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Although no two Ethylene Oxide Loading solutions will be identical, the product itself determines much of the critical design criteria that will ensure that optimum safety and productivity can work together in harmony.
What is Ethylene Oxide? Ethylene Oxide or EtO is a flammable, colorless gas with a sweet odor. It’s used as a chemical intermediate in the manufacture of ethylene glycol and also used as a sterilizing agent and fumigating agent.
In the United States, Ethylene Oxide is typically a “tight-fill” (closed-loop) loading operation and is loaded into rail cars via chemical hoses or 3” stainless steel loading arms. Ethylene Oxide, if not handled properly can cause serious injuries and Personal Protective Equipment (PPE) is required. Additionally, because operators are on top of the vehicles during the loading process, fall prevention is essential, not only for safety but increases throughput.
Ethylene Oxide is typically shipped in DOT-105J insulated tank cars with safety valves that meet the DOT specification for the transportation of Ethylene Oxide and other similar commodities. The rails cars themselves are ~ 9′ outside diameter with an overall length of ~45’ to 60′, with a 6’ x 6’ center opening or off-set opening crash box
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Our experts simplify the complexBulk Chemical Specialist
“As subject matter expert, I’ll leverage my years of experience as your personal consultant throughout the project to ensure you get a world-class solution.”Ray Evans-Bulk Chemical Market SpecialistContract# 47QSAWA19D0085View Full Text
Trailers are top unloaded. An extension pipe with two valves is flanged to the top of the trailer. One valve is located at the top, and the other is at the end of the pipe on the bottom for easy access. Trailers should arrive on-site with blind flanges.
All trailers must be equipped with pressure relief valves, and trailers with bottom outlets must be equipped with remote controlled stop valves. Tank truck (un)loading procedures are similar to railcar applications with the trailers meeting established DOT requirements for hauling ethylene oxide or similar cargo. Approved DOT trailers include MC 300 thru MC 312, MC 330, and MC 331.
Typically, as a starting point, we will need to know answers to these questions for your project
- The Railcar connection locations need flexibility – Do you know what the breadbasket connections look like?
- Are you using liquid and vapor arms/hose as two separate devices or a piggyback arm?
- Is the loading station indoors or outdoors?
- Is the loading area temperature controlled?
- How are you going to spot your railcars
Our highly trained technical sales team will undertake a detailed site survey prior to undertaking any work to check and clarify all dimensions, obstructions, access issues and other salient points. Our challenge is to provide the safest working environment – protecting operators and the equipment – while simultaneously enabling you to improve throughput and productivity.
Your Project Needs
Whether you are looking for a turn-key installation, on-site supervision or a maintenance program, SafeRack is positioned to assist you. We can do as little or as much as you need. Our project management and supervision team is the best in the business at supporting your company’s needs.
- Collaborative Design – Our loading platform specialists will work with you one on one, if you design to design the best loading solution for your specific needs
- Contract review – drawings and associated documents relating to the contract prior to site arrival
- Risk Assessment – Undertaking a site risk assessment
- Shipment Inspection – Detection of any shipping damage or abnormalities
- Material Receiving – Supervised off-loading and transport at site
- Installation Management – Supervised Installations and Coordination
- Start-up & Commissioning – On-site training for both users and maintenance personnel
Generally speaking, SafeRack recommends rigid pipe loading arms where possible for the following reasons:
- Balanced throughout their movement envelope
- Designed not to hit the ground – protecting the asset and the operator
- Ergonomic – one man operation
- Fitted with manual or actuated valves.
- Fitted with optional purge/vent facilities
- Can be moved into position with ease and left hanging in the air while the operator prepares the tanker connection
- Parked neatly
- Annual pressure test
- Are difficult to stow neatly when not in use
- Can be dropped
- Can be driven over
- Are very heavy to use if fitted with a valve at the tanker connection point
- Cannot be easily heated or have vent/purge valves fitted to it
- Prone to catastrophic failure
Typical Ethylene Oxide Loading Platform
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Below are some of the loading and unloading solutions for illustrative purposes only. Our experts will work with you and your team for a custom solution to suit your needs.
Ethylene Oxide Loading
Ethylene Oxide is typically loaded into railcars or tank trucks via boom supported stainless steel loading arms or chemical hoses with a flange connection. The arm or hose will have a top inlet with a control valve to ensure that it is self-draining after use and is supported along the length of a mechanical loading arm to improve handling; this is known as a by-pass arm. You can install one liquid and one vapor arm, or mount both the liquid and vapor hoses on one by-pass arm.
For unloading, typically you would use a rigid stainless steel self-draining loading arm with Nitrile (TPE) or PTFE seals. Purge lines can be fitted to the arm, for nitrogen purging. Additional features such as parking latches with proximity sensors can be incorporated into the total system to ensure the arm is correctly stowed when not in use, before any rail movement can occur.
Note: unloading hoses must be replaced annually to ensure their integrity.
Loading Gangways and Safety Cages
A wider access gangway (48″-60″ is preferable) as it helps improve access and egress to and from the vessel. In addition, a wider gangway will reduce the risk of the operator’s PPE getting caught, torn or damaged, and will improve productivity and safety. Powered gangway solutions are also an option, with both hydraulic and pneumatic solutions being commonly used.
Each gangway will be fitted with a two-rail safety cage for the railcar crash box. This will be a centered 6’x6’ safety cage to sit directly over the cashbox. This will provide a safe, secure work environment for your operator when connected to their breathing apparatus.
GX SELF-ADJUSTING STAIR (SAS) GANGWAY
SafeRack’s NEW GX SAS gangways use Retractalok power-assist technology allowing operators to raise or lower effortlessly, light as a feather to lift, solid as a rock. Tested in the most critical applications, this revolutionary new gangway outperforms all others. Available in multiple lengths and widths. Learn More
Ethylene Oxide Eye Wash/Drench Showers
ANSI guidelines state that an Eye Wash/Drench Showers need to be located 10 seconds or 55′ (16.8m) from contaminants or hazardous materials.
Eyewash stations need to be on the same horizontal plane with no obstructions.
Therefore, we would propose the installation of a standard combination Drench Shower/Eyewash Unit, which will save limited space and fit easily into any work environment.
Ethylene Oxide Spill Containment
Spill containment pans will be provided at the point of loading operations and is an essential piece of equipment in overall site safety and environmental protection.
Ethylene Oxide Grounding
Ethylene Oxide is a highly flammable gas, and industry best practice includes the grounding of all vessels before starting the (un)loading process.
- Ground controllers — ensure true grounding before product flow is permitted
- Explosion-proof enclosures — meet or exceed UL, CSA and Ex requirements
- Always use non-sparking tools when handling EtO
Ethylene Oxide Safety Gates
Safety Gates will be installed at the top of stairs and any other openings to ensure operator safety at all times.
YellowGate Safety Gates
SafeRack’s line of industrial safety gates is the most flexible product on the market with the ability span openings between 16” and 36” and is field adjustable with nothing more than a wrench. Learn More
Ethylene Oxide Options
- Lighting – Lighting both over and under the platform will be provided. For overcast days or second shift, lighting is essential for improved safety and improved productivity.
- Platform & Canopies – Full platform canopies reduce exposure to the elements and improve the safe and productive loading operation from the operator’s perspective.
- Operator Shelter – Depending on your site requirements, consideration should be given to the requirement of an operator or guard building on the loading platform. This can be customized to meet specific site requirements
- Wheel Chocks – Railcar Wheel Chocks provide fast blocking of all types of railcars and meet OSHA regulations to safely prevent railroad cars from moving during loading or unloading operations. This is a requirement by the Department of Homeland Security
Personal Protective Equipment PPE Requirements
Eye/Face Protection: Wear chemical safety goggles. A face shield (with safety goggles) may also be necessary.
Skin Protection: Wear chemical protective clothing e.g. gloves, aprons, boots. Coveralls or long sleeve shirts and pants in some operations. Wear a chemical protective, full-body encapsulating suit, and self-contained breathing apparatus (SCBA). Suitable materials include: butyl rubber, neoprene rubber, Viton®, Viton®/butyl rubber, Barrier® – PE/PA/PE, Silver Shield® – PE/EVAL/PE, Trellchem® HPS, Trellchem® VPS, Saranex®™, Tychem® BR/LV, Tychem® Responder® CSM, Tychem® TK. The following materials should NOT be used: natural rubber, polyvinyl chloride. Recommendations are NOT valid for very thin neoprene rubber gloves (0.3 mm or less).
Respiratory Protection: Up to 5 ppm:
(APF = 10) Any chemical cartridge respirator with cartridge(s) providing protection against chlorine*; or Any supplied-air respirator*.
*Reported to cause eye irritation or damage; may require eye protection.
APF = Assigned Protection Factor
Recommendations apply only to National Institute for Occupational Safety and Health (NIOSH) approved respirators. Refer to the NIOSH pocket guide to chemical hazards for more information.
Use a local exhaust ventilation and enclosure, if necessary, to control the amount in the air. Consider using a corrosion-resistant exhaust ventilation system separate from other ventilation systems. It may be necessary to use stringent control measures such as process enclosure to prevent product release into the workplace. Use backup controls (e.g. double mechanical pump seals) to prevent the release of this material due to equipment failure. * For illustrative purposes only. Our experts will work with you and your team for a custom solution to suit your needs
Customer Reviews4 5Definitely a very good and useful product.
The delivery came prior to the estimated delivery date and the customer service was extremely responsive and helpful with my product selection. Definitely a very good and useful product.By Mark Ajemian from CPI Automation, Inc. on 11/7/125 5Very responsive.
Light and easy to assemble. Very functional.By Eric Ringo from Barton 1792 Distillery on 4/24/185 5We now have a much superior and safer product.
We could have built something out of scaffolding and made it work. By spending a little more money, we have a much superior and safer product.By Chris Budd from Cape May County Municipal Utilities Authority on 6/9/165 5Eric did an awesome job
Our Track with Swing Gates was delivered quickly and Eric was very helpful and did an awesome job.By Hugo Vizcarra from Halliburton Energy Services on 5/24/195 5Product was delivered in less than 1 week!
Customer service was very service oriented and the whole ordering process went very well from RFQ to invoicing. Product was delivered in less than 1 week!By Michael Rollins from Luminant Generation Co. LLC on 2/27/125 5You guys can also produce and get to the customer way faster.
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Ethylene Oxide 101
Things to know about Ethylene Oxide
Ethylene Oxide is regulated by the U.S. Department of Transportation (DOT) and is classified as a flammable gas with the DOT identification number UN 1040.
EtO is a flammable, colorless gas at temperatures above 51.3 degrees F (10.7 degrees C) and smells like ether at toxic levels. EtO is found in the production of solvents, antifreeze, textiles, detergents, adhesives, pharmaceuticals, and polyurethane foam.
Do not handle this product until all safety precautions have been read and understood. Best practice loading/unloading includes wearing chemical-resistant clothing, gloves, splash goggles, and respirator at all times to protect eyes, lungs, and skin.
EtO causes skin and eye irritation and is toxic if inhaled. Chronic exposure can result in damage to internal organs such as the nervous system and kidneys. Exposure may also cause genetic defects, cancer, and damage fertility or the unborn child.
Ethylene Oxide is a highly flammable gas and forms explosive mixtures with air. Vapors are heavier than air and may collect in low spots. Because of the potential for violent decomposition, containers of EtO must be properly blanketed with inert gas and protected against fire exposure. In the event of a spill or leak, exit the area immediately. Eliminate heat and ignition sources such as sparks, open flames, hot surfaces, and static discharge. Post “No Smoking” signs.
Only properly trained and equipped personnel should be permitted to unload tank trucks. Operators should wear an approved respiratory protective device, and impervious clothing, footwear, gloves, and goggles.
OSHA Permissible Exposure Limits (PEL) @ 1ppm in an 8 hour day.
Ethylene Oxide is not compatible with aluminum, cast iron or carbon steel, so great care should be taken to avoid contact with these materials. However, galvanized or stainless steel is tolerable with Ethylene Oxide.
Is your plant or facility compliant with ANSI, OSHA, and local safety codes? We can help!
EMERGENCY EYEWASHES / SHOWER EQUIPMENT AND THE ANSI/ISEA Z358.1 – 2014 STANDARD
Following eye contact, you must start washing with water immediately to prevent permanent damage. In the event of skin contact, you must start washing with water immediately to prevent slow-healing chemical burns.
Are you aware that ANSI guidelines state that Eye Wash/Drench Showers need to be located 10 seconds or 55′ from contaminates or hazardous materials and located on the same horizontal plane, with no obstructions? If bottom loading/unloading, an additional shower should be located at grade as well. SafeRack provides the above equipment plus much more needed to keep employees safe and expedite bulk chemical loading and unloading.
OSHA Regulation Experts – Does your existing chemical safety equipment or chemical loading systems meet OSHA’s latest requirements? SafeRack’s professional technical sales consultants are available to meet with your team to make recommendations to keep your facility in front of OSHA’s ever-changing country and region-specific standards and regulations, including lifeline and trolley beam fall arrest systems, metal stairs, and access platforms.
The SafeRack approach is a collaborative one. Let’s call it The SafeRack Way. We have, over many years amassed a great deal of experience and understanding of the safety aspects involved in loading road tankers and railcars, as well as the behavioral habits of the operators.
Experts In Chemical Loading
- Acetic Acid
- Acetic Anhydride
- Acrylic Acid
- Aluminum Chloride
- Aluminum Sulfate
- Ammonium Hydroxide
- Ammonium Nitrate
- Benzyl Chloride
- DEF (Diesel Exhaust Fluid)
- Diethylene Glycol
- Dodecylbenzene Sulfonic Acid
- Ethyl Chloride
- Ethylene Dichloride
- Ethylene Glycol
- Ethylene Oxide
- Ferric Chloride
- Ferrous Chloride
- Hydrochloric Acid
- Hydrofluoric Acid
- Hydrofluorosilicic Acid
- Hydrogen Peroxide
- Hydrofluoric Acid
- Hypochlorous Acid
- Isopropyl Acetate
- Liquid Argon
- Liquid Nitrogen
- Maleic Anhydride
- Methyl Chloride
- Methyl Ethyl Ketone
- Methyl Methacrylate
- Molten Sulphur
- Nitric Acid
- Phosphoric Acid
- Phosphorus Trichloride
- Renewable Diesel
- Sodium Cyanide
- Sodium Hydroxide
- Sodium Hypochlorite
- Styrene Monomer
- Sulfuric Acid
- Sulfur Dioxide
- Titanium Tetrachloride
- UAN (Urea Ammonium Nitrate)
- Vinyl Acetate
- Vinyl Chloride
- Zinc Chloride
- Specialty Chemical
North America’s largest loading terminal
World-leading designer, manufacturer, and installer of truck and railcar loading platforms
As one of the primary railcar loading points, Hardisty is one of the major crude oil hubs in North America and a major origination point of pipelines that export to the United States. SCS was asked to supply and construct a SafeRack crude oil loadout terminal spanning nearly half a mile. The USD Hardisty terminal can load up to two 120-railcar unit trains per day and consists of a fixed loading rack with 62 railcar loading positions enclosed, separate control, operator and mechanical buildings, as well as a unit train staging area and loop tracks capable of holding multiple unit trains simultaneously. SCS also supplied and installed boom-supported loading arms with supply and vapor management systems.
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Located in South Carolina
Located in South Carolina
Located in South Carolina
Located in South Carolina
Located in South Carolina