Products Range

Nitrogen Plants / Oxygen Plant

The oxygen plant and nitrogen plant are safe and economical & operate with an expansion engine which lowers the operating pressure upto 30-40 kg/cm, lowers the power consumption and is trouble free.The oxygen and nitrogen plant mainly consists of AIR COMPRESSOR (Ingersol Rand) Molecular sieve battery for removal of acetylene and hydrocarbons from the process air and eleminating the use of caustic soda and cost saving as there is no need of any recurring cost of chemicals. The production plant can produce both OXYGEN & NITROGEN simultaneously and the plant BDM models have a Built-in internal compression liquid oxygen pump to fill bone dry high pressure oxygen upto 165 kg/cm in cylinders.

Silent Features of Nitrogen Plant

• Very simple to operate
• No raw material is required
• Trouble free operation for years (German design)
• Easy availability of spare parts
• Low power consumption
• Production of oxygen & nitrogen simultaneously without use of bulky gas holders.
• Latest molecular sieve technology without recurring cost of chemicals
• Oxygen and Nitrogen Plants also in stainless steel column.

Process Description of BDM Oxygen and Nitrogen Plant

The free atmospheric air is sucked in the oxygen/nitrogen plants by a multi-stage air compressor through a filter and compressed to the working pressure. After each stage, intermediate coolers and water separators are provided. The compressed air then passed through the evaporation pre-cooler and then to the molecular sieve battery where the moisture and carbon di-oxide are removed from the process air. It then passes through the heat exchanger No.1 where it is cooled by the out-going waste nitrogen and product oxygen produced in the oxygen plants.

A part of this cold air then flows through an expansion machine and the balance through the 2nd heat exchanger. The ratio of the two air streams is controlled by an expansion valve, RI. Both these streams of air then unite in the medium pressure column where it partially liquefies.

The liquid air (rich liquid) then passes through the expansion valve R2 to upper column which is at lower pressure then the medium pressure column. Similarly the liquid nitrogen (poor liquid) travels from the medium pressure column to the upper column through an expansion valve R3 where the separation of oxygen and nitrogen occurs. Nitrogen being more volatile passes out as a gas from the top of the column and this waste nitrogen flows through both the heat exchangers cooling the in-coming air. Similarly the product oxygen is also passed through the two heat exchangers to cool the incoming air and then to the filling manifold via a liquid pump. If a small amount of air is vented out from the upper column, higher purity nitrogen can also be obtained firm this plant.R4 valve is provided in order to fasten cooling during start-up after defrost.

Acetylene Plants

Features of Acetylene Plants
Acetylene (C2H2), a compound of carbon and hydrogen, is a colorless, highly flammable gas. It is slightly lighter than air and has a garlic-like odor. Acetylene is stored in high pressure cylinders filled with a porous material and containing acetone, into which the acetylene is dissolved. Unless dissolved in a solvent, acetylene will dissociate at pressures above 15 psig and form lamp black and hydrogen. Heat is generated with dissociation, which in turn, produces a danger of explosion.

Acetylene is manufactured by the reaction of water with calcium carbide. It is also manufactured by thermal cracking of hydrocarbons, or by partial combustion of methane and oxygen.

Acetylene has become increasingly prominent as a raw material for a whole series of organic compounds, among them acetaldehyde, acetic gas, and acetic anhydride. The remaining 20% of the acetylene production is principally used for oxy-acetylene cutting, heat treating, and welding.

Our BDM acetylene plant is highly versatile and designed and manufactured by experienced and qualified Engineers. All the parts are made with the best materials as per drawings with complete inspection and quality control.

The Acelytene plant is highly safe and dependable and is FULLY AUTOMATIC and are available in models BDM 45 & BDM 100 in sizes of 45 & 100 m/hr. All the operations are automatic and performed by imported pneumatically controlled valves assisted by highly sensitive senssors alongwith the temperature controlled instruments. The entire plant is designed with utmost safety in mind alongwith flash back arrestors, High pressure reverse flow check valves and complete help to protect both the equipements and the operators.

 

Nitrogen Plant