Basics of oil refinng
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Transcript of Basics of oil refinng
Refinery Basics • An Overview
• Oil-Gas Companies in India
• Refinery Flowchart
• Other refinery units
• Crude Oil components
• What is done in refining
• Physical and process Hazards
Thanks to
• John Kulluk Ph.D.
• Torrance Fire Department
• &
• Robert Distaso PE – 714/573-6253
• Orange County Fire Authority
An overview…
• As countries develop, industry, rapid
urbanization, and higher living standards
drive up energy use, most often of oil.
• Thriving economies such as India are
quickly becoming large oil consumers.
India’s oil imports are expected to more
than triple from 2005 levels by 2020, rising
to 5 million barrels per day.
• For decades, the Indian government
largely controlled the petroleum industry.
• Petroleum exploration and production
(upstream activities) were left to the two
nationalized companies Oil and Natural
Gas Corporation (ONGC) and Oil India
Ltd., while refining, distribution and
marketing (downstream activities) were
conducted by the Indian Oil, Bharat
Petroleum and Hindustan Petroleum
companies.
• World’s fifth-largest energy consumer.
• Coal still dominates (57 percent).
• Oil accounts for 28 percent and natural gas
supplies 8 percent of India’s energy
consumption.
• India is the world’s sixth-largest oil consumer
and imports three-quarters of its oil from
overseas (mostly from the Middle East).
Therefore, India itself will probably remain the
sole buyer of the country’s oil and gas.
Positioning India
• India is a leading exporter of refined petroleum products in
the world, while it imports crude.
• India has around 6000 Kms of product pipelines along with
over 34,600 Government of India (GOI) owned retail outlets.
• The marketable products of oil refining are Gasoline or
Petrol, Kerosene, Diesel, Fuel Oil, Asphalt, Paraffin Wax,
Lubricating Oil, Liquefied Petroleum Gas (LPG) etc.
Oil & gas companies India
Public Sector Undertakings (PSU's):
• ONGC - Oil & Natural Gas Corp (exploration and production)
• OIL - Oil India Limited (exploration & production)
• IOC - Indian Oil Corporation (refining & marketing)
• BPCL - Bharat Petroleum Corporation Ltd (refining and
marketing)
• HPCL - Hindustan Petroleum (refining & marketing)
• GSPC - Gujarat State Petroleum Corp
Private Oil & Gas companies in India:
• RIL - Reliance Industries Limited (Indian Oil & gas company)
• ESSAR (Indian Oil & Gas company)
• Cairns Energy India (Scottish)
• British Gas energy
• Nikko Resources (Canadian)
• Chevron Oil Limited
• Shell Oil
• BP
An achievement that deserves mention here is that five of the Indian oil & gas companies are listed in Global Fortune 500.
Reliance Petroleum
Ltd.(RPL) • 1991, Reliance industries set up a new
subsidiary, Reliance Refineries Private Ltd.
The subsidiary later changed its name to
Reliance Petroleum Limited.
• In 1993 launched a public offering, which
at that time was India's largest ever IPO.
• In 1997 Reliance announced a plan to
build one of the world's largest and most
modern petroleum refining complexes in
Jamnagar, Gujarat.
Reliance Petroleum Ltd.(RPL)
• Turnover achieved for the
quarter ended 30th June 2010
was 61,007 crores (US$ 13.1
billion), an increase of 88.1%
over the corresponding period
of the previous year.
• Increase in volume accounted
for 48.4% growth in revenue
and higher prices accounted for
39.7% growth in revenue.
• Exports were higher by 103.5%
at 32,849 crores (US$ 7.1
billion) as against ` 16,145
crores in the corresponding
period of the previous year.
What is Crude Oil?
• Mixture of organic
carbon chain
molecules
• Impurities include
sulfur and nitrogen
compounds
• Some metals and
salts too
Refining Means. . .
1. To reduce to a pure state, to remove
impurities
2. To improve or perfect
What will happen in Refining?
Separate crude into fractions
Convert low octane components to higher octane
components
Convert the very heavy stuff to heavy oils
Convert heavy oils to gasoline, diesel, jet fuel
Remove sulfur/nitrogen through reaction
Blend intermediate streams together to meet product
specifications
Components such as . . .
• Straight-Chain
Hydrocarbons
• Olefins
• Cyclic H/C
• Aromatics
(Benzene, toluene,
xylenes)
• Mercaptans
• Hydrogen Sulfide
(H2S)
• Greases
• Propane
• LPG
Other Hazardous Materials
• Sulfur
• Hydrofluoric Acid (HF)
• Sulfuric Acid (H2SO4)
• Ammonia (NH3)
• Sodium Hypochlorite
• Radioactive Materials
• Chlorine
• Amines
• MEK
• Sulfur Dioxide (SO2)
• Heavy Metal Catalysts
• Sour Water
• Caustic (fresh/spent)
• Alcohol
• Asbestos
What Goes on at a Refinery. . .?
• Separation of components by distillation, e.g.:
Atmospheric
Vacuum
Hydrotreating (uses excess hydrogen)
• Breaking apart molecules to make smaller ones, e.g.:
catalytic cracking
hydrocracking
• Joining molecules to make bigger ones, e.g.:
Reforming - alkylation that lengthens the hydrocarbon chain
Reforming - cyclic that generates hydrogen
Refinery Process Flow Chart
Dis
tilling
Flasher
Visbreaker
CCU
Alky
Sp
litter
Hydrotreating
Hydrotreating
Isom
Reformer
Gas Plant
Sulfur
Fuel Gas
Gasoline
Jet Fuel
Distillate Fuel
Residual
Fuel Leffler, 1985
Other Refinery Units
• Steam Generation
• Wastewater Treatment
• Hydrogen Generation
• Power Generation (e.g., cogen)
• Air Separation Plant
• Loading/Unloading - Railcar, Trucks, etc.
• Storage (high pressure hydrocarbon, crude oil, intermediates)
Floating-Roof Tanks - 150‘ diameter is common
Spherical Tanks - 50‘ are common
Horton Spheroid (refrigerated)
Steam-Heated Tanks for “Heavier” Products
• Self-Contained Firewater Supply
• Firewater Pumps
What’s All this Stuff?
Physical Hazards
• High Pressure/Temperature Steam
• Oil/Gas-Fired Furnaces
• Acoustic
• High Voltage (4160V, 480V, 13.2 kV)
• Falling Hazards
• Confined Space Hazards
• Cranes/Lifting Hazards
• Hot Work Hazards
• Acid Exposure
• Toxic Vapors
• Radiation
• Flammability Hazards
Common PPE Requirements
• Hardhat
• Hardsoled / Hardtoe Shoes
• Safety Glasses with Side
Protection
• Safety Goggles or Faceshield
• Fire-Resistant Clothing
Process Hazards
• Emergency Flare
• Atmospheric Pressure Relief
• High Temperature (up to 2000oF)
• Low Temperature (e.g., Brittle Fracture)
• High Pressure (up to 3000 psig)
• Low Pressure (e.g., vacuum)