Sulfuric Anhydride Production by the Contact Process

This report provides an extensive cost evaluation of sulfuric anhydride production by the contact process. The process is initiated by the oxidation of sulfur obtained from coal. It is oxidized to produce sulfur dioxide, which is again oxidized on heating in the presence of a catalyst, such as vanadium oxide. The reaction leads to the oxidation of sulfur dioxide and results in the formation of sulfur trioxide, which is also known as sulfuric anhydride as the final product.

Top Producers of Sulfuric Anhydride

• Suzhou Jingrui Chemical Co. Ltd.
• Longsheng Group
• Aarti Industries
• Chung Hwa Chemical Industrial
• Atul Ltd.

Feedstocks for Sulfuric Anhydride

Sulfuric anhydride or sulfur trioxide is a chemical oxide of sulfur and is prepared by using sulfur and oxygen as its major feedstocks. The procurement of sulfuric anhydride is dependent upon factors such as the availability of its feedstocks (including coal, sulfur, oxygen, etc., for sulfur trioxide or sulfuric anhydride), the production cost of sulfuric anhydride along with its feedstocks (including sulfur and oxygen), logistics and transportation activities, etc. Moreover, other factors such as its demand in the chemical industry (as an oxide of sulfur), market prices, extraction cost of coal (feedstock for sulfur production), stability in the supply chain, trade, and governmental policies have a major impact on its procurement process.

The project economic analysis provided in the report discusses a Germany-based plant:

• Manufacturing Process
  • Process Flow
  • Material Flow
  • Material Balance
• Raw Material and Product's Specifications
  • Raw Material Consumption
  • Product and Co-Product Generation
  • Capital Investment
• Land and Site Cost
  • Offsites/Civil Works
  • Equipment Cost
  • Auxiliary Equipment Cost
  • Contingency
  • Engineering and Consulting Charges
  • Working Capital
• Variable Cost
  • Raw Material
  • Utilities
• Fixed Cost
  • Labor Requirement & Wages
  • Overhead Expenses
  • Maintenance Charges
• Financing Costs
  • Interest on Working Capital
  • Interest on Loans
• Depreciation Charges
• General Sales and Admin Costs
• Production Cost Summary