Upload
iampiyushsahu
View
222
Download
0
Embed Size (px)
Citation preview
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
1/20
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
2/20
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
3/20
Contd. Thermal Power Station (T.P.S)
Demineralization Plant
Boiler
Steam Turbine
Gas Turbine Generator
Cooling Towers
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
4/20
UNIT PROFILE Indian Oil Corporation Limited (Indian Oil) is the largest commercial
enterprise in India with a sales turnover of Rs.150, 677 crores and profit of
Rs.4, 891 crores for the fiscal year 2004.
Indian Oil is Indiasnumber one company in Fortunesprestigious listing
of the worlds 500 largest corporations, ranked 170 based on fiscal 2004
performance. It is also the 18th largest petroleum company in the world and
adjudged number one in petroleum trading among the 15 national oil
companies in the Asia-Pacific region.
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
5/20
Contd. Mathura Refinery,commissioned in 1982, current rated capacity of
8.0 MMTPA crude processing, is meeting the product demand of
Northwest region of the country including the National Capital
Delhi. The Refinery processes low sulphur crude from BombayHigh, imported low sulphur crude from Nigeria, and high sulphur
crude from Middle East Countries. In the original refinery
configuration, there was one primary Atmospheric Vacuum unit
coupled with Vis-breaker Unit, Fluidized Catalytic Cracking Unit,
Bitumen unit and Sulphur Recovery unit as secondary units.
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
6/20
ENERGY CONSUMPTION Mathura Refinery consumes various types of fuels viz. Natural gas, R-LNG,
refinery fuel gas and low Sulphur internal fuel oil (IFO) in furnaces /
boilers. Natural gas, which is about 50% of total fuel consumed at MR issupplied by M/s GAIL whereas all others fuels are generated in the refinery
itself. The IFO is fired as alternate fuel in old furnaces only.
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
7/20
PRODUCTS Liquefied Petroleum Gasfor domestic use
Naphthafor fertilizer as feed
Aviation Turbine FuelFor Civil and Defense aviation purposes
Superior Kerosene OilFor domestic purposes
High Speed Diesel Oil - For Transportation
Furnace Oil and Heavy Petroleum Stock
Petroleum
Light Diesel OilFor agro equipments
BitumenFor road paving PropyleneFor high polymers
SulphurFor chemical industries
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
8/20
UNITS OLD UNIT-
Old unit is further divided into various subunits:
AVU(Atmospheric Vacuum Unit):
The ADU (Atmospheric Distillation Unit) separates most of the lighter endproducts such as gas, gasoline, naphtha, kerosene, and gas oil from the
crude oil. The bottoms of the ADU are then sent to the VDU (Vacuum
Distillation Unit).
Crude oil is preheated by the bottoms feed exchanger, further preheated and
partially vaporized in the feed furnace and passed into the atmospheric towe This tower contains 20 fractionation trays, is equipped with one top pump
around, an overhead reflux system, and three side strippers (for naphtha,
kerosene, and gas oil products).
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
9/20
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
10/20
CCRU(Controlled Catalytic Regeneration Unit):
Catalytic reforming is a chemical process used to convert petroleum refinery
naphthas, typically having low octane ratings, into high-octane liquid
products called reformates which are components of high-octane gasoline(also known as petrol).
FCC(Fluidized Catalytic Cracking):
It is the most important conversion process used in petroleumrefineries. It is widely used to convert the high-boiling, high-molecular
weight hydrocarbon fractions of petroleum crude oils to more valuablegasoline, olefin gases and other products.
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
11/20
NEW UNITS The New Unit includes:
OHCU(Once Through Hydrocracker Unit):
DHDT DHDS
HGU(Hydrogen Generation Unit)
NHGU(New Hydrogen Generation Unit)
PRIME-G (This unit is recently installed in Mathura refinery plant toprovide Euro4 products. It removes Sulphur from 300 ppm to 50 ppm
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
12/20
MECHANICAL WORKSHOP
In mechanical workshop we saw the following sections
Machine Shop
Pump and Valve Section
Gaskets and Grease
Machine Shop
In machine section we saw the various types of machines on whichoperations like threading, turning, facing, boring, drilling, etc. were being
performed by using these machines. In machine shop all the lathes werecentre lathes. Various machines in workshop were
Machines Name Quantity
Lathe 8
Boring Machine 1
Shaper 1
Milling 1
Drill 3
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
13/20
Pumps
The function of pump is to convert mechanical energy in to hydraulic
energy. So they are used to transfer fluid from one place to another. In
Mathura Refinery mainly two types of pumps are used
Centrifugal Pump
Reciprocating Pump
Centrifugal Pumps are of two types
Vertical
Horizontal
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
14/20
Centrifugal Pumps -Centrifugal Pumps are used where higher head and low
discharge is required. Centrifugal pump works on the principle of centrifugal
force acting on the liquid. Head (pressure) is controlled is controlled by RPM,
impeller diameter and flow rate.
Multistage Pumps - If a larger head is required more no. of impellersare to be fitted in series so that the discharge from first impeller isguided to the inlet of second impeller. This is repeated with thirdimpeller and so on until the required head is reached. Each impeller willincrease the pressure by the same amount; a pump of this type is called amultistage pump.
A typical boiler feed may have six to eight stages
All the impellers are keyed to the same shaft and usually all the impellersand diffusers of the one pump are identical.
This has the advantage of reducing the labour in manufacturing andstocking spares of maintenance.
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
15/20
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
16/20
Oil Seal Oil seal is used to prevent the leakage of lube oil. Bearing Two types of bearings are used Axial Bearing Which take the load along the axis of the shaft.
Radial Bearing Which take the load acting perpendicular to theload of the shaft.
Suction Pipe Its one end connected to outlet of pump andother end delivers the water at required height.
Generally following types of faults are found out after the certainworking hours of pump
Bearing Damage Damage of mechanical seal Damage of oil seal
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
17/20
THERMAL POWER PLANT Mathura Refinery has its own captive thermal power station supplied and
erected by M/s BHEL (Bharat Heavy Electricals Limited) to meet the
electricity requirements of Mathura Refinery as well as the township.
There are three Boilers, three Steam Turbine Generators (S.T.G.) as wellas three Gas Turbine Generators (G.T.G.) and three Heat RecoverySteam Generators (H.R.S.G.) set as T.P.S. Normally one Steam TurbineGenerator and three Gas Turbine Generator are in service with oneboiler out of three to provide steam to them. Rest of the remaining unitstays on standby. Each boiler is capable of generating steam at a rate of150 TPH (Tonnes Per Hour) at a pressure of 64 kg/cm and temperatureof 450. Each STG is capable of generating a electric power of 12.5 MW
with regulated steam of 0 to 105 TPH to meet
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
18/20
the process requirement in the refinery. Each GTG is capable ofgenerating an electric power of 20 MW. Nowadays not only the
boilers but the HRGS also used to generate the steam with the helpof Gas turbine exhaust as heat source and supplementary firing (Ifneeded).
Objectives of the Thermal Power Station
Uninterrupted power, steam, feed water & DM water to units.
Optimization of resources & efficiency improvement. Ensure reliability and quality of services.
Safe practice of operations.
Environmental safety.
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
19/20
COOLING TOWER The steam in the LP Side of the Turbine is collected in the condenser
and has to be condensed and is re-used as a feed in the boiler. Thecooling media used for exchange of heat is water and to economize onthe use of water, water is re-circulated through a cooling tower.
There are many types of cooling towers, the more common being theone with the induced draft cross- flow method. The scheme ofoperation is that hot water from the condenser is sprayed across thelatticed work in a rectangular cell and an induced draft fan is mountedat top of each Call. The draft fan induces a draft current from the celltowards the atmosphere and in the process carried away the water
vapors. The cooled water collects in the sump and is again pumped intothe condenser to cool the steam in the condenser.
These types of cooling towers are more efficient, economic in operationand occupy minimum space.
8/10/2019 Indian Oil Corporation Limited Mathura Ppt.pptx Ashu 11
20/20
THANKYOU