Production Hub
Map of notes on how biochar is made, what feedstock and process choices control, and how material quality is judged before application or credit issuance. Sits between raw biomass and the science of permanence / agronomy / markets. Report context: 2026-09-16.
Domain purpose
Production is the controllable step that turns biomass into a carbon-rich solid. Peak temperature, residence time, heating rate, reactor type, and feedstock chemistry jointly set:
- Mass yield of char vs oil/gas
- Carbon content and aromatic condensation (persistence proxies such as H/C_org, O/C_org)
- Ash, nutrients, pH, porosity, and contaminant risk
Credit programs and product standards (EBC/IBI, CSI, Puro, Verra, Isometric) all depend on production data and lab characterization—see MRV Stack and Contaminants and Quality.
Notes in this folder
| Note | Role |
|---|---|
| Production | Spine: modes, FC examples, process→property summary |
| Pyrolysis Systems and Temperatures | Reactors, T classes, residence, energy/emissions |
| Feedstocks | Taxonomy, logistics, sustainability screens |
| Woody vs Manure Ag Feedstocks | FC/ash/nutrient/eligibility contrast |
| Biochar Quality from Process | Process levers → H/C, pH, SA, contaminants |
| Gasification Residues | High-ash gasifier solids and accounting |
| Properties | Aromatic C, H/C_org, O/C_org, porosity, pH, CEC; EBC/IBI thresholds |
| Biochar vs Activated Carbon | Where activation changes the material: surface area, cost, carbon accounting, credit rules |
| Contaminants and Quality | Hub for PAH, metals, PFAS, testing standards |
| PAHs · Heavy Metals and Ash · PFAS · Testing EBC IBI S668 | Contaminant deep chapters; PFAS covers feedstocks, process mass balance, soils, testing, and regulation |
Cross-links to science & markets
- Permanence science: Permanence cluster (H/C, Woolf/IPCC, Ro/HyPy, soil T, debates)
- Credit permanence interpretations: Permanence Science for Credits (do not duplicate method text here)
- Product standards: Product Standards EBC IBI · standardizes biochar lab testing
Primary links
- IPCC 2019 biochar appendix · estimates soil C stock change from biochar
- Bilias et al. 2024 IUPAC · IUPAC biochar terminology
- Keiluweit et al. 2010
- models soil GHG from biochar (DOI)
- EBC 10.5E PDF · IBI
- ANSI S668 PDF
See also
- Science Hub — permanence, definition, CDR accounting
- Applications Hub — where char goes after production
- Carbon Markets Hub — how production evidence supports credits
- Product Standards EBC IBI — product certification vs carbon methodologies
- Key Sources · Biochar Home