From Farm to Furnace: How Pellexion Turns Gujarat’s Agro-Waste into Premium Biomass Pellets

A complete behind-the-scenes look at Pellexion Bio Energy’s 5-step process of converting Gujarat’s agricultural residues — cotton stalks, groundnut shells, and mustard husk — into certified 4200–4600 Kcal/kg industrial biomass pellets.

Every Pellexion biomass pellet begins not in a factory — but in Gujarat’s farmlands. The cotton fields of Ahmedabad district, the groundnut farms of Saurashtra, the mustard fields of North Gujarat: these are the true origins of our fuel.

India produces over 500 million tonnes of agricultural waste every year. A large portion of this is burned openly in fields, contributing to air pollution, soil degradation, and carbon emissions. Pellexion Bio Energy transforms this waste liability into a premium, certified, renewable energy source for Indian industries.

The journey from agricultural residue to certified industrial fuel at Pellexion involves five precise manufacturing steps, each designed to maximize the Gross Calorific Value (GCV) while minimizing ash content and moisture — delivering the cleanest, most efficient biomass fuel for your boiler, furnace, or thermal plant.

Pellexion Bio Energy procures agricultural residues directly from farmer cooperatives and aggregators across Gujarat. Our procurement team evaluates every incoming feedstock for three critical parameters before accepting it into our production chain:

This strict incoming quality control is what separates premium pellets from ordinary biomass fuel. Let’s look at the four primary raw materials Pellexion uses:

Raw agricultural residue arrives at our facility in large, irregular bulk forms — baled stalks, loose shells, wood chips in various sizes. Before any further processing can happen, this material must be reduced to a uniform particle size of 3–5mm.

Pellexion’s pre-processing stage uses:

Consistent particle size is absolutely critical for the next step: uniform die extrusion in the pellet press. Irregular particle sizes result in uneven density, weak pellets, and inconsistent GCV — exactly what we prevent at this stage.

This is arguably the most important step in the entire biomass pellet manufacturing process. Incoming biomass from the field can carry 20–35% moisture — far too high for efficient pellet production or combustion.

High moisture content causes two major problems:

Pellexion’s rotary drum dryers use controlled, calibrated heat to reduce incoming moisture to strictly below 10%, with our target being 8–9% moisture. Our team maintains detailed batch records of pre-drying and post-drying moisture levels for every production run, ensuring complete quality traceability.

The heart of Pellexion’s manufacturing process is the ring-die pellet press. Dried, ground biomass is fed into the press under high pressure of 100–150 MPa and moderate temperature.

Here is where the science of pelletisation becomes remarkable:

The result: dense, hard, cylindrical pellets with bulk density exceeding 650 kg/m³ — significantly denser than loose biomass, easier to store, transport, and feed into automated boiler systems.

Before a single bag or bulk consignment leaves Pellexion’s facility, every production batch undergoes rigorous quality sampling in our in-house laboratory.

Each batch is tested for all of the following parameters:

Batches that pass all five parameters are cleared for dispatch with a Certificate of Analysis (CoA) — your documented proof of fuel quality for every order. Sub-standard batches are reprocessed or rejected, never dispatched.

Gujarat is uniquely positioned as India’s premier source of high-quality biomass raw material. Here’s why:

Pellexion Bio Energy supplies premium biomass pellets to a wide range of thermal-intensive industries across Gujarat and India: