🌱 CST EnviroTech Integrated Biomass–Hydrogen Steam & Energy System for Milk Processing Plants

CST EnviroTech’s Integrated Biomass–Hydrogen Steam & Energy System for Milk Processing Plants is a multi-utility renewable energy platform designed to simultaneously deliver steam, process heat, cooling support, and electrical power while maximizing energy efficiency and minimizing fuel waste. In this system, biomass or MSW briquettes are converted in a gasifier into clean combustible producer gas (CO, H₂, CH₄), with ash separated safely as residue. The gas is cleaned in a tar separation unit before being supplied to an IC engine–alternator for reliable on-site power generation.

The electricity generated supports plant operations and drives an alkaline electrolyser that produces hydrogen. This hydrogen is blended back into the engine fuel stream to enhance combustion efficiency and increase total energy extraction from the biomass input. Oxygen generated during electrolysis can be safely vented or utilized for auxiliary applications.

The engine exhaust, typically at approximately 550°C, is captured in a Heat Recovery Boiler (HRB), where feedwater is converted into steam. This steam is distributed to key milk-processing operations such as pasteurization, spray drying, and fluidized bed drying (FBD). After use, condensate is collected for reuse, improving overall water efficiency and reducing fresh water demand.

In addition to exhaust heat recovery, thermal energy from the engine jacket water system is also harnessed. This recovered heat can assist in maintaining process temperatures or support ancillary heating requirements. Where cooling is required—such as maintaining chilled milk temperatures (e.g., 7°C to 12°C)—the system’s integrated power supply ensures stable operation of chillers and refrigeration units.

The result is a fully integrated energy solution that provides electricity, hydrogen enrichment, steam, and thermal support from the same biomass input. By replacing conventional fossil fuels and reducing dependency on grid electricity, the system enhances operational reliability, lowers energy costs, and supports sustainable dairy processing aligned with modern environmental standards.