1,3-Butadiene shipment

Butadiene reacts readily with oxygen to form polymeric peroxides, which are not very soluble in Hquid butadiene and tend to setde at the bottom of the container because of their higher density. The peroxides are shock sensitive therefore it is imperative to exclude any source of oxygen from butadiene. Addition of antioxidants like /-butylcatechol (TBC) or butylated hydroxy toluene (BHT) removes free radicals that can cause rapid exothermic polymerizations. Butadiene shipments now routinely contain about 100 ppm TBC. Before use, the inhibitor can easily be removed (247,248). Inert gas, such as nitrogen, can also be used to blanket contained butadiene (249). 

Butadiene is primarily shipped in pressurized containers via railroads or tankers. U.S. shipments of butadiene, which is classified as a flammable compressed gas, are regulated by the Department of Transportation (254). Most other countries have adopted their own regulations (30). Other information on the handling of butadiene is also available (255). As a result of the extensive emphasis on proper and timely responses to chemical spills, a comprehensive handbook from the National Fire Protection Association is available (256). 

Screened out Herbicide product shipments Waste stream of 32% HCI Butadiene and acrylonitrile truck receipts Repackaged chlorine cylinders Herbicide product shipments Waste stream of 32% HCI... 

Escalated for more detailed review Repackaged chlorine in ton containers Bulk and non-bulk pesticide shipments Repackaged chlorine Butadiene and acrylonitrile truck receipts... 

Butadiene Tamper—requiring suppher to add tamper-resistant seals to all tank tmcks, and requiring the facility to verily the seal before accepting it on site will deter tampering in transit and enable the facihty to detect tampered shipments when arriving on site. 

Under the appropriate DOT and TC regulations, inhibited 1,3-butadiene is authorized for shipment as follows [6, 9] ... 

Inhibited 1,3-butadiene is authorized for shipment in cylinders, single-unit tank cars, TMU tank cars, and motor vehicle cargo tanks and portable tanks. 

Butadiene is highly reactive and readily polymerizes, and it is authorized for shipment only if inhibited. Among inhibitors often used are tertiary butylcathechol, di-n-butylamine, and phenyl-betanaphthylamine. Inhibited 1,3-butadiene is shipped as a liquefied compressed gas under its own low vapor pressure of about 21 psig at 70°F (145 kPa at 21.rC). 

Single-unit tank cars and TMU tank cars are authorized by the DOT for the shipment of inhibited 1,3-butadiene as follows provided that interior pipes of loading and unloading lines are equipped with excess flow valves ... 

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