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Home / Industries / Bulk Chemical Loading / Aniline (C6H7NH2) Handling Design, Loading, and Installation.
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Although no two Aniline 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.
Aniline, sometimes referred to as phenylamine or aminobenzene is a colorless, oily liquid that’s typically derived from nitrobenzene reduction and used primarily in the synthesis of dyes and drugs. As an aromatic in the petrochemical family, aniline consists of a phenyl group attached to an amino group, an ideal aromatic amine. It’s also the precursor to many industrial chemicals including polyurethane. The largest application of aniline is in the preparation of MDI (methylene diphenyl diisoyanates). Other uses include rubber processing chemicals, herbicides, dyes, and pigments.
In the United States, Aniline is typically a “tight-fill” (closed-loop) loading operation and is loaded into rail cars via chemical hoses or 3” carbon steel loading arms. Aniline, 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, robust, well-designed fall prevention is essential to ensure increased throughput, without compromising operator safety.View Full Text
Aniline is typically shipped in 26,000 gallon DOT-111 insulated or non-insulated tank cars with safety valves that meet the DOT specification for the transportation of aniline and other like commodities. The rails cars themselves are ~ 9′ outside diameter with an overall length of ~45’ to 50′, with a 6’ x 6’ center opening or off-set crash box openings.
Tank truck (un)loading procedures are similar to railcar applications with the trailers meeting established DOT requirements for hauling aniline or other like commodities. Approved DOT trailers include MC 307 or low pressure chemical ISO containers.
Trailers and ISO’s are typically bottom unloaded. An extension pipe with two valves is flanged to the top of the trailer.
All trailers must be equipped with pressure relief valves; and trailers with bottom outlets must be equipped with remote controlled stop valves.
Typical Aniline 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.
Aniline Loading Arms
Aniline is typically loaded into railcars and road trailers via chemical hoses.
The current best loading practice is to use a PTFE lined chemical hose, with a quick-acting coupling, often in the form of Hammer Unions with a stabber pipe.
In the U.S. loading arms are generally not used for the transfer of aniline, due to cost and long-term maintenance issues. Likewise, you also have the option to use a hose carrier. Emergency Shut-off Valves (ESV’s) can also be fitted near the inlet of the hose for additional safety in the event of a leak, rupture, or drive-off.
Loading Gangways and Safety Cages
A wider access gangway (36″-48″ 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 FLAT RAMP ACCESS (FRT) GANGWAY
SafeRack’s NEW GX-FRT is a flat ramp model popular with railcars. It features a slip-resistant walk surface and, with the use of the telescoping extension, eliminates gaps on narrow railcars. Learn More
Aniline 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.
Aniline 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
While aniline is not flammable, industry best practice includes the grounding of all vessels before starting the (un)loading process.
- Vehicle grounding and bonding — ensure true grounding before product flow is permitted
- Explosion-proof enclosures — meet or exceed UL, CSA, and Ex requirements
Aniline 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
- 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 Aniline*; 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 Reviews5 5Submitted our order with minimal knowledge of the original installation.
Stephen did a good job of getting up to speed quickly and submitting our order with minimal knowledge of the original installation. I imagine this was company-wide effort as well. Thanks for the help.By Stephen Roach from Progressive Builders Inc on 9/12/124 5Overall very good experience with your company.
Your customer service people are very good at helping your customers. Linda Hardee was very helpful with finding the right springs and getting them to me very quickly so we could get back in operation. She always stayed in constant contact with me every step along the way. Overall very good experience with your company.By Jeff Loveless from Genon Energy Inc. on 1/9/125 5Highly quality. Best steel I have ever installed.
(1) Precisely engineered by Raquel Strickland that we ran into no issues whatsoever during the construction cycle. (2) Creative design. The rack is installed at a narrow strip between existing railcar loading stations and existing other facilities, such as major pipe bridges. Raquel was able to work out a layout that all facilities are comfortable with that is also convenient outside of the railcar envelopes. (3) Highly quality. Best steel I have ever installed.By Xudong Huang from Cheyenne Refinery on 6/12/165 5Overall, each area exceeded all of our expectations.
The product was delivered very quickly, and exceeded our expectations. Our salesman was very responsive and informative. He actually stopped by to look at our other safety rack, I asked him for a quote, he measured, and got back with me very quickly. I would definitely recommend this product to anyone who would like to save space while depending on safety features.By Howard Carpenter from Helena Agri-Enterprises LLC on 8/19/185 5Every question I had, I received an answer within the same day.
Every question I had, I received an answer within the same day. SafeRack worked closely with us to provide the correct product for our application. The durability of the load out, and the lightweight design even with stainless make this product great. We have more than three of these load-outs in our plant now, and they have been the most durable and easiest load-outs to work with, period.By Jacob Vogt from Balchem Corporation on 7/28/144 5It’s lightweight, easy to instal and easy to handle.
We like the reliability of the product. It’s lightweight, easy to instal and easy to handle. Greg Crawford offered very quick responses. It was delivered on the scheduled date. FYI – the wood pallet used to transport the unit could be more hefty.By Ed Garcia from Boral Material Technologies Inc on 7/25/11
Things to know about Aniline
Aniline is an organic base used to make dyes, drugs, explosives, plastics, and photographic and rubber chemicals.
Aniline is a combustible oily and colorless liquid that when exposed to the atmosphere oxidizes and quickly picks up impurities which can give the solution a red-brown tint. Aniline has a boiling point of 360 degree F. (184 degree C) The material is stable under ambient temperature and pressure. However, the danger of explosion exists when exposed to oxygen, nitric acid, and oxidisers. Aniline also attacks rubber, plastic, and certain coatings. Keep away from heat and sparks.
In the event of ignition use andry chemical, CO2, or foam as extinguishing agents. Aniline vapor is heavier than air and may travel a distance to cause a fire or explosion far from the source
Aniline is a toxic compound and exposure via inhalation, ingestion, eye or skin contact has a negative effect on the body’s central nervous system and oxygen in the blood. Breathing in can irritate the lungs causing coughing and shortness of breath. Higher exposures can cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency. Exposure can cause headache, dizziness, nausea, and vomiting. Long-term effects can occur at some time after exposure and can last for months or years. OSHA Permissible Exposure Limits (PEL) at 5ppm.
Aniline exposure has also been linked to genetic birth defects and some types of cancers. It’s also highly toxic to aquatic life with long lasting effects.
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.
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
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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