Butylene Cylinder

Butylene is a colorless gas with a characteristic odor, an unsaturated hydrocarbon (the chemical formula is C4H8). Butylene is a low-hazard substance, it has narcotic properties and irritates the upper respiratory tract. It is liquefied at a temperature of -6.6°C and freezes at a temperature of -185.3°C. Butylene is flammable and explosive and forms explosive mixtures with air. Butylene is obtained from hydrocarbon fractions at petrochemical plants, from petroleum gases or petroleum products in the liquid state by catalytic cracking or pyrolysis, from butanol by catalytic dehydration at 300 - 350°C.

APPLICATION:

Cylinders are not hazardous cargo until they are taken into use, but in any case they should be transported in conditions that exclude mechanical damage. Cylinders filled with butylene shall be transported by rail, road and water transport in accordance with the regulations on transportation of dangerous goods, applicable to the relevant mode of transport. The cylinders shall be transported in a horizontal position with gaskets between the cylinders or in a vertical position necessarily with a guard against possible falling. The cylinders must be transported with caps screwed on.

Cylinders designed for storage and transportation of butylene must not be used for storage and transportation of other gases, and it is prohibited to perform any operations that may contaminate their internal surface and degrade the physical and chemical properties of the gas. It is forbidden to make any modifications to the cylinder bodies using welding or mechanical tools, which can lead to damage to the integrity or appearance of defects that degrade the technical characteristics of the cylinders. When using cylinders for butylene it is not allowed to install them in the places of people passage, movement of goods and passage of vehicles. All industrial premises where butylene is used must be provided with ventilation that meets the requirements of GOST 12.4.021. The content of chemical substances in the air of the working area should not exceed the sanitary and hygienic standards according to GOST 12.1.005. The maximum permissible concentration of butylene vapors in the air of the working area of production facilities is 100 mg/m3. When working in environments slightly exceeding the maximum permissible concentration of butylene, it is necessary to use industrial filtering gas masks with a filter box of grade A or boxes with protection against harmful substances marked AVER with the appropriate protection classes, at high concentrations - hose isolating gas masks with forced air supply or isolating air breathing apparatuses. When filling cylinders with butylene, the mass of gas in the filled cylinder should not exceed 0.526 kg per 1 dm3 of the cylinder capacity. The gas in the cylinders must not be completely consumed when in use. The residual gas pressure in the cylinder must be at least 0.05 MPa (0.5 kgf/cm2). The use of cylinders with butylene in the horizontal position is not allowed.

Cylinders filled with butylene are stored in special warehouses or in outdoor areas under a shelter that protects the cylinders from precipitation and direct sunlight. Warehouses and outdoor areas must be located within the lightning protection zone. In the premises where the cylinders filled with butylene are stored, it is prohibited to handle open flame; electrical networks and artificial lighting must be of explosion-proof design. Do not use tools that produce sparks on impact. Cylinders designed for transportation and storage of butylene must be protected against static electricity in accordance with GOST 12.1.018. It is forbidden to store cylinders with butylene and oxygen in the same room, it is forbidden to store cylinders in the room where the technological process of using butylene contained in them is carried out. Storage of cylinders should be carried out with the caps screwed on.