Using Methanol Safely - Wayne State 2008-02-25آ  Using Methanol Safely ... • fuel – race cars, model

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  • Using Methanol Safely

    G.C. Wellon, P.Eng. Manager, Responsible Care

    04 February 2008

  • Overview

    • Methanex – who we are

    • Responsible Care – why we care

    • Methanol and its properties

    • Health affects & first aid

    • Protection & Detection

    • Fire Prevention

    • Spill Response

    • Resources Available

  • Methanex Corporation

    • Methanex Corporation

    8 Methanex is the world’s largest methanol producer and marketer

    8 Head office in Vancouver, Canada

    8 Production facilities in Chile, New Zealand and Trinidad

    8 Marketing offices located in Asia Pacific, Europe, North America and South America

  • Methanex Global Supply Chain

    OfficeOffice

    Production HubProduction Hub

    Flexible AssetFlexible Asset

  • Responsible Care®

    • Responsible Care®

    8 Responsible Care®, originated by the Canadian Chemical Producers’ Association, is a guiding principle that Methanex applies globally as its commitment to:

    • Health and safety – employees, suppliers, customers and all methanol users

    • Environmental protection

    • Safe operation in communities where Methanex operates

  • Responsible Care®

    • Responsible Care®

    8 Incorporated into all Methanex business units

    8 Encompasses the life cycle of our products –

    • inception Þ manufacture Þ use Þ ultimate disposal

    8 Recognise & respond to community concerns

    8 Increase knowledge by providing information to customers, end users, community, and others

  • Using Methanol Safely

    • Traditional Methanex customers – large chemical manufacturers

    8 Other applications becoming more common and growing rapidly

    • DME, biodiesel manufacture, Waste water treatment

    8 As the largest MeOH producer, Methanex has a responsibility to communicate about Methanol safety

    8 Why do we think this is necessary?

  • Recent Incidents

    Firefighters arrive at the scene of a methanol storage tank that exploded, claiming the lives of two municipal workers. Photo: WESH-TV, Orlando, FL.

    January 11, 2006

  • Recent Incidents

    Biodiesel fire in Canby, OR Photo courtesy: Canby Fire

    June 23, 2006

  • Methanol

    • Methanol

    8 Clear, colorless liquid

    8 Made up of carbon, hydrogen and oxygen

    methanol CH3OH

  • Methanol

    • Methanol

    8 Used as a building block for other chemicals:

    • formaldehyde, acetic acid, methyl amine, methyl methacrylate …

    • which in turn are used to make adhesives, paints, plastics, resins, textiles …

    8 Many other uses:

    • windshield wiper fluid

    • biodiesel

    • waste water treatment

    • fuel – race cars, model aircraft, fuel cells, cooking

  • Flammable

    Burns with a clear, low heat flame

    Difficult to see during daylight

    Impact confined to size of spill

    Biodegrades quickly

    Soluble in water

    Readily absorbed into the body

    Important Properties of Methanol

  • Methanol Safety Risks

    • Methanol – 2 Key Safety Risks

    8 Fire

    8 Health

    • These risks can be managed to keep you safe

  • Managing the Health Risk

    • Methanol Health Risk

    8 As a liquid or vapour, methanol is poisonous

    • Cannot be made to be non-poisonous

  • Ceiling = 800ppm

    Detect odour = 2000ppm

    Time Weighted Average

    TWA = 200ppm

    Short Term Exposure Limit

    STEL = 250ppm

    Immediately dangerous to life and health

    IDLH = 6000ppm

    CH3OH

    Methanol Inhalation Toxicity Data

  • A 0.1 % solution @ 20°C gives an air/vapour mixture above the solution of 200ppm (TWA)

    A 100% solution @ 20°C gives an air/vapour mixture above the solution of 105,000ppm (IDLH @ 6000)

    CH3OH

    Methanol Inhalation Toxicity Data

  • Managing the Health Risk

    • Methanol Health Risk

    8 Symptoms of methanol poisoning:

    • Weakness, dizziness, nausea, vomiting, dimness of vision and unconsciousness

    • Swallowing as little as 50 mL or less than ¼ cup can be fatal

  • Managing the Health Risk

    • Methanol Health Risk

    8 4 routes into the body

    • Skin contact

    • Eyes

    • Breathing

    • Swallowing

  • • Health Effects

    8 Skin Contact

    • May cause dermatitis

    8 Eye Contact

    • May cause irritation, tearing and burning

    8 Inhalation

    • Methanol will absorb into the body very quickly as a vapour with weakness and dizziness coming on fast

    8 Ingestion

    • 50 ml can be fatal, as little as a mouth full

    Managing the Health Risk

  • Managing the Health Risk

    • Personal Treatment if Exposed

    8 Contact with Skin:

    • Remove clothing that is soaked with methanol; treat clothing as hazardous (flammable)

    • Wash affected area with soap and water for 15 minutes

    • If irritation occurs, seek medical attention

  • Managing the Health Risk

    • Personal Treatment if Exposed

    8 Contact with Eyes:

    • Immediately flush with gently running water

    • Continue for at least 15 minutes

    • Ensure all surfaces and crevices are flushed by lifting upper and lower eyelids

    • Obtain medical attention

  • Managing the Health Risk

    • Personal Treatment if Exposed

    8 Inhalation:

    • Remove the person to fresh air – IF IT IS SAFE TO DO SO

    • May require artificial respiration

    • Obtain medical attention – possibility of delayed onset of symptoms

  • Managing the Health Risk

    • Personal Treatment if Exposed

    8 Ingestion:

    • Swallowing even small amounts of methanol can be life threatening

    • Onset of symptoms may be delayed for 18 – 24 hours

    • Do NOT induce vomiting

    • Obtain medical attention immediately

  • Managing the Health Risk

    • Personal Protection

    8 Protect the 4 routes of entry

    • Skin contact

    • Eyes

    • Breathing

    • Swallowing

  • Low risk of vapour & Low volume splash

    8 Fire retardant clothing

    8 Gloves

    • Silvershield or • Disposable 0.9mm Nitrile

    8 Eye protection

    • safety glasses with side shields • possibly full face shield

    8 Boots

    • full foot cover

    Personal Protection

  • High risk of vapour & Low volume splash

    Personal Protection

    8 Full chemical suit

    8 Gloves

    • chemical resistant rubber

    8 Canister with full face mask

    • Class 1 Organic Vapour • e.g., AX-P3

    8 Boots

    • chemical resistant rubber

  • High risk of vapour & High volume splash

    Personal Protection

    8 Full chemical suit

    8 Gloves

    • chemical resistant rubber

    8 CABA / SCBA

    • compressed air breathing apparatus • self-contained breathing apparatus

    8 Boots

    • chemical resistant rubber

  • Large volume emergency response clean up

    Personal Protection

    8 Full chemical suit

    • Fully encapsulating suit

    8 Gloves

    • chemical resistant rubber

    8 CABA / SCBA

    • compressed air breathing apparatus • self-contained breatheing apparatus

    8 Boots

    • chemical resistant rubber

  • 8 Methanex uses SCBA / CABA Respiratory Protection

    Personal Protection

    8 Can use canisters with Full Face Mask

    • Class 1 organic vapour or AX-P3

    • Monitor atmosphere if using canisters

    • Can use @ 500ppm for aprox. 20 min

  • To avoid adverse health affects, monitor your atmosphere using either...

    • Detector tubes

    • Electronic Instruments

    • Absorbent tubes

    • Biological Monitoring

    Detection of Methanol

  • 8 One off reading

    8 Require a pump

    8 Sample air through tube

    http://www.draeger.com/ST/internet/US/en/Products/Detection/ Drager-Tubes/draeger_tubes.jsp

    Detector Tubes

  • 8 Continued readout

    8 Can set alarm

    8 e.g., Draeger Toximeter PAC III

    8 Sensor for CO2

    8 Cross sensitive for Methanol

    Electronic Instruments

    http://www.draeger.com/ST/internet/US/en/Products/Detection/ PortableInstruments/SingleGasMonitors/single_gas_monitors.jsp

  • 8 Tube with silica gel

    8 Connected to pump

    8 Analysis in laboratory by Gas Chromatography

    Absorbent Tubes

  • 8 Analysis of urine

    • Baseline aprox. 2-5 mg/L

    • >15mg/L considered exposed

    8 Examination by Opthamologist

    8 Analysis of blood

    • liver functions

    Biological Monitoring

  • Flash point 11°C

    LEL 6% UEL 36%

    Autoignition point 470°C

    @ 20°C a 40% solution