2 replies to this topic

[franchescamarie]

Is there a way to calculate the actual naphtha being produced by a heavy coker gasoil hydrotreating? What are the other parameters needed to do this? I have distillation data of the feed.

[nwoseemma]

The actual naphtha product depends on the density of the feed and the chosen conditions of the hydrotreater. You can find some correlations in literature or assume a basis.

[P.K.Rao]

In the hydrotreater, sulfur is replaced by hydrogen. Sulfur compounds have higher boiling points. When they are converted to compounds freed  from sulfur and replaced by hydrogen, the converted compounds will have lower boiling points. If such compounds fall in the naphtha boiling range, they constitute naphtha. So if you know the quantity of such sulfur compounds in the feed, you can get an idea on the production of naphtha.

 

Secondly, when coker gas oil (which contains unsaturated hydrocarbons) is treated with hydrogen, the unsaturated hydrocarbons are converted to saturated hydrocarbons which have lower boiling points than unsaturated compounds. If the coker gas oil is analyzed for such compounds, an idea can be obtained on the naphtha production.

Edited by P.K.Rao, 18 June 2015 - 07:27 AM.