| 摘要 |
<p>The invention relates to a process and an installation for processing black oil, with a view to producing petroleum coke and distillates. According to the invention, the process consists in stripping a starting material flow consisting of vacuum residues or of a mixture of vacuum residues and catalytically cracked gasoil, the stripped flow being then divided into two flows which are heated in the radiation chamber of a furnace, at a temperature of 480...500A C, after which they are joined together in the starting point and the resulting flow is upwardly circulated in one coking chamber of a first group of two coking chambers, wherefrom the hydrocarbons as vapours resulting from the thermal coking reactions are gathered, introduced and downwardly circulated in one coking chamber of another group of two coking chambers and, after heating said chamber, the supply thereof with hydrocarbons as vapours is cut out and said hydrocarbons are supplied to the other coking chamber of the first group, further on, the flow of starting material already heated in the radiation chamber is divided into the two initial flows, one of them being introduced into the heated chamber of the second group of coking chambers, while the resulting hydrocarbons as vapour are led and downwardly circulated through the other coking chamber of the second group of coking chambers up to the heating of said chamber, and after filling the first chambers of the two groups of coking chambers with coke, the two flows of starting material are separately led to the the other two heated coking chambers of the groups, the hydrocarbons as vapours, partially condensed during the heating of each chamber, being discharged and subjected to phase separation.</p> |
