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- Thai Sugar Mill Group
Industry
Agro-industrial sector
Challenge
CO₂ emissions generated from molasses fermentation—a byproduct of sugarcane manufacturing.
Solution
Pentair CO2 Capture Plant
Results
Has a capture capacity of 120 tons of CO2 per day.
BACKGROUND
Thai Sugar Mill Group (TSM Group), a leading sugar producer in Thailand, is committed to enriching happiness for a sustainable society. Their operations are deeply rooted in circular economy principles, aiming to maximize the value of natural resources while minimizing environmental impact.
As part of their ethanol production process, TSM Group sought a way to capture and repurpose CO₂ emissions generated from molasses fermentation—a byproduct of sugarcane manufacturing. Their goal was to reduce greenhouse gas emissions and create a sustainable CO₂ source for industrial use.
THE SOLUTION
TSM Group partnered with Pentair Union Engineering via our distributor, I-Born Supply and Service Ltd., to implement Thailand’s first Sustainable Bio CO₂ Capture Plant. The plant captures raw CO₂ from the fermentation process and purifies it for reuse across various industries. This plant is a key component of TSM’s circular economy strategy, turning waste into value while promoting environmental stewardship. The raw gas from fermentation contains a high concentration of CO₂ (typically 95–99%) but may also include impurities such as hydrocarbons, NOx, sulphur compounds, alcohols, and oxygenates. To address this, Pentair designed a highly customized Union plant in close collaboration with TSM, optimizing both capital and operational expenditures.
The purification process integrates several proprietary and patented technologies, including the CO₂Scrub system. Unlike conventional fermentation-based CO₂ purification methods that rely on drinking water, CO₂Scrub uses a completely water-free process, significantly reducing environmental impact. It effectively removes high-boiling-point impurities, ensuring the final product exceeds food-grade CO₂ standards.
The Impact
TSM Group’s adoption of bio CO₂ capture has set a new benchmark for sustainable industrial practices in Southeast Asia. The plant significantly reduces greenhouse gas emissions and supports Thailand’s broader climate goals. With an initial production capacity of 120 tons per day and plans for future expansion, TSM is well-positioned to meet growing demand for sustainable CO₂ both locally and internationally.
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