Airborne Sulfur Dust: Composition and...
Transcript of Airborne Sulfur Dust: Composition and...
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MESPON 2015 – Abu Dhabi -- 20 October 2015
Jerry d’Aquin Con-Sul, Inc. USA
consulinc.com
Member TSI, TFI, IFA
Airborne Sulfur Dust:
Composition and Control
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate INTRODUCTION
• Who is Con-Sul?
Client-Specific “Commercial Consulting” since 1987
Formed Sulfur Expertise since 1983
• Why speak at MESPON 2015?
YOU ARE THE CENTER of global sulfur PRODUCTION Safety, Health & Environment is your RESPONSIBILITY
Angie’s goal: Truthful Problem Solving Exchanges
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
NO ONE WANTS THIS
Sulfur can burn, explode Dust is harmful to all
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
PURPOSE of PRESENTATION
• Inform Research – 1983-86, 2006-2015
• PROMOTE SAFETY
• Safe guidelines
• SHE responsibility
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
Pollutes environment when uncontained
Irritates throat, lungs, skin, eyes of workers…families? and citizens
Static electricity can ignite
AIRBORNE SULFUR PARTICULATE
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S MESPON 2015 – Abu Dhabi -- 20 October 2015
Airborne Sulfur particulate
TODAY’S OUTLINE
• What is “Formed Sulfur”
• What is size distribution, pre/post shipping
• What is Airborne Sulfur Particulate
• Mitigating Airborne Particulate
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MESPON 2015 – Abu Dhabi -- 20 October 2015
Airborne Sulfur Particulate
• Formed Sulphur: Pastille, Prill or Granule Each uses a different manufacturing process • Not Formed Sulphur: Irregular shaped pieces --
dusty “Slate” to very dusty “Crushed Bulk”, “Lump”– over 15% under 300 micron
WHAT IS FORMED SULPHUR, what is not?
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MESPON 2015 – Abu Dhabi -- 20 October 2015
FORMED SULFUR – PRODUCER SAMPLES
PASTILLES
WET-FORMED PRILLS GRANULES
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Sieve Size (mm)
Shantz - #1 End of Belt @ Forming Bldg
Long Beach, Cal Sul, Belt
Brake GXI - Produced
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Pan No. 50 No. 30 No. 16 No. 8 No. 6 No. 4 3/8"
PARTICLE SIZES OF THE THREE FORMED SULPHUR TYPES
Granule
Source Pastille -- Shantz Granule – East Calgary Wet Prill – Long Beach
Pastille
Wet Prill
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2015 IFA Global Safety Summit
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Pan No. 50 No. 30 No. 16 No. 8 No. 6 No. 4 3/8"
Sandvik, Wadi Sudr-Top(Qingdao)
D-II - Beaumont (Unloaded SAFI)
Safi - ADNOC Vessel Hold
PARTICLE SIZES OF THE THREE FORMED SULFUR TYPES (Samples Taken at Ship’s Destination)
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TRANSPORT IMPACTS PARTICLE SIZE - Pastille
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Pan No. 50 No. 30 No. 16 No. 8 No. 6 No. 4 3/8"
Sandvik, Wadi Sudr-Top (Qingdao)
Shantz - Silo Reclaim
Shantz - First Machine on Right
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
A B
COMPOSITION, SIZE and DUST CONTENT VARY SAME SHIP, retention sample GRANULE – ODESSA, Ukraine
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A GRANULAR SULFUR PARTICULATE SUB-50 MESH 300 micron (0.3mm) ODESSA
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Granular Sulfur Particulate: sub-50 mesh, 300 micron Screened at Odessa
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
0.5% of the total cargo is not much KEEP IT FROM FROM BLOWING IN THE WIND!
SUB- 100 Mesh, 150 micron
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
MICROSCOPIC SULFUR PARTICULATE
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
ESTIMATED minus 100 mesh to 200 mesh US Minus 150 micron to plus 75 micron particles
equaled ONE-HALF OF ONE PERCENT (0.5%) of each sample
A 30,000 ton cargo of formed sulfur could include 150 tons of such tiny particle
(in this case, minus 75 micron particles add another 14 tons)
AIRBORNE SULFUR PARTICULATE
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
BULK HANDLING A FRIABLE PRODUCT WHAT MAKES SULPHUR DUST?
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
CAUSES DEGRADATION and DUST
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
SPRAY WATER, SURFACTANT, FOAM
LIMITED EFFECTIVENESS
WITH DRY SULFUR PARTICULATE
Brake, Germany
MOISTURE IS USEFUL TO PREVENT BLOWING DUST
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
MUST HAVE THOROUGH MIXING TO MOISTEN ALL PARTICLES -
NOT EASY WITH RAPIDLY MOVING CONVEYORS
WATER DOES NOT PERMEATE THE SULFUR ‘COCOA EFFECT’
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
SULFUR DUST MUST BE MOIST TO LIMIT AIRBORNE PARTICULATE
• MIXED IN WATER, SULFUR PLATELETS WILL ADHERE TO ONE ANOTHER’S FLAT SURFACES THROUGH WATER’s “SURFACE TENSION”
• MOISTURE BETWEEN THESE FLAT PARTICLES WILL BE ATTRACTED TO SIMILARLY-LINKED WATER MOLECULES
• MOIST SULFUR PARTICLES WILL LINK INTO LARGER PIECES, LIMITING AIRBORNE DUST
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
September 2015, Alpine Laboratory
Moisture
Screen size Dry 1% 2% 3%
(Smaller than)
#50US 0.297mm 1.0% 0.2 0.0 0.0
#100 0.149 0.6 0.1
#200 0.074 0.6 0.0
# 270 0.053 0.4
#100 0.149 0.1
WATER WORKS TO LIMIT ARBORNE PARTICULATE
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
ALTERNATIVES TO ACHIEVE MOISTURE CONTENT FOR PARTICULATE-FREE TRANSFERS
• USE VERY FINE SPRAYS and MIXING ON CONVEYER BELTS and AT TRANSFER POINTS -- have complete storage and reclaim delivery system checked by experts in sulfur handling
• THOROUGHLY WET PRIOR TO RECLAMATION
• SOLIDIFY BY DIRECT IMMERSION IN WATER
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
ALWAYS REMEMBER
• Sulfur is brittle and fractures easily
• DRY Sub-150 micron easily becomes airborne
• Moisture prevents airborne particulate
• BE CLEAN – BE SAFE: +1 to 2% moisture specification for your Formed Sulfur, properly applied
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
CONCLUSION -- USE + 1% MOISTURE MINIMUM
• VERY LITTLE: • Additional cost for 1% to 2% moisture is
insignificant compared to cargo value • IT IS CHEAP FOR SAFETY, HEALTH and
ENVIRONMENTAL PROTECTION it provides at PRODUCER and CONSUMER LOCATIONS
IT IS THE RIGHT WAY TO GO
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MESPON 2015 – Abu Dhabi -- 20 October 2015 [email protected]
Airborne Sulfur Particulate
OTHER ASPECTS OF SULFUR FORMING, TRANSPORT & HANDLING CAN BE IMPROVED Jerry d’Aquin consulinc.com
THANK YOU!