Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Chemical Technology

Chemical Engineering : Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

The document Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev is a part of the Chemical Engineering Course Chemical Technology.
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4.2 Technical questions:

1. How to remember the refinery process flow sheet in a simple way?

Ans: Well, visualize the refinery into four blocks namely the separation block, the treating block, the reactive transformation block and the rest.
The separation block consists of CDU, VDU, naphtha splitters, C4, C3 and other separators
The treating block consists of all hydrotreaters and gas treating unit
The reactive transformation block consists of thermal cracker (termed as cracking), alkylator, isomerizer and reformer
The last block consists of other units such as blending units, kerosene splitter, n-butane splitter.
This way the refinery can be easily remembered after thoroughly understanding the functional role of each process.

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(a) Crude distillation Unit

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(b)  Vacuum distillation unit

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(c)Thermal Cracker

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(d) Naphtha HDS

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(e) LGO Hydrotreater

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(f) HGO Hydrotreater

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(g) C4 Separator

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(h) Kerosene Splitter

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(i)FCC Unit

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(j)C3 Separator

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(k) C2 Separator Unit

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(m) Gas treating Unit

 

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(n) Naphtha Splitter

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(o) Catalytic Reformer

 

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(p) n-Butane Splitter

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(q) Isomerization Unit

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(r)Alkylation Unit

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(s) LVGO Splitter

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(t) LPG Pool Unit

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(u) Gasoline Pool

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(v) Gasoil Pool

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

(w) Fuel Oil Pool

 

Figure 4.1: Summary of prominent sub-process units in a typical petroleum refinery complex

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Table 4.1: Summary of streams and their functional role as presented in Figures 1 and 2.

Overview of Refinery Processes (Part - 2) Chemical Engineering Notes | EduRev

Figure 4.2: Overall refinery process block diagram (Dotted lines are for H2 stream).

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