How Pyrolysis and Waste Biomass Tackle Methane and Carbon | Carba

Biomass waste is one of the largest unmanaged carbon flows, yet most climate solutions ignore it. This founder is turning landfills into carbon sinks using decentralized pyrolysis and biochar.Andrew Jones is the founder and CEO of Carba, a waste-to-value company converting biomass into permanent carbon removal. He studied catalytic fast pyrolysis and earned a PhD in chemical engineering from the University of California, Berkeley.Carba builds modular, decentralized systems that process biomass waste near aggregation points, producing biochar for landfill burial, methane reduction, and potential industrial uses.Here’s what we discussed:Site strategy that actually works – Targeting 10k–100k ton/year biomass hubs co-located with landfills to eliminate transport cost and preserve unit economicsLandfill use case, not theory – Biochar used as daily cover to (1) store carbon underground, (2) stimulate methanotrophs that oxidize methane, and (3) adsorb PFAS and other contaminantsReactor advantage – Custom molten-salt pyrolysis system vs rotary kilns, enabling tighter temperature control, higher carbon yield, and more consistent biochar quality at throughputCarbon permanence bet – Converting cellulose/lignin into stable aromatic carbon structures that resist microbial decay, especially in anaerobic landfill conditionsRevenue stack reality – Tipping fees exist but small; real upside is durable carbon credits, with optionality in steel, concrete, asphalt, tires, and filtration depending on local demand--Join our confidential CEO community.Private CEO group for VC/PE-backed climate tech founders navigating capital, strategy, and scale. Capped at 45 CEOs. See if you're a fit → entrepreneursforimpact.comJoin 40,000 professionals who get our newsletter.Climate tech finance, strategy, leadership. 2-min read. → entrepreneursforimpact.substack.comLeave a podcast review.If you got value, take 30 seconds and do the community a favor. It helps push more capital and talent toward scalable climate solutions.