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This PFD of jet fuel mercaptan oxidation treating was redrawn from Wikipedia file: ConvLPGMerox.png. [en.wikipedia.org/ wiki/ File:ConvKeroMerox.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported icense. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"Merox is an acronym for mercaptan oxidation. It is a proprietary catalytic chemical process developed by UOP used in oil refineries and natural gas processing plants to remove mercaptans from LPG, propane, butanes, light naphthas, kerosene and jet fuel by converting them to liquid hydrocarbon disulfides.
The Merox process requires an alkaline environment which, in some of the process versions, is provided by an aqueous solution of sodium hydroxide (NaOH), a strong base, commonly referred to as caustic. In other versions of the process, the alkalinity is provided by ammonia, which is a weak base.
The catalyst in some versions of the process is a water-soluble liquid. In other versions, the catalyst is impregnated onto charcoal granules.
Processes within oil refineries or natural gas processing plants that remove mercaptans and/ or hydrogen sulfide (H2S) are commonly referred to as sweetening processes because they results in products which no longer have the sour, foul odors of mercaptans and hydrogen sulfide. The liquid hydrocarbon disulfides may remain in the sweetened products, they may be used as part of the refinery or natural gas processing plant fuel, or they may be processed further.
The Merox process is usually more economical than using a catalytic hydrodesulfurization process for much the same purpose." [en.wikipedia.org/ wiki/ Merox]
The process flow diagram (PFD) example "Jet fuel mercaptan oxidation treating" was drawn using the ConceptDraw PRO software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
Process flow diagram (PFD)
Process flow diagram (PFD), gate valve, electrically insulated, column, centrifugal pump,
The vector stencils library "Chemical engineering" contains 24 symbols of chemical and process engineering equipment.
Use these shapes for drawing Process Flow Diagrams (PFD), Piping and Instrumentation Diagrams (P&ID), and Water Flow Diagrams in the ConceptDraw PRO software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-chemical-process
Clarifier
Clarifier, clarifier, thickener, separating equipment,
Screen
Screen, screen, separating equipment,
Filter
Filter, electrostatic precipitator, bag filter, separating equipment,
Agitator
Agitator, agitator, radial turbine agitated tank, mixing equipment,
Vapor 1
Vapor 1, vapor, horizontal, jacketed vessel, vaporizing equipment,
Vapor 2
Vapor 2, vapor, vertical, jacketed vessel, vaporizing equipment,
Vessel
Vessel, vessel,
Pump mixer
Pump mixer, pump mixer, agitated-line, mixing equipment,
Centrifugal pump
Centrifugal pump, centrifugal pump,
Fan
Fan, fan, centrifugal fan,
Blower
Blower, blower, rotary blower,
Evaporator
Evaporator, evaporator, circulating evaporator,
Tower
Tower, tower, bubble tower, sparge, process vessel,
Flash drum
Flash drum, flash drum, knockout drum, process vessel,
Roll press
Roll press, roll press, roll-type press, size-enlargement equipment,
Cooling tower
Cooling tower, cooling tower, auxiliary facility,
Tank car
Tank car, tank car,
Tank truck
Tank truck, tank truck,
Kettle
Kettle, kettle, reboiler, heat exchanging equipment,
Valve
Valve, valve, in-line,
Motor valve
Motor valve, motor valve, valve,
Venturi
Venturi, venturi, flow nozzle,
Propeller
Propeller, propeller, mixing blade,
Instrument
Instrument, instrument, instrumentation,
The vector stencils library "Pumps" contains 82 symbols of pumps, compressors, fans, turbines, and power generators.
Use these icons to design pumping systems, air and fluid compression systems, and industrial process diagrams.
"A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.
Pumps operate by some mechanism (typically reciprocating or rotary), and consume energy to perform mechanical work by moving the fluid. Pumps operate via many energy sources, including manual operation, electricity, engines, or wind power, come in many sizes, from microscopic for use in medical applications to large industrial pumps.
Mechanical pumps serve in a wide range of applications such as pumping water from wells, aquarium filtering, pond filtering and aeration, in the car industry for water-cooling and fuel injection, in the energy industry for pumping oil and natural gas or for operating cooling towers. In the medical industry, pumps are used for biochemical processes in developing and manufacturing medicine, and as artificial replacements for body parts, in particular the artificial heart and penile prosthesis.
In biology, many different types of chemical and bio-mechanical pumps have evolved, and biomimicry is sometimes used in developing new types of mechanical pumps." [Pump. Wikipedia]
The example "Design elements - Pumps" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Chemical and Process Engineering solution from the Engineering area of ConceptDraw Solution Park.
Pump symbols
Pump symbols, turbine, centrifugal, triple fan blades, shower, rotary pump, compressor, fan, rotary compressor, reciprocating, pump, compressor, positive displacement pump, pump, diaphragm, pump turbo molecular, pump screw, pump roots, pump reciprocating, pump piston, pump helical rotor, pump gear, pump gas ballast, pump, proportioning pump, metering pump, positive displacement, rotary pump, rotary compressor, motor driven, turbine, in-line pump, pump, fan, radial, fan, axial, fan blades, fan, compressor, roller vane, compressor, reciprocating diaphragm, compressor, ejector, compressor, container, compressor, centrifugal, compressor, axial flow, compressor turbo, compressor screw, compressor rotary, compressor reciprocating, compressor positive displacement, compressor liquid ring, compressor, centrifugal pump, centrifugal fan, axial flow fan, supply, wall-type, axial flow fan, supply, axial flow fan, exhaust, axial flow fan,  turbine, axial flow,
This process flow diagram (PFD) of a typical crude oil distillation unit as used in petroleum crude oil refineries was redrawn from Wikipedia file: Crude Oil Distillation Unit.png. [en.wikipedia.org/ wiki/ File:Crude_ Oil_ Distillation_ Unit.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"An oil refinery or petroleum refinery is an industrial process plant where crude oil is processed and refined into more useful products such as petroleum naphtha, gasoline, diesel fuel, asphalt base, heating oil, kerosene and liquefied petroleum gas. Oil refineries are typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units. In many ways, oil refineries use much of the technology of, and can be thought of, as types of chemical plants. The crude oil feedstock has typically been processed by an oil production plant. There is usually an oil depot (tank farm) at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid products.
An oil refinery is considered an essential part of the midstream side of the petroleum industry." [en.wikipedia.org/ wiki/ Oil_ refinery]
The process flow diagram (PFD) example "Crude oil distillation" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
Process flow diagram (PFD)
Process flow diagram (PFD), vapor, horizontal, jacketed vessel, vaporizing equipment, heater, cooler, heat exchanger, intersecting flowlines, fired heater, column, centrifugal pump, air-blown, cooler,
The vector stencils library "HVAC equipment" contains 26 symbols of HVAC equipment as pumps, fans, condensers, pipe coils, silencers, etc.
Use the design elements library "HVAC equipment" for drawing the HVAC system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control and environmental control system layout floor plans using the ConceptDraw PRO diagramming and vector drawing software.
"HVAC (heating, ventilation, and air conditioning) is the technology of indoor and vehicular environmental comfort. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers).
HVAC is important in the design of medium to large industrial and office buildings such as skyscrapers and in marine environments such as aquariums, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors." [HVAC. Wikipedia]
The shapes library "HVAC equipment" is contained in the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC equipment symbols
HVAC equipment symbols, silencer, rotary, screw pump, screw compressor, rotary pump, compressor, fan, refrigerant receiver, reciprocating pump, reciprocating compressor, pump, pipe coil, moisture eliminator, fan blades, dryer, condenser, water cooled, condenser, chiller, centrifugal pump, centrifugal compressor, centrifugal fan, axial fan, air filter,