• The Basic building Block Processes:-

Petrochemical industry is based on intermediates Known Petrochemical Processes: Thermal cracking; catalytic cracking and steam reforming:-

Thermal Cracking:-

• It is known as steam cracking is used for manufacture of ethylene.
• Feed stock’s – ethane, propane, naphtha and gas oils.
• When ethane is cracked → ethylene
• Propane →  propane + co-product
• Naphtha and gas oil  → propylene, butane, butadiene and aromatic compounds.

Catalytic reforming

• Used for making BTX.
• Feedstock: naphtha

Steam reforming

• Used for producing a mix of CO and H₂.
• Intermediate for making NH₃, CH₃OH