Gasoline Storage Flashcards
What is the primary function of the Gasoline Storage System?
To handle 100% of the gasoline and gasoline components moving through the refinery.
What are the major system streams in the Gasoline Storage System?
Inputs, outputs, and effluents and vent streams.
What is the importance of training in the Gasoline Storage System?
To ensure safe and economic operation and maintenance of the system.
What must a Facility Technician demonstrate after completing the training module?
Knowledge of system streams, utilities, equipment, and system control.
What are the primary inputs for the Gasoline Storage System?
- DLCG/DHCG/C5
- Mixed light naphtha
- Reformate
- HSR
- Butane
- Alkylate
What does DLCG stand for?
Desulphurised Light Cat Gas.
What is produced as outputs by the Gasoline Storage System?
- DLCG/DHCG/C5
- Mixed light naphtha
- Blended gasoline
- Alkylate
What is the function of the Gasoline Storage Subsystem?
To provide storage for gasoline component streams and blended gasoline.
What utility is essential for the Gasoline Storage System to operate effectively?
- Electricity
- Essential instrument air
Fill in the blank: The Gasoline Storage System produces _______ that must be disposed of by treatment.
water
What type of tank is T-192?
A circular, above-ground storage tank with a cone roof and floating pan.
What is the approximate size of T-192?
150 feet in diameter and 56 feet high.
True or False: The Gasoline Storage System can operate without electricity.
False
What is the role of the Facility Technician in relation to equipment?
To monitor and operate the equipment and perform routine preventive maintenance.
What type of material is primarily used in constructing the equipment in the Gasoline Storage System?
Carbon steel
What does HSR stand for in the context of the Gasoline Storage System?
Heavy Straight Run
What is the purpose of the overflow slots in T-192?
To prevent the pan from being crushed against the roof during accidental overflow.
What is the significance of the Gasoline Storage System to the refinery’s economic health?
Its operations must be optimized to prevent shutdowns of upstream units and ensure efficient loading of ships.
What are the two utilities directly associated with the Gasoline Storage System?
- Electricity
- Essential instrument air
List the effluents and vent streams produced by the Gasoline Storage System.
Water
What is the role of blended gasoline in the Gasoline Storage System?
To be stored until demand arises for distribution.
What are the contents of the Gasoline Storage System’s outputs?
- Gasoline blend components
- Finished gasoline products
What is the purpose of the training workbook developed by KBC Advanced Technologies?
To provide general information about the specific subject matter of the Gasoline Storage System.
What does the acronym RFCCU stand for?
Residue Fluidised Catalytic Cracking Unit.
What is C5?
Pentane from the RFCCU
What is the function of T-192?
To store the C5 pentane rundown stream from the RFCCU
Describe the features of T-192.
Circular, above-ground storage tank with a cone roof and a floating pan, overflow slots, vents, FRP-lined, approximately 150 feet in diameter and 56 feet high, contains approximately 3146 barrels per vertical foot
What is the primary function of T-193?
To receive and store the LSR/ASU/Topper Light Naphtha rundown streams until needed for gasoline blending
What does LSR stand for?
Light straight run from the NHT
What does ASU stand for?
Aromatic Saturation Unit
What does Topper Light Naphtha refer to?
A rundown stream from the Hydrocracker Unit
What are the dimensions of T-193?
Approximately 150 feet in diameter and 56 feet high, contains approximately 3146 barrels per vertical foot
What is the primary function of the Gasoline Product Storage Tanks (T-202, T-203, T-204, T-205, T-206, T-207, and T-216)?
To store blended gasoline product
What features do the Gasoline Product Storage Tanks have?
Circular, above-ground storage tanks with a cone roof and a floating pan, overflow slots, vents, and a level switch
What is T-214 used for?
Storage of light cut naphtha (alkylate from the Alky Plants), a component of blended gasoline
What is T-215 used for?
Storage of light cut naphtha (HSR from the NHT), a component of blended gasoline
What type of lining do T-214 and T-215 have?
FRP/epoxy-lined
What is the purpose of the level switch in the tanks?
To prevent the mixer from starting when product level is less than 10 feet deep
True or False: The Gasoline Storage Subsystem stores gasoline blend components until they are needed for blending.
True
What happens to the gasoline component streams as they enter or leave the Gasoline Storage Subsystem?
There is no change in the streams
What is the primary purpose of process instrumentation in the system?
To control the operating system
What are the control elements in the Gasoline Storage Subsystem?
Manually operated valves, SAAB level indications, remote temperature indications, and sampling and gauging of tanks
What do the overflow slots in the tanks prevent?
The pan from being crushed against the roof in the event of accidental overflow
Fill in the blank: T-192, T-193, T-202, T-203, T-204, T-205, T-206, T-207, T-214, and T-215 are examples of __________.
Gasoline Storage Tanks
What is the significance of the Gasoline Storage System’s operation?
To operate in a safe, efficient manner that protects people, equipment, materials, and the environment
What does DHCG stand for?
Desulphurised Heavy Cat Gas
What does DLCG stand for?
Desulphurised Light Cat Gas
What does HDC stand for?
Hydrocracking
What does NHT stand for?
Naphtha Hydrotreater
What does RFCCU stand for?
Residual Fluidic Catalytic Cracking Unit
What does FRP stand for?
Fibreglass Referenced Plastic
What are the inputs to the system in the Gasoline Storage Subsystem?
- DLCG/DHCG/C5
- Mixed light naphtha
- Reformate
- HSR (Heavy Straight Run)
- Butane (C4H10)
- Alkylate
What are the outputs from the Gasoline Storage Subsystem?
- DLCG/DHCG/C5
- Mixed light naphtha
- Reformate
- HSR (Heavy straight run)
- Butane (C4H10)
- Alkylate
What is included in the effluents and vent streams?
- Water
What utilities are used in the Gasoline Storage Subsystem?
- Electricity
- Essential instrument air
What is the equipment number for the DLCG/DHCG/C5 RFCCU Naphtha Gasoline Composition Tank?
T-192
What is the equipment name for T-193?
Mixed Light Naphtha Gasoline Composition
List the equipment numbers for the Gasoline Product Storage Tanks.
- T-202
- T-203
- T-204
- T-205
- T-206
- T-207
- T-216
What type of tank is T-214?
Gasoline Product Storage/ Gasoline Blender Composition Tank
What is the purpose of the P1 performance objective?
Identify the system streams and utilities in the field
What does the P2 performance objective focus on?
Identify the system equipment in the field
What is required in the P3 performance objective?
Trace the subsystem in the field and explain how it ties together the system
What does P4 performance objective entail?
Locate the instrumentation in the control room and in the field
What are the tasks involved in the P5 performance objective?
- Explain and draw the relationship between the system and the subsystem
- Sketch the System Block Flow Diagram
- Create Subsystem Equipment Flow Diagrams
- Draw a Plot Plan of the System Equipment
- Describe the process flow and effects of equipment failure
True or False: The Gasoline Storage Subsystem includes both inputs and outputs.
True
Fill in the blank: The equipment number for the Gasoline Product Storage/ Gasoline Blender Composition Tank is _______.
T-214
What is the significance of the instructor’s signature in the performance objectives?
Indicates satisfactory completion of the performance objective
