The document provides information about IOCL Noonmati Guwahati refinery including: 1. It describes the refinery's location, capacity, and major products which include LPG, gasoline, diesel, and petroleum coke. 2. It outlines some key mechanical equipment used in refineries like pumps, compressors, heat exchangers, valves, and bearings. 3. It provides an overview of some refinery units including the crude distillation unit to separate crude oil fractions, the INDMAX unit to produce light olefins and gasoline, and the planning section which manages refinery maintenance and operations.

1. IOCL NOONMATI GUWAHATI
VOCATIONAL TRAINING PRESENTATION
Presented By:
GAUTAM SHARMA
ID:ET13BT0175
Semester: VII
Dept. Mechanical Engineering

2. GUWAHATI REFINERY
 Guwahati Refinery was set up at Noonmati in Guwahati on January 1, 1962.
Guwahati Refinery is the first Public Sector refinery of India and belongs to
Indian Oil Corporation Limited.
 It has a capacity of 1.0 million metric tonnes per annum.
 Major Products of this refinery are:-
1. LPG
2. Motor Spirit (Petrol),
3.Aviation Turbine Fuel (ATF)
4.Kerosene
5.High Speed Diesel
6.Light Diesel Oil and
7.Raw Petroleum Coke.
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3. MECHANICAL EQUIPMENTS:
 MOST COMMONLY USED MECHANICAL
EQUIPMENTS ARE:-
 PUMP
 COMPRESSOR
 HEAT EXCHANGER
 VALVE
 BEARINGS
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4. PUMP
 Pump is a very common machine which is used to move the liquid from one
place to another by differential pressure.
 Pumps require energy to operate, mainly electrical energy and steam pressure.
 Pumps plays versatile role among the other mechanical equipment’s such as to
move different products, crude oil and water in refinery.
 It can handle all kind of liquid.
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5. CENTRIFUGAL PUMP
 The centrifugal pump is the most widely used process pump and accounts
for over 98% of all installation.
 It transports liquid by the conversion of rotational kinetic energy to the
hydrodynamic energy of fluid flow.
 These are universally used because they are low in first cost and
maintenance, Simple to operate, provide a Wide range of easily controlled
and suitable for clean.
 Types of centrifugal pump:-
 Axial flow pumps
 Radial flow pump
 Mixed flow pump
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6. COMPRESSOR & HEAT EXCHANGER
 Compressor:- A compressor is a mechanical device that increases the
pressure of a gas by reducing its volume.
 In refinery compressor are used to pump out product like LPG, steam and
other gases.
 Heat Exchanger:- A heat exchanger is a device that allows heat from a fluid
(a liquid or a gas) to pass to a second fluid (another liquid or gas) without the
two fluids having to mix together or come into direct contact. The media may
be separated by a solid wall to prevent mixing or they may be in direct
contact.
 The two most common kinds of heat exchanger are:
1. Shell and tube heat exchanger.
2. Plate or fin type heat exchanger.
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7. Cont..
Shell and tube heat exchanger and plate or fin type heat exchanger :-
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8. BEARING
 Machine element that constrains relative motion and reduces friction
between moving parts to only the desired motion.
 Design of the bearing may, provide for free linear movement of the
moving part or for free rotation around a fixed axis.
 Bearings are classified broadly according to the type of operation, the
motions allowed, or to the directions of the loads (forces) applied to the
parts.
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9. Valves
 It is a device that regulates, directs or controls the flow of a fluid.
 Can be operated manually or driven by changes in pressure, temperature or
flow.
 Valves which are used stated below:
a) Gate valve
b) Globe valve
c) Ball valve
d) Butterfly valve
(a) (b) (c) (d) 9

10. MAINTANENCE
Maintenance is a sum of activities which keep the machines in condition
that enable uninterrupted implementations of plans involving its use and
while in doing so optimize the maintenance cost.
 Maintenance Practice:
 Breakdown Maintenance Practice
 Preventive Maintenance Practice
 Breakdown Maintenance Practice: Any maintenance practice which
has been carried out in an unplanned, haphazard and unsystematic
manner can be termed as breakdown maintenance, it results in:
o High Maintenance Cost
o Unmanageable Work Load
o High Down Time Less
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11.  Preventive Maintenance Practice:
 Preventative maintenance is a sum of activities which have been carried out
in a programmed way with objectives.
 To prevent unexpected breakdown
 To slow down the deterioration of the equipment’s or system components.
 To discover the breakdown before it finally occurs and replace the
damageable parts generally termed as preventive maintenance.
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12. DEMINERALIZED WATER PLANT
 Provides water to the TPS for steam production.
 Raw water is usually hard and contains unwanted particles.
 Raw water is demineralized in this plant.
 Objectives of DM Plant
1. Remove hardness of water which causes scaling in boiler pipes which may
further lead to rupture at high temperature
2. Mineral removal (calcium, magnesium, carbonates, sulphates)
3. Overall prevention of boiler tube failure.
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13. THERMAL POWER STATION (TPS)
 A thermal power station is a power plant in which the prime mover is steam
driven.
 Water is heated into steam and spins a steam turbine which either drives an
electrical generator.
 After it passes through the turbine the steam is condensed in a condenser and
recycled to where it was heated. It mainly works on the cycle called Rankine
cycle.
Rankine cycle:
Rankine Cycle is a reversible cycle. The different processes involved in the
steam
turbine power plant are:
1. Constant pressure heat addition in the boiler
2. Adiabatic expansion of steam in the turbine
3. Constant pressure heat rejection in the condenser
4. Adiabatic compression of water in the pump
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15. CRUDE DISTILLATION UNIT (CDU)
 Mother unit of a refinery.
 It is used to separate the crude oils by distillation into fractions of the required
products according to their boiling points.
 The different outputs from CDU unit of Guwahati Refinery are LPG, Light gasoline
(LG), Heavy gasoline (HG), Kero-1, kero-2, Gas oil & Reduced Crude Oil (RCO
feed to DCU).
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16. INDMAX UNIT
 IndianOil R&D has developed a novel technology, INDMAX, to
produce high yield of light olefins and high octane gasoline from
various petroleum fractions.
 The technology is being globally licensed by M/s Lummus
Technology Inc., USA. INDMAX unit is designed by Lummus
employing proprietary efficient hardware components with basic
process design from IndianOil.
 INDMAX employs circulating fluidized bed Riser-Reactor-Stripper
configuration similar to conventional FCC technology along with
single stage full combustion Regenerator system.
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17. OIL MOVEMENT AND STORAGE DIVISION
[OM&S]
 Branch of production department.
 Cater to the storage and movement of crude oil and products along with provision of
generating and distributing steam, power, air and other utilities.
 Functions of OM &S:
1. Receipt, storage, accounting, preparation and supply of crude oil to DCU.
2. Blending of products and chemical dozing.
3. Dispatch of finished products.
4. Measurement of petroleum products – gauging and sampling.
5. Filling and dispatch of LPG in bulk dispatches in bullets mounted on trucks.
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18. PLANNING SECTION
 The planning section is the main centre as far as the mechanical part of the refinery is
concerned with from which the flow of information to and from the field on the activities
planned and executed respectively.
 The objectives of the planning are:
1. Optimum utilization of manpower.
2. Assessment of spares, inventory control level and procurement of maintenance spares.
3. Budget and budgetary control.
4. Development of record and reporting.
5. Development of standard work schedule and maintenance.
6. Shutdown plan execution and control along with the necessary reporting.

19. THANK YOU
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