Change language

Acetylene Production Process description

Acetylene is an organic compound produced from the exothermic reaction of calcium carbide and water.  Either as liquid or gas, it is highly explosive since it is an endothermic compound and decomposes into the elements carbon and hydrogen. Acetylene is used as raw material to produce different chemicals such as vinyl chloride (a chemical used to produce PVC), 1, 4-Butanediol, vinyl acetate, etc. In addition, it is used as fuel in gas welding.  Acetylene with oxygen produces high temperature flame (3500 o C) which is used to cut and weld different metallic products.

Raw Materials

The major raw materials of the production of acetylene are calcium carbide and water.  Other auxiliary materials are nitrogen, iron oxide and silica gel. 
The size of calcium carbide shall first be reduced to fine powder by pulverizer.  The pulverized carbide is then added though a gas tight hopper-valve arrangement to the acetylene gas generator in which the quantity of water used is sufficient to discharge the calcium hydroxide as lime slurry containing 85-90% water.  The temperature is kept below 90oc and 2 atm. the gas generator.

The impure acetylene (C2H2) from the generator is scrubbed with water.  The continuous supply of cooling water in to the scrubber is also used as a source of water for the reaction with carbide.  After the scrubber, the gas is purified and dried with iron-oxide and silica gel.        
The production process is environmental friendly. The by product slaked lime is used for construction purpose and PH adjustment in industry.

Main Equipments

  1. Water tank
  2. Carbide feed mechanism
  3. Carbide buffer
  4. Acetylene generator
  5. Pulverizer Scrubber
  6. Purifier
  7. Nitrogen cylinders
  8. Pumps
Blog Directory