🌱 CST EnviroTech Integrated Biomass–Hydrogen Steam & Energy System for Laundry Applications

CST EnviroTech’s Integrated Biomass–Hydrogen Steam & Energy System for Laundry Dryer Applications is a high-efficiency renewable energy platform designed to deliver steam, hot air, and electrical power while maximizing energy utilization and minimizing waste. In this system, biomass or MSW briquettes are converted in a gasifier into clean combustible producer gas (CO, H₂, CH₄), with ash safely separated as residue. The raw gas is purified in a tar separation unit to remove heavy hydrocarbons and particulates before being supplied to an IC engine–alternator for electricity generation.

The electricity generated is utilized within the plant, particularly to operate an alkaline electrolyser that produces hydrogen. The hydrogen is blended back into the engine fuel stream to enhance combustion quality and increase overall energy extraction efficiency. Oxygen generated during electrolysis can be safely vented or used for auxiliary applications.

Simultaneously, the high-temperature engine exhaust (~550°C) is captured in a Heat Recovery Boiler (HRB), where incoming water is converted into steam. This steam is distributed to multiple tumble dryers (TD1–TD6), providing controlled thermal energy for industrial laundry drying operations. After heat transfer, condensate is collected and managed for reuse, improving water efficiency.

In addition to exhaust heat recovery, energy from the engine jacket water system is also harnessed, further improving the plant’s overall thermal efficiency. The result is a fully integrated system that delivers electricity, hydrogen enrichment, steam, and process heat from the same biomass input — reducing fossil fuel dependency, lowering operating costs, and creating a sustainable and self-reliant energy solution for large-scale laundry and textile facilities.