Punarva Bio
Punarva Bio

Carbon, renewed.

We are building a modular pathway to turn industrial off-gases into fuel ethanol, bringing carbon utilisation opportunities to India's steel and ferroalloy clusters.

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Select Step 1, 2 or 3 to explore the process

The carbon is already there.

Steel and ferroalloy plants release carbon-rich gas. Today it may be burned, flared or used for heat inside the plant.

Modular fermentation renews the carbon.

Specialised microbes in a liquid medium use suitable gas as their feedstock. Every site is assessed before anything is decided.

Ethanol is distilled per requirement.

A product for petrol blending and other qualified uses. Process and yields depend on the technology and on each plant.

The carbon is already there. The opportunity is to put it to work.

Some steel and ferroalloy plants generate carbon-rich off-gases. Today these may be combusted, flared or used inside the plant for heat and power. Under suitable conditions, the same gases can be the feedstock for gas fermentation, a biological process that turns carbon monoxide, carbon dioxide and hydrogen into ethanol.

Punarva Bio's ambition is to make this approach practical for smaller industrial sites, through modular facilities and a deployment model that can be repeated from plant to plant.

From industrial off-gas to fuel ethanol.

Five stages, from a plant's own gas to a product a buyer can use. Select a stage to see what it involves and what decides it.

Industrial source

Candidate sources include off-gas from furnaces and kilns used in steel and ferroalloy production. Which streams qualify depends on what is in the gas, how much of it there is and how steadily it flows.

What decides it

  • Share of carbon monoxide, carbon dioxide and hydrogen in the gas
  • Volume, and how steady the flow is across a day and a season
  • How the plant uses the gas today, such as heat or power

Process configuration, gas requirements and product yields depend on the selected technology and on conditions at each plant. This page describes an approach, not a performance guarantee.

Start with one. Scale across a cluster.

Our model is a plan, not a record. The diagram shows how one carefully assessed site could lead to a repeatable design and, in time, to several plants in one region.

Industrial region Anchor siteAssess, then build Replica Replica Site Site Site

Illustrative. Punarva Bio is an early-stage venture and this shows our planned approach, not completed projects.

Read the full model

Built around industrial realities.

This is how we intend to work. It describes our approach and objectives, not proven performance.

Modular by design

Explore configurations suited to smaller industrial sites.

Industry-first execution

Prioritise site integration, operational practicality and engineering discipline.

Partnership-led technology

Work with appropriate technology providers and engineering partners.

Repeatable deployment

Develop a model that can be adapted across suitable industrial clusters.

Connecting industrial carbon with fuel markets.

Fuel ethanol is our initial focus. It has established blending and distribution channels, so a plant's carbon can reach a market that already exists.

Gas sources

Steel manufacturing facilities
Ferroalloy manufacturing facilities
Industrial clusters with compatible gas streams

Conversion infrastructure

Modular gas-fermentation units

  • Gas conditioning
  • Fermentation
  • Ethanol recovery

Potential buyers

Fuel-blending participants
Ethanol supply chain and logistics
Other qualified applications

  • Steel manufacturing facilities

    Plants with process gas rich in carbon monoxide or hydrogen may suit gas fermentation after assessment.

  • Ferroalloy manufacturing facilities

    Some ferroalloy furnaces give off carbon-rich gas. Its use depends on composition and how steadily it is produced.

  • Industrial clusters

    Plants near each other could share one design, one operating approach and one route to market.

  • Ethanol supply chains

    Fuel ethanol moves through established blending and distribution channels, to buyers that meet the required standards.

We do not publish market sizes, yields or cost figures here. They will be shared only once they are supported by site data and partner validation.

Industrial experience. Entrepreneurial ambition.

Portrait of Avinash Ravi, Co-Founder of Punarva Bio

Avinash Ravi

Co-Founder

With over 20 years of experience in the pharmaceutical industry, Avinash brings deep expertise in fermentation, chemical and food processing. Having successfully established greenfield manufacturing plants and led the design and construction of state-of-the-art fermentation facilities, his work has included collaborations with multinational companies on joint technology development and the commercial implementation of innovative products.

Portrait of Sumanth Karlapudi, Co-Founder of Punarva Bio

Sumanth Karlapudi

Co-Founder

A Chartered Accountant with 14 years of consulting experience at EY India and over five years in the pharmaceutical industry, Sumanth brings expertise in corporate finance, strategy, governance, fundraising and operational scaling. His financial leadership will be critical in securing growth capital, strengthening governance and executing Punarva Bio's vision.

A complementary founding team.

Punarva Bio is led by a founding team that combines deep technical expertise with financial discipline. Their joint experience in pharmaceutical manufacturing, industrial scale-up, capital planning and governance supports our goals. Together, supported by a skilled scientific and engineering team, they bring the technical, operational and commercial capability needed to carry out Punarva Bio's plan over the next five to ten years. Read our story

The transition is built together.

Punarva Bio seeks to engage with five kinds of partner. Each has a role in turning an off-gas stream into a product a buyer can use.

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Steel and ferroalloy producersPlants with carbon-rich off-gas that may suit gas fermentation.Gas-fermentation technology providersLicensors of proven gas-fermentation processes.Engineering and plant-integration partnersDesign, procurement, construction and site integration.Ethanol offtakers and fuel-market participantsBuyers and distributors of fuel ethanol.Strategic and infrastructure investorsLong-term capital for industrial decarbonisation.

Have an industrial gas stream worth exploring?

Let's assess whether your site could support a modular gas-fermentation opportunity.

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