Vocational Training_ Akhil

8/8/2019 Vocational Training_ Akhil

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VOCATIONAL TRAININGPRESENTATION

ONIOP & STORAGE

AT

GAIL(INDIA )LTD.

PRESENTED BY-

AKHIL MOHAN MISHRA

ME (4th YEAR)

0702940015


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CONTENTS

Introduction of GAIL

IOP &S

DESCRIPTION OF IOP PLANT

DESCRIPTION OF POWER PLANT UTILITY BOILER


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Introduction of GAIL

GAIL, Indias principal gas transmission and marketing company , was set

Government of India in August 1984 to create gas sector infrastructure for

sustained development of the natural gas sector in the country.

GAIL (India) Ltd. at Pata, Distt. Auraiya, U. P. It is based on Natural Gas asfeedstock from GAILs HBJ pipeline, which has been set up in accordance

with GAILs mission to maximize the value addition from each fraction of

Natural Gas.

The Plant consists of four major units i.e. GPU, GCU, HDPE and LLDPE Unit.

Current capacity of the cracker plant is 300,000 tones per annum ofEthylene.


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TECHNOLOGY

Technology for the Gas Cracker unit has been licensed by Stone and

Web star, USA. Technology for the HDPE unit has been licensed by

Mitsui of Japan and Nova Chemicals, Canada for swing plant of

HDPE & LLDPE unit. Ethane, a constituent of Natural Gas is

converted into ethylene as its main product in the Gas Cracker Unitbased upon latest technology from USA .

PRODUCTS

GAIL is the major supplier of HDPE & LLDPE with the back-up of two

separate technologies. Some of the products are used, are Injection

Molding, Woven Sacks, Pipe & Fittings, Roto Molding, HM film, IM

Crates, Luggage, Blow Molding, HM Blow Molding etc.


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I

OP&S [I

NTEGRATED OFF SI

TE PLANTS AND STORAGES ]

RAW WATER TREATMENT PLANT

COOLING TOWER OPERATION AND C.W. MANAGEMENT

POWER PLANT


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RAW WATER TREATMENT PLANT

COOLING WATER SYSTEM

SERVICE WATER SYSTEM

DRINKING WATER SYSTEM

FIRE WATER SYSTEM

MISC. WATER SYSTEM

SOURCES OF RAW WATER ARE :-

WATER FROM CANAL

WATER FROM BOREWELL


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RAW WATER RECEIPT AND STORAGE

RAW CANAL WATER IS RECEIVED THROUGH CHANNEL AT A RATE OF 500

1000 M3/HR AND STORED IN RW RESERVOIRS .

TREATMENT IN R.W. TREATMENT PLANT

PRECHLORINATION

COAGULATION WITH ALUM

GRAVITY SAND FILTRATION


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COOLING WATER SYSTEM

COOLING WATER SYSTEM CONSISTS OF 3 INDEPENDENT COOLING TOWER.

COOLING TOWER 1

SUPPLIES WATER TO GPU, C2/C3 & GCU, CRYOGENIC STORAGE AREA ANDUTILITY SYSTEM .

COOLING TOWER 2

SUPPLIES WATER TO LLDPE, HDPE (SWING), HDPE (SLURRY) AND BUTENE I.

COOLING TOWER - 3

SUPPLIES WATER TO LPG PLANT.


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COOLING WATER TREATMENT

TREATMENT OF PH CONTROL.

TREATMENT FOR PREVENTION OF CORROSION.

TREATMENT FOR PREVENTION OF BIOFOULING.

BLOWDOWN FOR CONTROLLING CONCENTRATION OF DISSOLVED SOLIDS.

REMOVAL OF SUSPENDED SOLIDS .


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DESCRIPTION OF POWER PLANT UTILITY BOILER

The Steam Generated from all these boilers is utilized for production of

Electrical Power.

2 Nos. of Turbo Generators having Generating Capacity of 15.5 MW(Extraction

type) & 25.6 MW(Condensing type) .

The very high pressure steam (102 Kg/Cm2 (g) ) produced from all the 3 boilers .


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UTILITY BOILERS

IN THIS PLANT WE USE VERTICAL TYPE BOILER .

There are 3 nos. of utility boilers present in UPPC.

2 boilers run at a time and one boiler act as a standby for them .

FUEL: RICH GAS ,LEAN GAS.


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BOILER ACCESSORIES

ECONOMISER

The purpose of the economizer is to preheat the boiler feed

water before it is introduced into the steam drum, and to recoversome of the heat from the fuel gases leaving the boiler.

SUPER HEATER

THE PURPOSE OF SUPER HEATER IS TO SUPER HEAT THE STEAM.


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DESUPER HEATER

The purpose of the economizer is to preheat the boiler feed water before it is

introduced into the steam drum, and to recover some of the heat from the fuel

gases leaving the boiler.

BOILER MOUNTINGS

EMERGENCY STOP VALVE

CONTROL VALVE

OVER SPEED TRIP

EMERGENCY TRIPPING DEVICE


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POWER GENERATION THROUGH STGs

Presently the Maximum requirement of Electrical power for the complex

is around 32 3 MW.

This demand of 32 3 MW of power requirement in met by 2 SteamTurbo Generators .

Power Generated by these Generators is at 11 KV. It is further stepped up

to 33 KV through transformers which are synchronized with the 33 KV

grids.


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THANK YOU

Vocational Training_ Akhil

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