Catalytic hydrothermolysis (CHJ)
Sustainable aviation fuel made by treating fats and oils with water at high temperature and pressure and refining the product. Approved in 2020; a few plants are planned.
The fuel
- Class
- Sustainable aviation fuel
- Specification
- ASTM D7566 Annex A6
- Status
- approved; little made
- Blend limit
- 50% with fossil jet fuel
Connections how this fuel links to the rest of the register
The whole map of how records connect · these connections as data: /graph/fuel/chj.json.
Sources: FAA Civil Aviation Registry (November 2, 2026) for the engines and aircraft; the FAA airport master file for fuel sold; the FAA's supplemental type certificate listings for the approvals; SAFxCHANGE's record for the plants, deals and the airports named in the news; the sellers' own websites where named. Specifications as published by ASTM International and the U.S. military. The fuel makers' own pages say where their fuel is sold this month; this page is as current as those records.