co-feed candidates scored
Docker-Generated Co-Feed Screen
Co-Feed Blend Lab
A 3D blend lab for comparing food waste, FOG, beverage residues, digestate, algae, manure, glycerol, green waste, and plastic watch items as sewage-sludge HTL co-feeds.
top individual co-feed
top blend scenario
plastic watch items kept out of the first blend
Best first co-feed campaign. Combines wet-organic availability, lipid H/C lift, and low-ash beverage residues without relying on plastic carbon.
Source-separated food waste glucose
Recent sludge plus food-waste co-HTL work makes mixing ratio and severity a direct lever for biocrude yield and aqueous-phase nitrogen.
Seasonal composition, salt, packaging contamination, COD in the aqueous phase, wet logistics, and whether yield gains survive at pilot residence time.FOG / grease-trap waste oleic acid
Lipid-rich wet wastes raise H/C and dilute sludge nitrogen and ash, making them strong quality improvers when emulsification and collection are controlled.
Stable feed pumping, free-water split, sewer contaminants, FOG availability, emulsification energy, and whether high-lipid blends coke during upgrading.Brewery / beverage waste ethanol
Sewage sludge plus brewery and winery residues has published co-HTL evidence for synergistic product yield and energy-content effects.
Local waste volume, pH swings, residual cleaning chemicals, solids handling, and whether alcohol/carbohydrate fractions change aqueous treatment load.The Docker selection model picks FOG / grease-trap waste + Source-separated food waste + Brewery / beverage waste as the first organic co-feed blend. Pyomo-formulated three-co-feed selection with lipid, food/beverage, dry-blend, contaminant-risk, and oxygen-penalty gates; plastic feeds are visible as watch items but excluded from the first organic bench blend.
Current co-feed decision
Use wet organics and lipids first; keep plastics as boundary tests
The generated screen ranks FOG and grease-trap waste first because lipid-rich co-feeds can raise H/C, dilute nitrogen, and improve oil quality without making the plan depend on plastic carbon. The best first blend combines food waste, FOG, and beverage residues. Plastic fractions stay visible as watch items because chlorine, additives, microplastics, and carbon accounting can erase the benefit.
Best first co-feed campaign
65.6Food waste + FOG + beverage waste
Combines wet-organic availability, lipid H/C lift, and low-ash beverage residues without relying on plastic carbon.
- Blend
- 42% dry co-feed
- Yield estimate
- 26.9% dry feed
- N/O estimate
- 4.48/15.35 wt%
- Risk
- 30.7
High-quality organic branch
61.7Food waste + food-processing grease
Targets oil quality and nitrogen dilution if a reliable industrial lipid stream exists near the wastewater plant.
- Blend
- 36% dry co-feed
- Yield estimate
- 26.3% dry feed
- N/O estimate
- 4.63/15.42 wt%
- Risk
- 33
Hydrocarbon boost watch item
56.7Food waste + PE/PP film
Can improve H/C, but plastic sorting, additives, chlorine exclusion, and carbon-accounting questions dominate.
- Blend
- 24% dry co-feed
- Yield estimate
- 25.7% dry feed
- N/O estimate
- 4.89/15.2 wt%
- Risk
- 50
Infrastructure-aligned municipal branch
53.9Food waste + OFMSW digestate
Uses local organic waste infrastructure but needs grit, salts, packaging contamination, and aqueous load controls.
- Blend
- 45% dry co-feed
- Yield estimate
- 26.2% dry feed
- N/O estimate
- 4.93/16.35 wt%
- Risk
- 38
Biogenic discovery branch
51.5Food waste + microalgae
Wet-biomass compatible, but algae cost and nitrogen transfer keep it behind waste-derived lipid routes.
- Blend
- 35% dry co-feed
- Yield estimate
- 25.6% dry feed
- N/O estimate
- 5.31/15.7 wt%
- Risk
- 29
Do-not-promote boundary case
25.5PET + polyamide textile boundary
Useful as a contaminant sensitivity case because oxygenated and nitrogen plastics can worsen oil quality and catalyst risk.
- Blend
- 8% dry co-feed
- Yield estimate
- 24.2% dry feed
- N/O estimate
- 5.46/15.97 wt%
- Risk
- 81
Generated organic blend
Pyomo-gated co-feed selection
FOG / grease-trap waste
Stable feed pumping, free-water split, sewer contaminants, FOG availability, emulsification energy, and whether high-lipid blends coke during upgrading.
Source-separated food waste
Seasonal composition, salt, packaging contamination, COD in the aqueous phase, wet logistics, and whether yield gains survive at pilot residence time.
Brewery / beverage waste
Local waste volume, pH swings, residual cleaning chemicals, solids handling, and whether alcohol/carbohydrate fractions change aqueous treatment load.
Candidate ledger
Co-feed quality, contaminant risk, and RDKit proxy chemistry
Lipid-rich co-feed64.4
FOG / grease-trap waste oleic acid
Lipid-rich wet wastes raise H/C and dilute sludge nitrogen and ash, making them strong quality improvers when emulsification and collection are controlled.
- Max blend
- 20%
- H/C proxy
- 1.89
- N dilution
- 94
- Risk
- 36
Wet organic co-feed57.6
Source-separated food waste glucose
Recent sludge plus food-waste co-HTL work makes mixing ratio and severity a direct lever for biocrude yield and aqueous-phase nitrogen.
- Max blend
- 40%
- H/C proxy
- 2
- N dilution
- 76
- Risk
- 32
Carbohydrate-alcohol co-feed56.8
Brewery / beverage waste ethanol
Sewage sludge plus brewery and winery residues has published co-HTL evidence for synergistic product yield and energy-content effects.
- Max blend
- 30%
- H/C proxy
- 3
- N dilution
- 82
- Risk
- 24
Industrial lipid residue55.2
Food-processing grease residue palmitic acid
Food-processing lipid residues are a higher-quality branch than mixed food waste when supply is available and contamination is controlled.
- Max blend
- 18%
- H/C proxy
- 2
- N dilution
- 92
- Risk
- 34
Plastic carbon co-feed50.4
Clean PE/PP polyolefin film dodecane
Synthetic polymer HTL work shows polyolefins can shift product carbon toward hydrocarbon-like oils, but mixed plastic sorting is the gate.
- Max blend
- 10%
- H/C proxy
- 2.17
- N dilution
- 96
- Risk
- 68
Oxygenated liquid co-feed40.7
Crude glycerol glycerol
Glycerol-assisted liquefaction is an adjacent donor/solvent lead, but glycerol oxygen and crude-glycerol salts can move burden to the aqueous phase.
- Max blend
- 15%
- H/C proxy
- 2.67
- N dilution
- 84
- Risk
- 40
Municipal organic digestate37.8
OFMSW digestate acetic acid
Municipal organic digestate is infrastructure-aligned with wastewater sites and can be routed through HTL or sequential digestion/HTL branches.
- Max blend
- 35%
- H/C proxy
- 2
- N dilution
- 50
- Risk
- 44
Cellulosic wet solid36
Green / lignocellulosic waste cellulose monomer proxy
Green waste can dilute nitrogen but often brings oxygen-rich solids that reduce oil quality unless severity or co-solvent strategy is tuned.
- Max blend
- 25%
- H/C proxy
- 2
- N dilution
- 88
- Risk
- 26
Protein-lipid wet biomass35.1
Microalgae / chlorella slurry alanine
Pilot and experimental co-liquefaction work with algae and sewage sludge demonstrates wet-biomass compatibility but does not solve nitrogen by itself.
- Max blend
- 25%
- H/C proxy
- 2.33
- N dilution
- 24
- Risk
- 26
Oxygenated plastic risk feed31
PET / polyester fibers dimethyl terephthalate
PET-like oxygenated plastics can add aromatic/carboxyl chemistry and should be treated as a contaminant boundary rather than a preferred co-feed.
- Max blend
- 6%
- H/C proxy
- 1
- N dilution
- 90
- Risk
- 84
Agricultural wet waste26.2
Swine manure solids urea
Wet-waste TEA/LCA models manure beside sewage sludge and food waste, making it useful as a regional branch even when fuel quality is harder.
- Max blend
- 30%
- H/C proxy
- 4
- N dilution
- 16
- Risk
- 52
Nitrogen plastic risk feed23.5
Polyamide / PUR textile fraction caprolactam
Polyamide and polyurethane can raise oil yield in polymer co-HTL screens but push nitrogen-containing molecules into the oil.
- Max blend
- 5%
- H/C proxy
- 1.83
- N dilution
- 8
- Risk
- 78
cofeed-food-sludge-2026
Effect of severity and mixing ratio of sewage sludge and food waste on biocrude yield via hydrothermal co-liquefaction
2026 sludge plus food-waste co-HTL work directly frames severity and mixing ratio as yield and product-quality variables.
Open sourcecofeed-rsc-wet-waste-2026
Wet-waste HTL TEA/LCA with sewage sludge, manure, food waste, and upgrading strategy comparisons
2026 TEA/LCA context for comparing sludge, food waste, and manure feedstocks across marine, diesel, and SAF upgrading strategies.
Open sourcecofeed-beverage-sludge-2022
Co-hydrothermal liquefaction of sewage sludge and beverage waste for high-quality bio-energy production
Brewery and winery residues co-liquefied with primary and return activated sludge to evaluate synergistic product effects.
Open sourcecofeed-algae-residues-2021
Hydrothermal co-liquefaction of chlorella with food processing residues, green waste, and sewage sludge
Bench co-liquefaction data for algae mixtures with sewage sludge and other biogenic wastes.
Open sourcecofeed-ofmsw-digestate-2025
HTL of digestate from the organic fraction of municipal solid waste
2025 digestate HTL optimization context for municipal organic waste branches near wastewater infrastructure.
Open sourcecofeed-solid-fecal-2025
Integrated anaerobic co-digestion and HTL of organic solid waste and fecal sludge
Sequential organic-solid-waste/fecal-sludge integration lead for energy recovery and product slate thinking.
Open sourcecofeed-polymer-screen-2021
Screening common synthetic polymers for depolymerization by subcritical HTL
Polymer HTL screen that supports treating plastics as high-carbon watch items with sorting and additive risks.
Open sourcecofeed-polymer-miscanthus-2021
Co-HTL of synthetic polymers and Miscanthus: synergistic and antagonistic effects
Polymer co-HTL work showing some polymers boost oil yield while PET and nitrogen plastics can worsen oil chemistry.
Open sourcecofeed-food-saf-2025
Food waste to SAF through pretreated HTL biocrude and CoMo catalysis
Food-waste HTL upgrading context for why lipid/food-waste co-feeds can be valuable but still need severe product qualification.
Open sourcecofeed-sludge-review-2025
Municipal sludge HTL review: biocrude production and fuel-quality upgrading
Recent review emphasizing sludge moisture, oxygen, nitrogen, byproduct utilization, catalyst innovation, and blended process integration.
Open source