Optimize Alkaline Hydrolysis for Ammonia
Budget: $250 – $750 USD
I’m working on turning waste-protein streams into a quantifiable flow of ammonia gas and need a fresh set of eyes on the chemistry itself. The core task is process optimization: fine-tune the alkaline hydrolysis reactions so the conversion rate climbs, the reaction time drops, and the ammonia produced can be captured and measured with confidence.
Where things stand
• Bench-scale equipment is in place, and I can maintain stable temperature and agitation.
• Early runs show ammonia, but yields are inconsistent and the reaction sometimes stalls.
• I have log sheets of pH, NaOH/KOH loading, protein concentration, reaction time, and gas readings (Dräger tubes + basic NH₃ sensor).
What I need from you
• Review my current protocol and datasets, then pinpoint kinetic or stoichiometric bottlenecks.
• Propose specific changes—base concentration, buffering strategy, stage-wise additions, catalysts or co-solvents—that can raise ammonia output without creating inhibitory by-products for the downstream anaerobic digestion step.
• Supply a concise experimental plan (variables, run order, sampling frequency) so I can validate your recommendations in my lab.
• Summarise expected yields, safety notes for caustic handling, and any analytical methods (e.g., Nessler, ion-selective electrode, FTIR gas analysis) you deem essential for reliable quantification.
Acceptance criteria
1. A written optimisation report with rationale, equations and literature references.
2. A set of reaction parameters predicted to improve NH₃ yield by at least 20 % over my baseline.
3. A simple spreadsheet model to track mass balance and compare experimental runs.
If you have hands-on experience with waste-protein hydrolysis, ammonia stripping, or similar high-pH systems, I’m ready to start right away and will share all raw data once we agree on scope.
Where things stand
• Bench-scale equipment is in place, and I can maintain stable temperature and agitation.
• Early runs show ammonia, but yields are inconsistent and the reaction sometimes stalls.
• I have log sheets of pH, NaOH/KOH loading, protein concentration, reaction time, and gas readings (Dräger tubes + basic NH₃ sensor).
What I need from you
• Review my current protocol and datasets, then pinpoint kinetic or stoichiometric bottlenecks.
• Propose specific changes—base concentration, buffering strategy, stage-wise additions, catalysts or co-solvents—that can raise ammonia output without creating inhibitory by-products for the downstream anaerobic digestion step.
• Supply a concise experimental plan (variables, run order, sampling frequency) so I can validate your recommendations in my lab.
• Summarise expected yields, safety notes for caustic handling, and any analytical methods (e.g., Nessler, ion-selective electrode, FTIR gas analysis) you deem essential for reliable quantification.
Acceptance criteria
1. A written optimisation report with rationale, equations and literature references.
2. A set of reaction parameters predicted to improve NH₃ yield by at least 20 % over my baseline.
3. A simple spreadsheet model to track mass balance and compare experimental runs.
If you have hands-on experience with waste-protein hydrolysis, ammonia stripping, or similar high-pH systems, I’m ready to start right away and will share all raw data once we agree on scope.