IOCL NOONMATI GUWAHATI

VOCATIONAL TRAINING PRESENTATION

Presented By:

GAUTAM SHARMA ID:ET13BT0175

Semester: VII Dept. Mechanical Engineering

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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MECHANICAL EQUIPMENTS: MOST COMMONLY USED MECHANICAL

EQUIPMENTS ARE:- PUMP COMPRESSOR HEAT EXCHANGER VALVE BEARINGS

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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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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

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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Cont..

Shell and tube heat exchanger and plate or fin type heat exchanger :-

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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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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)

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MAINTANENCEMaintenance 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 Costo Unmanageable Work Loado High Down Time Less

 

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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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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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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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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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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.

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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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.

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THANK YOU