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I would like to ask my colleagues from Sichuan: When reviewing the processing plans for various integrated refining and chemical projects lately, I have come across the term \"full hydrogenation process flow\" on several occasions. For example, it is mentioned as a \"full hydrogenation process flow that involves atmospheric and vacuum distillation, wax oil hydrocracking, residue hydrodesulfurization, and heavy oil catalytic cracking.\" What exactly does this full hydrogenation process flow mean? Does it refer to the fact that all fractions obtained through atmospheric and vacuum distillation are subjected to hydrogenation or cracking, or does it emphasize the cleanliness of this process from an environmental perspective, or is there some other meaning? Additionally, I would like to ask: if a delayed coking decarburization process is used in the processing plan, but the feed to the delayed coking unit is heavy oil obtained from the hydrogenation of residue oil, can it still be referred to as a fully hydrogenated process? I would appreciate your advice as well.
The full hydrogen process refers primarily to the use of hydrogenation technology in the processing of heavy oil, thereby ensuring that all products leaving the plant have been hydrogenated.
If hydroprocessing of residue and catalytic cracking of heavy oil are taken into account, at most some of the heavy catalytically cracked slurry can be fed into coking; if it’s not necessary, I guess coking won’t be considered As for the full hydrogenation process, aside from the atmospheric and vacuum distillation units, the finished products or semi-finished products produced by the other units are all treated through hydrogenation processes
If a coking unit is present in the overall processing process, but the coking gas, diesel, and wax oil are further processed through hydrogenation units, can the entire processing scheme be referred to as a fully hydrogenated scheme?
What I would like to clarify regarding this issue is the understanding of the term \"full hydrogenation process\"; as for whether to install a coking unit, it needs to be decided based on the properties of the crude oil, the desired product profile, and the overall processing flow.
If part of the vacuum residue is sent to a coking unit for treatment, but all the subsequent products from that coking unit undergo hydrogenation (except for petroleum coke), can it still be called a fully hydrogenated process?
Of course it counts, and moreover, most coking units these days are combined with hydrogenation units to form integrated complexes that are inseparable from each other
In principle, it cannot be considered a fully hydrogen-based process; only those plants that use heavy oil through the hydrogenation route can be regarded as clean, fully hydrogen-based refineries
Full hydrogenation means that the main products sold are all hydrogenated and meet environmental requirements. If there is residue hydrogenation along with a delayed coking unit, it is generally the case that there is large-scale hydrogenation and small-scale coking, which provides greater flexibility.
Wang Wen, dear experts: How is olefins produced in a full hydrogenation process? Is catalytic cracking also involved in such a process?
It depends on what you need; Hengli doesn’t have a catalyst