PySAF: Biogenic Refinery Co-Feed for Sustainable Aviation Fuel
Refining the biogenic molecule into sustainable aviation fuel.
Partner with PySAFFeed to fuel
We integrate, we don't disrupt. PySAF does not build pyrolysis plants or refineries. We own the step that connects them.
PyXCrude
Lipophilic/phenolic bio-crude fraction targeting SAF via FCC co-processing and hydroprocessing.
PyXSugra
Aqueous C5/C6 sugar fraction targeting bio-hydrogen, biomethane, and bio-based polymers.
FeedstockCertified biomass residues
Certified, sustainable lignocellulosic residues sourced through feedstock partners. Non-lipid, so it expands rather than competes with constrained lipid feedstocks.
Fast pyrolysisEstablished technology
Commercial fast pyrolysis converts biomass to bio-oil in seconds. PySAF is technology-agnostic and works with proven pyrolysis suppliers.
PySAF conditioningThe licensed step
Our patent-pending bio-crude processing platform controls the failure modes upstream, stabilising the oil and stripping the contaminants that block refinery acceptance. This is the IP we license.
Refinery insertionFCC & hydroprocessing / HEFA
PyXCrude enters existing refinery infrastructure as a biogenic co-feed, targeting 80 to 90% GHG reduction with no billion-dollar new-build plants.
Sustainable feedstock
Carbon that grew this season, refined for the sky.
PyXCrude · Representative analysis
Numbers a refiner can read.
Validated at batch scale, January 2026. Selected properties from internal analysis of PyXCrude versus typical raw fast pyrolysis oil.
Heating value (HHV)
0MJ/kg
vs ~17 MJ/kg typical raw bio-oil
Water content
0wt%
vs 20 to 30% in raw bio-oil
Metals removed
0%
protecting downstream catalyst life
Char fines
Nonedetected
filterable solids eliminated
SAF in flight
Drop-in molecules for the world's installed jet fleet.
Offtake routes
One feed, three insertion points.
FCC co-processing
Drop biogenic carbon into the largest installed conversion capacity in refining. No new-build capex on the refiner's side.
Renewable gasoline & distillateHydroprocessing & HEFA
A low-metals, low-water feed compatible with hydrotreating routes toward SAF-range paraffinic fuels.
Sustainable aviation fuelMarine & bio-intermediates
PyXSugra as a defined co-product stream, targeting marine fuels, bio-hydrogen, and bio-based chemicals.
Marine & bio-intermediatesDemand is legislated
Mandates, not forecasts.
10% SAF by 2030, rising to 22% by 2040 - with obligated suppliers needing eligible biogenic feeds at scale.
Binding EU blending obligations from 2025, escalating through 2050 across all departing flights.
Global airline offsetting framework driving long-term demand for certified lower-carbon aviation fuel.
Business model
We license. Partners build.
PySAF is asset-light by design. Our value sits in the conditioning IP, the product specification, and the partner network that connects feedstock to refinery gate.
01Technology licensing
Process licences for the PySAF conditioning step, deployed at partner pyrolysis and refining sites.
02Commercialisation
PyXCrude as a defined, tradeable intermediate with a specification refiners can write into supply contracts.
03Project development
Structured programmes with feedstock, pyrolysis, and refining partners to qualify PyXCrude unit by unit.
About PySAF
Not built on a thesis. Built in reactors.
Sanjeev's work spans sustainable aviation fuel, hydrogen, and bio-crude technology development across the US and UK. He has personally built and operated continuous pyrolysis reactors, translating bench chemistry into refinery-relevant specifications. PySAF has filed its own patent applications, consolidating that experience into a single, licensable conditioning platform.
PySAF Ltd has filed 4 patent applications (pending).
"Two decades of knowing what breaks in biocrude, now applied to a refinery-compatible co-feed platform."
Ecosystem
Memberships, networks & partners.
PySAF is embedded in the UK and international cleantech, aviation and bioeconomy ecosystems - working alongside institutions, programmes and operators that accelerate the route from lab to refinery.
Roundtable on Sustainable Biomaterials (RSB)
Member
Oxfordshire Greentech
Member
Cambridge Cleantech
Member
National Climate Tech Accelerator (Barclays × Sustainable Ventures)
Tier 2 Member
Bio-based Industries Consortium (BIC)
Member
University of Hertfordshire Business Incubator
Cohort 22
SPARK 2.0 - King's Entrepreneurship Lab, Cambridge
Selected Cohort
Topsoe
Terravesta
Imperial College London
University of Oxford
University of Liverpool
Cardiff University
University of Surrey
Newcastle University
UCL
Cranfield University
University of Cambridge
Aston University
PyroGenesys
Whittle & Flame Wood Distillery
C-Source Renewables
Amelia Space Technologies
CatalysisHubLatest updates
In the press & recent milestones.
Coverage, announcements and progress from PySAF as the platform moves from laboratory to first modular fractionation unit.
PySAF to speak at Next Steps for Aviation Decarbonisation conference
PySAF will join policymakers and industry stakeholders at the Westminster Energy Forum online conference examining SAF production and deployment, the UK SAF Mandate, the Revenue Certainty Mechanism, and wider measures in the Sustainable Aviation Fuel Act 2026.
westminsterforumprojects.co.ukPySAF named a 2026 Stephen Lloyd Awards Finalist
PySAF has been shortlisted as a 2026 Stephen Lloyd Awards finalist — recognising bold, ambitious changemakers with powerful ideas in sustainability and social impact.
stephenlloydawards.orgHow PySAF is turning bio-crude into sustainable aviation fuel
Innovation News Network features PySAF's proprietary fractionation platform — splitting fast pyrolysis bio-crude into PyXCrude™ (a hydrotreater-ready SAF blendstock precursor) and PyXSugra™ (a fermentable C5/C6 sugar stream). Technology reached TRL 5 in January 2026; seed round now open.
innovationnewsnetwork.comPySAF speaks at BECCS & BECCUS for Net-Negative Emission Technologies Workshop
PySAF joined academic researchers, industry leaders, and policymakers at the University of Glasgow for the BECCS & BECCUS workshop, exploring bioenergy with carbon capture, utilisation and storage in the transition to net-negative emissions.
supergen-bioenergy.netPySAF presents at the Industry Forum on Sustainable Aviation Fuel
PySAF presented at the Supergen Bioenergy Hub Industry Forum at the University of Sheffield, joining stakeholders across academia and industry to examine the full SAF value chain — from feedstock supply to fuel production, technology challenges, and sustainability questions.
supergen-bioenergy.netPySAF presents Next Generation Biomass Biocrude at Sustainable Skies
Dr Sanjeev Gajjela presented PySAF's next-generation biomass biocrude platform at Sustainable Skies, demonstrating how agricultural and forestry residues are converted into refinery-ready intermediates for sustainable aviation fuel, marine fuels, chemicals, and advanced materials.
sustainableskies.co.ukJoin our journey
Building the future of
sustainable aviation.
Refiners, pyrolysis operators, feedstock owners, and investors: we run structured evaluation programmes under NDA — from sample analysis to co-processing trials.
UK cleantech developing PyXCrude — a stabilised biogenic refinery co-feed for FCC co-processing and hydroprocessing routes to sustainable aviation fuel.
Contact
Registered Office
Unit A119, 4–6 Greatorex Street
London E1 5NF
United Kingdom