What is the difference between atmospheric and vacuum wax oils, and coker wax oils?
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This post was last edited by Green Lotus on 2018-6-20 at 10:57. Paraffin oils are divided into atmospheric and vacuum distillation paraffin oils as well as coking paraffin oils – what are the differences? What are the raw materials used to produce them? What other products can be made from them?
This post was last edited by Refiner on 2018-6-20 at 14:28. Coker wax oil contains more impurities such as sulfur and nitrogen, and its carbon residue content is also higher than that of atmospheric and vacuum distillation wax oil; there are also differences in their elemental composition. Atmospheric and vacuum wax oil are distilled directly from crude oil, while coker wax oil is produced by the thermal cracking of vacuum residue in a delayed coking unit. Atmospheric and vacuum wax oils, as well as coker wax oils, are generally mixed together and fed into wax oil hydrocracking units to produce naphtha for reforming units; they can also be used to produce light naphtha for ethylene cracking, as well as tail oil.
In simple terms, the coker wax oil consists of four components; it has a high proportion of aromatics, making it difficult to crack, and a higher proportion converts into diesel and sludge