TOPIC :CRUDE DISTILLATION UNIT-2
MOBHERA VARUN RAJENDRABHAI
190280105031
CHEMICAL ENGINEERING

INDEX
 Company Profile
 List of Raw Materials/Products
 Production Capacity
 P&I Diagram
 Process Flow Diagram
 Chemical Reactions Involved
 Unit Operations & Processes Involved

Company Profile
 India has approximately 250 MMTPA of refining capacity
making it the 2nd largest in Asia.
 Over 60% of crude docks in the Gulf of Kutch, Gujarat
making it one of the most strategic locations.
 Inside the Gulf of Kutch, Vadinar, a small coastal town
located in Devbhoomi Dwarka district is home to one of
the most complex refineries in the world, the cornerstone
of existence for Nayara Energy.
 Nayara Energy's Vadinar refinery started commercial
production in May 2008 and is today India's second largest,
single-site refinery. It is one of the safest, reliable and
efficient refineries in India and is striving to become one
of the top 5 refining complexes in the world.

List of Raw Materials/Products
 Nayara Energy produces a wide range of raw
materials and products, including crude oil, natural
gas, petroleum products, chemicals, and
petrochemicals. The company also produces a range
of specialty products, such as lubricants, solvents,
and waxes.
 Nayara Energy also produces a range of value-added
products, such as jet fuel, bitumen, and asphalt, for
use in the construction and transportation sectors.

CRUDE
OIL
LPG
AVIATION
GASOLINE
JET
FUEL
KEROSENE
DIESEL
LUBRICANTS

Production Capacity
Primary Processing Units
1.Crude Distillation Unit(CDU)
Capacity: 18MMTPA
2.Vacuum Distillation Unit(VDU)
Conversion Units
1.Fluidized Catalytic Cracking Unit(FCCU)
Capacity: 3.7MMTPA
2.Catalytic Reformer(CCR)
Capacity: 0.9MMTPA
3.Isomerization unit(ISOM)
Capacity: 0.7MMTPA
4.Delayed Coking Unit(DCU)
Capacity: 6MMTPA

Treating Units
1. Naphtha Hydrotreater(NHT)
Capacity: 1.5MMTPA
2. Diesel Hydro Treating Unit(DHDT)
Capacity: 3.8MMTPA
3. Kerosene Treating Unit(KMU)
Capacity: 0.63MMTPA
4. Gasoline Treating Unit(GTU)
Capacity: 0.58MMTPA
5. LPG Treating Unit(LMU)
Capacity: 0.96MMTPA
6. Sulphur Recovery Unit(SRU)
Capacity: 670TPD
7. Vacuum Gas Oil Hydrotreating Unit(VGOHDT)
Capacity: 6.2MMTPA
8. Diesel Hydro-desulfurization Unit(DHDS)
Capacity: 5MMTPA
9. Hydrogen Manufacturing Unit(HMU)
Capacity: 130KNm3/hr

P&I Diagram
CRUDE
MANGLA
PRE HEAT 1 DESALTER 1,2 PRE HEAT 2
CRUDE
HEATER 1
FUEL OIL
FUEL GAS
ATM.
COLUMN
AR
ATM. REFLUX
DIESEL
STRIPPER
NAPTHA
DHDT
DHDS
BLENDING
STORAGE
FCCU
STORAGE

ATMOSPHERIC
RESIDUE
VACUUME
HEATER
FUEL OIL
FUEL GAS
VACUUME
COLUMN
VACUUM
DIESEL
HVGO
VR
DCU
FCCU

Process Flow Diagram
 A process flow diagram is a graphical representation of the process flow of a
system. It is used to illustrate the flow of materials, energy, and information
between the various components of a system.
 Nayara Energy uses process flow diagrams to visualize the flow of materials,
energy, and information in its operations. The diagrams are used to identify
potential areas of improvement, and to optimize the efficiency of the system.

Chemical Reactions Involved
 Nayara Energy's operations involve a variety of chemical reactions. These
reactions include the conversion of crude oil into petroleum products, the
conversion of natural gas into chemicals and petrochemicals, and the
conversion of petroleum products into specialty products.
 The company uses a variety of catalysts, such as hydrodesulfurization
catalysts, to optimize the efficiency of its chemical reactions. The company
also uses a variety of technologies, such as hydrocracking and fluid catalytic
cracking, to optimize the quality of its products.

Unit Operations & Processes Involved
 Nayara Energy's operations involve a variety of unit operations and processes.
These operations and processes include refining, distillation, fractionation,
hydrodesulfurization, hydrocracking, and fluid catalytic cracking.
 The company uses a variety of technologies, such as advanced process control
and predictive analytics, to optimize the efficiency of its operations and
processes. The company also uses a variety of materials, such as catalysts, to
optimize the quality of its products.

Temperature
DegOc
Pressure
Kg/cm2(g)
Crude oil 60-70 30-32
Off gas(CDU-1) <0 0.7
Naphtha to NHT 40 10
Naphtha to storage 40 7
Diesel to storage 60 5
Diesel to DHDT 95-125 8
Diesel to DHDS 95-125 6
Diesel to Blending 60 5
Heavy vacuum Gas oil to storage 80 5
Heavy vacuum Gas oil to VGOHT 165 11
Heavy vacuum Gas oil to FCCU 165 5
Vacuum residue to storage 180 8
Vacuum residue to Coker 200 8
Atmospheric residue to FCCU 185 5
Atmospheric residue to storage 90-95 5
Plant fuel oil 160-190 7
Low sulphur fuel oil 80 7
Sour water 40 5

references
 https://en.wikipedia.org/wiki/Nayara_Energy
 https://www.nayaraenergy.com/