Introduction to Petroleum &
Petro - Chemical Products.
Description on Unit Process, Production & Business
Opportunities In India
CONTENTS
1.  The Black Gold
2.  About Hydrocarbon Industry
3.  A Guide of Refinery Process
4.  Table of various process with approximate cost & criticality
5.  Crude Distillation Unit
6.  Production of Gasoline (Petrol) from Heavy Naphtha
7.  Fluid Catalytic Cracking
8.  List of Refineries in India and their production capacities
9.  Procurement Methods adopted by Indian Refineries
10.  Major Refinery Equipment’s
- Part 1 of Presentation
THE BLACK GOLD
What	is	Crude	Oil	?	
•  An	unrefined	petroleum	product	composed	of	hydrocarbon	deposits	and	organic	
compounds.		
Origin	of	Hydrocarbons		
	
	
Types	of	Crude	Oil		
•  Sweet	Crude	(Low	H2S	&	CO2)	–	Most	preferable	for	producDon	of	gasoline.		
•  Sour	Crude	(High	H2S	&	CO2)	–	Crude	with	more	than	0.5%	sulfur			
Grades	of	Crude		
•  Brent(UK),	West	Texas	Intermediate(US),	Daqing	(China),	BCF-17(Venezuela),	
Maga(Mexico),	Bonny(Nigeria),	Dubai(UAE)			
Composi<on	
•  83	–	87%	Carbon	
•  11	-	15	%	Hydrogen	
•  1	–	6%	Sulfur	
AcDon	of	micro-organisms	
on	Decaying	Plants	&	
Animals	
FormaDon	of	
Hydrocarbons		High	Pressure	&	high	
Temperature	
Under	Earths	Surface
Graph Explaining the grades of
crude oil
API = (141.5/S) – 131.5
ABOUT HYDROCARBON INDUSTRY
Upstream, Midstream & Downstream Process
Hydrocarbon Industry – Up Stream Process
Petroleum Exploration
•  Explora<on	Techniques	
•  Geo	Physical	
•  Gravimetric	Method	
•  Magnetometric	Method	
•  Seismic	Survey	
•  Remote	Sensing	Method	
•  Geo	Chemical	
•  Chemical	analysis	of	surface	soil	
and	rocks	
•  Geo	Technical	
•  Mechanical	ProperDes	of	rocks	
and	surface	are	measured	
Petroleum Production
•  Oil	Extrac<on	&	Recovery	
•  Primary	recovery	
•  Once	the	complete	rig	is	set-up,	the	
underground	pressure	in	the	oil	
reservoir	is	sufficient	to	force	the	oil	
to	the	surface.	
•  Secondary	recovery	
•  Supply	of	external	energy	into	the	
reservoir	in	the	form	of	injecDng	
fluids	to	increase	reservoir	pressure,	
hence	increasing	the	natural	
reservoir	drive	with	an	arDficial	
drive.	(eg.	Water,	Natural	gas)	
•  Enhanced	recovery	
•  This	method	injects	steam	to	heat	
up	oil	the	reservoir	to	reduce	its	
viscosity	and	making	it	easier	to	
extract.
VARIOUS TYPES OF RIGS USED FOR PETROLEUM EXTRACTION
On shore Platforms & Off shore Platforms
Hydrocarbon Industry – Down Stream Process
Refining & Petrochemicals
•  Refining		
•  Petroleum	refining	processes	are	
the	chemical	engineering	
processes	to	transform	crude	oil	
into	useful	products	such	as	
Liquefied	Petroleum	Gas(LPG),	
Gasoline	(Petrol),	Kerosene,	Jet	
Fuel,	Diesel	Oil	&	fuel	oils.		
	
•  Petrochemicals		
•  Chemicals	obtained	directly	from	
cracking(pyrolysis),	or	indirectly	
from	chemical	processing	of	
petroleum	oil	or	natural	gas.		
•  Few	examples,	plasDcs,	rubbers,	
fibres,	paints,	solvents	&	
detergents.
Marketing & Distribution
•  Marke<ng	
•  MarkeDng	is	the	final	step	in	the	
chain	that	delivers	useful	
petroleum	products	to	end-user	
customers.		
•  Driving	factors:	
•  Volume	
•  Market	Share	
•  Margin	
	
•  Distribu<on	
•  DistribuDon	lines	of	oil	&	gas	
must	be	managed	with	high	levels	
of	consistency	and	safety.	
•  DistribuDon	is	done	via,	
•  Pipe	lines	
•  Cryogenic	tanks	
•  On-Site	systems
Ministry of Petroleum & Natural Gas
Industry Bodies
Petroleum Planning &
Analysis Cell
Centre for High
Technology Petro Fed Petroleum Conservation
& Research Association
Up Stream Process
Exploration &
Production
ONGC OIL
Private
companies
like Cairn, RIL
etc.,
Down Stream Process
Refining &
Marketing
HPCL BPCL IOCL RIL, etc.,
Distribution
GAIL India RIL
Hydrocarbon Industry – India
Src:	Ministry	of	Petroleum	&	Natural	Gas
A GUIDE OF
REFINERY
PROCESS
Crude	Oil	
Storage	Tank	
Desalter	
HeaDng	
(CDU)	Crude	DisDllaDon	Unit	/	ADU	
VDU	(Vacuum	
DisDllaDon	Unit)	
Gas	
Processing	
NHTU	
NHTU	
ATF	-	HDT	
DHDT	
VGO-HDT	
Hydrocracker	
DCU	
Bitumen	Blowing	
ARU	
Merox		
SRU	 Sulphur	
LPG	(Propane	
&	Butane)	
Naptha	
Gasolline	
Jet	Fuel	/	
Kerosene	
Diesel	Fuel	
ISOM	
CCR	
ATF	
MEROX	
FCCU	
AlkylaDon	Unit	
Poly	Unit	
Needle	Coke	Unit	
Propylene	
PRU	
Light	Gas	
Light		
Naphtha	
Heavy	
Naphtha	
Kerosene	
Jet	Fuel	
Diesel	Oil	
Gas	Oil	
Desalted		
Crude	
Reduced	Coke	
Fuel	Gas	
H2S	
Refinery	Fuel	/	Fuel	Gas	
H2	H2	
H2S	
Diesel	
Vacuum	
	Residuel	
Heavy	Vacuum		Gas	Oil	
C3/C4	
Propane	
Butane	
Diesel	
Iso-Butane	
Gasoline	
Light		
Vacuum		
Gas	Oil	
Premier	Coke	
Coker	Naphtha	to	CCR	
Coker	Gas	oil	to	FCCU	
Petroleum	Coke	
Bitumen
A GUIDE OF
REFINERY
PROCESS
Crude	Oil	
Storage	Tank	
Desalter	
HeaDng	
(CDU)	Crude	DisDllaDon	Unit	/	ADU	
VDU	(Vacuum	
DisDllaDon	Unit)	
Gas	
Processing	
NHTU	
NHTU	
ATF	-	HDT	
DHDT	
VGO-HDT	
Hydrocracker	
DCU	
Bitumen	Blowing	
ARU	
Merox		
SRU	 Sulphur	
LPG	(Propane	
&	Butane)	
Naptha	
Gasolline	
Jet	Fuel	/	
Kerosene	
Diesel	Fuel	
ISOM	
CCR	
ATF	
MEROX	
FCCU	
AlkylaDon	Unit	
Poly	Unit	
Needle	Coke	Unit	
Propylene	
PRU	
Light	Gas	
Light		
Naphtha	
Heavy	
Naphtha	
Kerosene	
Jet	Fuel	
Diesel	Oil	
Gas	Oil	
Desalted		
Crude	
Reduced	Coke	
Fuel	Gas	
H2S	
Refinery	Fuel	/	Fuel	Gas	
H2	H2	
H2S	
Diesel	
Vacuum	
	Residuel	
Heavy	Vacuum		Gas	Oil	
C3/C4	
Propane	
Butane	
Diesel	
Iso-Butane	
Gasoline	
Light		
Vacuum		
Gas	Oil	
Premier	Coke	
Coker	Naphtha	to	CCR	
Coker	Gas	oil	to	FCCU	
Petroleum	Coke	
Bitumen	
v	
v	
v	
v	
v	
v
VARIOUS UNIT PROCESS IN REFINERY
Table of Various Unit Process with Approximate cost & criticality
Table of Various Unit Process with Approximate cost & criticality
S.No.	 Unit Name	 Approximate Cost	 Criticality 	
Major Units	
1	 CDU – Crude Distillation Unit	
2	 VDU – Vacuum Distillation Unit	
Hydro-treating Process	
3	 ATF HTD - Aviation Turbine Fuel Hydrotreater 	
4	 DHDT – Diesel Hydrotreating	
5	 NHT – Naphtha Hydro Treater	
6	 VGO HDT – Vacuum Gas Hydrotreater 	
Cracking Process 	
7	 FCCU - Fluid Catalalytic Cracking Unit	
8	 Steam Cracking Unit	
9	 Hydrocracking Unit 	
Reforming Process	
10	 CCR – Continuous Catalytic Reformer
Table of Various Unit Process with Approximate cost & criticality
S.No.	 Unit Name	 Approximate Cost	 Criticality 	
Isomerization Process	
11	 Light Naphtha Isomerization Unit	
De-Sulfurization / Merox Process & Sulfur Recovery Process	
12	 ATF Merox – Aviation Turbine Fuel Merox 	
13	 GMU – Gasoline Merox Unit 	
14	 Extraction and removal of mercaptans from
LPG	
15	 SRU – Sulfur Recovery Unit 	
16	 SWS – Sour Water Stripper 	
Coking Process	
17	 DCU – Delayed Coker Unit 	
18	 Needle Coker Unit	
19	 Fluidic Coking Unit	
20	 Flexi Coking Unit
Table of Various Unit Process with Approximate cost & criticality
S.No.	 Unit Name	 Approximate Cost	 Criticality 	
Other Units	
21	 HF Alkylation Unit	
22	 Vib Breaker Unit	
23	 Polymerization Unit	
24	 ARU - Amine Recovery Unit	
25	 AGS – Air Generation System	
26	 AGU – Acid Generation Unit 	
27	 De-Salination / De-Mineralization Unit	
28	 ETP – Effluent Treatment Plant 	
29	 Hydrogen Manufacturing Unit
CRUDE DISTILLATION UNIT
Atmospheric Distillation Unit & Vacuum Distillation Unit
Atmospheric Distillation Unit (ADU) –
Process Flow Diagram
Pipe	SDll	Furnace	
Side	Stripper
De-Salting Unit
Preheated	
Crude	Oil	
DM	Water	
CausDc	
SoluDon	
Power	
T.F	
Dosing		
Pump	
FIC	
Crude	oil		
Feed	Pump	
pHC	
DPC	
Salt	-	Water	
Crude	Oil	 Electrode	Plates	
Oil	–	Water	
Interface	
TT	 PT	
FIC	
Crude	Booster	Pump	
Salt	and	Water	
to	Drain	
LC	
•  FIC	-	Flow	Indicated	
Control	
•  TT	–	Temperature	
Transmijer	
•  PT	–	Pressure	
Transmijer	
•  DPC	–	Dual	Zone	
Pressure	Controller	
•  LC	–	Level	Controller
Vacuum Distillation Unit (VDU) –
Process Flow Diagram
PRODCUTION	OF	GASOLINE	(PETROL)	FROM	HEAVY	NAPHTHA	
Naphtha Hydro Treatment Unit & Reforming Unit
NaphthaHydroTreater - ProcessFlowDiagram
Raw	
Naphtha	
Storage	
Hydrogen
Separator
Feed
Pump
Furnace
Cooler
Make up
Hydrogen
Recycle
Compressor
Stripper
Gases to
fuel system
or sulfur
recovery
unit
Desulfurised
naphtha to
storage
Reboiling
Furnace
Reactor
Heavy Naphtha
Reformer–
Process Flow Diagram
Desulfurised	
Naphtha	
Storage	
Hydrogen
Separator
Feed	
Pump	
Furnace	
Cooler	
Hydrogen	
to	storage	
Recycle	Compressor	
Debutaniser	
Reactor	
Reactor	
Furnace	
Furnace	
Reactor	
Gases	to	fuel	
System	
Reformate	
to	Storage
FLUIDISED CATALYTIC CRACKING (FCC)
Conversion of VGO(Vacuum Gas Oil) into Gasoline Intermediates using side by side FCC configuration
FLUE	
GAS	
ELECTROSTATIC	
PRECIPITATOR	
CATALYST	
FINES	
SEPARATOR	
CATALYST	
FINES		
CO	
BOILER		
FLUE	
GAS	
STEAM	
AIR	
CONDENSATE	
COMBUSTION	AIR	
REGENERATOR	
FLUE	GAS	
FLUE	GAS	
REACTOR	
535	Deg	C		
	1.72		barg	
CONDENSER	
38			
0.56		barg	
REFLUX	
OFF	GAS	
PHENOLIC	
SOUR	WATER	
REFLUX	
DRUM	
FEED	STOCK	315-430		
TOTAL	FEED	
SIDECUT	
STRIPPER	
CRACKED	NAPHTHA	
STEAM	
FUEL	OIL	
FUEL	OIL	
SLURRY	
SETTLER	
SLURRY	
OIL	
715	Deg	C			
2.41		barg	
DISTILLATION	COLUMN	
STEAM	
REACTION	
PRODUCT	GAS	
FLUIDIZED CATALYTIC CRACKING
Fluid Catalytic Cracking
List of Refineries in India and their Production Capacities
Sl.No	 Sector	
Refinery	Name	
	
Loca<on	
	
Investment	
Cost	
(	Rs.	In	
crores)	
Commissioned	
On	
	
Produc<on	
Capacity	
(MMTPA)	
Present	
Produc<on	
Capacity	
(MMTPA)	
1	 IOCL	 GuwahaD	Refinery		 Assam	 17.29	 1st	January	
1962	
0.75	 1	
2	 IOCL	 Barauni	Refinery	 Bihar	 49.4	 July	1964	 3.3	 6	
3	 IOCL	 Koyali	Refinery	 Gujarat	 26	 October	1965	 2	 13.7	
4	 IOCL	 Haldia	Refinery		 West	
Bengal	
January	1975	 2.5	 7.5	
5	 IOCL	 Mathura	Refinery	 Ujar	
Pradesh	
253.92	 January	1982	 6	 8	
6	 IOCL	 Digboi	Refinery	 Assam	 1901/October	
1981	
0.5	 0.65	
7	 IOCL	 Panipat	Refinery	 Haryana	 3868	 1998	 6	 15	
8	 IOCL	 Bongaigaon	Refinery	
(BRPL)	
Assam	 50	 20th		February	
1974	
1	 2.35
List of Refineries in India and their Production Capacities
Sl.No	 Sector	
Refinery	Name	
	
Loca<on	
	
Investment	
Cost	
(	Rs.	In	
crores)	
Commissioned	
On	
	
Produc<on	
Capacity	
(MMTPA)	
Present	
Produc<on	
Capacity	
(MMTPA)	
9	 IOCL	 Paradip	Refinery	 Orissa	 34,555	 February	7,	
2016	
15	
10	 HPCL	 Mumbai	Refinery	 Maharash
tra	
1954	 1.25	 6.5	
11	 HPCL	 Visakh	Refinery	 Andhra	
Pradesh	
1957	 0.675	 8.3	
12	 BPCL	 Mumbai	Refinery	 Maharash
tra	
1955	 2.2	 12	
13	 BPCL	 Kochi	Refinery	 Kerala	 27th	April	1963	 2.5	 15.5	
14	 CPCL	(IOCL
+	NIOC)	
Manali	Refinery	 Tamil	
Nadu	
43	 1965	 2.5	 10.5	
15	 CPCL	 Cauvery	Basin	
Refinery	
Nagapao
nam,	TN	
1993	 0.5	 1	
16	 NRL	 Numaligarh	Refinery	 Assam	 October	2000	 3
List of Refineries in India and their Production Capacities
Sl.No	 Sector	
Refinery	Name	
	
Loca<on	
	
Investment	
Cost	
(	Rs.	In	
crores)	
Commissioned	
On	
	
Produc<on	
Capacity	
(MMTPA)	
Present	
Produc<on	
Capacity	
(MMTPA)	
17	 MRPL	
(ONGC)	
Mangalore	Refinery	 Karnataka	 March	1996	 3.69	 15	
18	 ONGC	 TaDpaka	Refinery	 Andhra	
Pradesh	
27	 September		
2001	
0.066	 0.132	
19	 Private	 Jamnagar	Refinery		
(RIL	–	DTA)	
Gujarat	 33	
20	 Private	 Jamnagar	Refinery	
(RIL	–	SEZ)	
Gujarat	 37	
21	 Private	 Essar	Oil	Limited	 Vadinar,	
Gujarat	
November	
2006	
10.5	 20	
22	 BORL	
(BPCL	+	
OOCL)	
Bina	Refinery	 Madhya	
Pradesh		
12,200	 May,	2011	 6	
23	 HMEL	
(HPCL	+	
Mijal)	
Guru	Gobind	Singh	
Refinery	
Bathinda,	
Punjab		
April,	2012	 9
PROCUREMENT METHODS ADOPTED BY INDIAN REFINERIES
Conventional Route & EPC Route
ConstructionProcurementEngineering
Procurement	method	
adopted	by	Indian	
Refineries	
Owner		
(IOCL,	BPCL,	HPCL,	CPCL,	NRL,	
BORL,	BRPL,	RIL,	ESSAR)	
AppoinDng	process	licensor	&	
consultant	for	FEED	Study	
(Front	End	Engineering	Design)		
Approval	from	Board/
Government	for	project	
implicaDons		
Method	-	1:	CONVENTIONAL	ROUTE	 Method	-	2:	LSTK	/	EPC	ROUTE	
AppoinDng	“Process	Licenser”	(By	Owner)	
AppoinDng	“EPCM”	Consultant	(By	Owner)		
Process	Design	&	Sizing	of	‘Units”	by	process	
licenser	
Detail	Design	of	units	&	sizing	of	“Individual	
Equipment's”	by	EPCM	consultant	
PreparaDon	of	MR,	SpecificaDons,	Data	
Sheets	&	Drawings	for	“Individual	
Equipment”	by	EPCM	
InvitaDon	for	tenders	for	“Individual	
Equipment's”	as	per	MR’s	by	EPCM	
Submission	of	Techno-Commercial	Bids	by	
“Bidders	(Manufacturers)”	
Technical	EvaluaDon	by	EPCM		
Commercial	EvaluaDon	&	RecommendaDon	
by	EPCM		
Approval	Of	Bidder	and	order	release	for	
“Individual	Equipment's”	by	owner.	All	financial	
commitments	to	bidders	is	by	owner	
Bidders	post	order	acDviDes	like	drawings,	
procurement,	manufacturing	&	E&C	will	be	
monitored	by	EPCM	&	Owner	
CompleDon	of	project	&	commissioning	of	
plant	is	monitored	by	EPCM		
AppoinDng	“Process	Licenser”	(By	Owner)	
AppoinDng	“PMC”	Consultant	(By	Owner)		
Process	design	basis	of	“Units”	by	process	
licenser	
PreparaDon	of	project	specificaDons	&	minimum	
design	&	quality	requirements	by	PMC	
InvitaDon	for	tenders	for	LSTK	(EPC)	bidding	
for	“UNITS”	by	PMC		
Submission	of	Techno-Commercial	bids	by	
LSTK	contractors.		
Technical	evaluaDon	by	PMC	&	Process	
licensor		
Commercial	evaluaDon	and	recommendaDon	
by	PMC		
Approval	of	LSTK	contractor	and	order	release	
for	‘Units”	by	owner.	All	financial	commitments	
to	LSTK	contractors	are	by	owner	
LSTK	will	develop	process	design,	P&ID’s	&	
equipment	data	sheets	&	MR’s	for	“Individual	
Equipment's”.	May	appoint	DEC	&	inspecDon	
agency,	if	required.		
InvitaDon	for	tenders	for	“Individual	
Equipment's”	as	per	MR’s	by	LSTK	
Submission	of	Techno-Commercial	bids	by	
“Bidders	(Manufacturers)”	
Technical	&	Commercial	evaluaDon	by	DEC	&	
LSTK		
Approval	of	bidder	by	owner	/	PMC	&	order	
release	by	LSTK	contractor.	All	financial	
commitments	to	bidders	are	by	LSTK	
contractor.	
Bidders	post	order	acDviDes	like	drawings,	
procurement,	manufacturing	and	E	&	C	will	
be	monitored	by	LSTK	contractor	as	well	as	
EPCM	&	owner.		
CompleDon	of	project	&	commissioning	of	plant	
is	done	by	LSTK	contractor	&	approved	by	PMC	/	
Licensor	/	Owner
Major Refinery Equipment’s
•  Pressure vessels
•  Heat exchangers
•  Shell & Tube Heat Exchangers
•  Plate & Frame Heat exchangers
•  Air cooled heat exchanger
•  Double Pipe exchanger
•  Process Vessels
•  Drums
•  Gravity Separators
•  Column
•  Reactor
•  Storage Tanks
•  Fixed-roof tanks
•  External floating roof tanks
•  Internal floating roof tanks
•  Domed external floating roof tanks
•  Horizontal tanks
•  Pressure tanks
•  Variable vapor space tanks
•  LNG (Liquefied Natural Gas) tanks
•  Fired heaters / Furnace   
•  Piping system & Valves
•  Pumps
•  Centrifugal Pumps
•  Positive Displacement pumps
•  Reciprocating pumps
•  Rotary Pumps
•  Compressors
•  Reciprocating
•  Rotary Screw
•  Rotary Centrifugal
•  Cooling Towers
Heat Exchangers
Shell & Tube Heat Exchanger Plate & Frame Heat Exchanger
Heat Exchangers
Air Cooled Heat Exchanger Double Pipe Heat Exchanger
Process Vessels
Drums Gravity Separators
Process Vessels
Drums Drums
Process Vessels
Separators Separtors
Process Vessels
Column Reactor
Storage Tanks
Fixed Rook Tank External Floating roof tank
Storage Tanks
Internal Floating roof tank Doomed External floating roof tank
Storage Tanks
Horizontal tank Pressure Tank
Storage Tanks
Variable vapor space tank LNG Tanks
Fired Heaters / Furnace
Cooling Towers
Reference
1.  The	Black	Gold	
•  Fundamentals	of	petroleum	&	Petrochemical	Engg	–	Ujam	Ray	Chaudhuri	
•  hjps://en.wikipedia.org/wiki/Benchmark_(crude_oil)	
•  hjp://www.markeDndex.com.au/crude-oil	
2.  About	Hydrocarbon	Industry	
•  Fundamentals	of	petroleum	&	Petrochemical	Engg	–	Ujam	Ray	Chaudhuri	
3.  A	Guide	of	Refinery	Process	
•  Chemical	Engineering	Process	–	An	AICHE	PublicaDons	
•  Essar	presentaDon		
4.  Table	of	various	process	with	approximate	cost	&	criDcality	
5.  Crude	DisDllaDon	Unit	
•  Fundamentals	of	petroleum	&	Petrochemical	Engg	–	Ujam	Ray	Chaudhuri	
6.  ProducDon	of	Gasoline	(Petrol)	from	Heavy	Naphtha	
•  Fundamentals	of	petroleum	&	Petrochemical	Engg	–	Ujam	Ray	Chaudhuri	
•  Chemical	Engineering	Process	–	An	AICHE	PublicaDons	
7.  Fluid	CatalyDc	Cracking	
•  hjps://en.wikipedia.org/wiki/Fluid_catalyDc_cracking	
•  Chemical	Engineering	Process	–	An	AICHE	PublicaDons	
8.  List	of	Refineries	in	India	and	their	producDon	capaciDes	
•  Ministry	of	Petroleum	&	Natural	Gas	India

Petroleum Intro-Rev 4