Refining With Aqueous Alkaline Solutions TRIZ Cases
- Sulfur-Removal Treatment Composition With pH Control for Crude Oil
A sodium sulfide and hydroxide treatment cuts sulfur in crude oil by 50-65% while controlling pH to limit precipitate formation.
- Bio-Oil Upgrading With Ammonia for Single-Step Phase Separation
Gaseous ammonia neutralizes acidic bio-oil components and drives aqueous-organic phase separation in one step, improving storage and fuel value.