What are the advantages of n-Butane Oxidation Maleic Anhydride?
2025-12-30
n-Butane Oxidation Maleic Anhydride
This process uses n-butane (from refinery gas, cracking gas, or oilfield associated gas) as raw material. Compared to traditional benzene-based processes, it offers advantages:
Lower raw material costs and less pollution: 1.1–1.2 t n-butane per ton of maleic anhydride (vs. 1.1–1.3 t benzene for the benzene process).
Higher theoretical yield: 1:1.69 (n-butane:maleic anhydride) vs. 1:1.256 (benzene:maleic anhydride).
Reduced consumption (with technological advances), lower toxicity (vs. benzene), and less environmental impact.
As global environmental pressure increases, the n-butane process is more sustainable than the benzene process—now accounting for over 80% of global capacity, with growing adoption.













