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- Thai Sugar Mill Group
Industry
Agro-industrial sector
Challenge
Reduce CO₂ emissions generated from molasses fermentation—a byproduct of sugar manufacturing.
Solution
Pentair Recovery Based Unit (RBU)
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 building a sustainable society for future generations. 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 the CO₂ emissions generated from molasses fermentation—a byproduct of sugar 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 via our distributor, I-Born Supply and Service Ltd., to implement the first bio-CO2 capture plant in the Thai sugar industry.
The plant recovers raw CO₂ from the sugarcane molasses fermentation process and purifies it for industry reuse. 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 CO₂ Scrub system. Unlike conventional CO₂ purification methods that rely on 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 reflects a growing commitment to sustainable industrial practices in Southeast Asia. The plant helps reduce greenhouse gas emissions and aligns with Thailand’s broader climate goals. With an initial production capacity of 120 tons per day and plans for future expansion, TSM is preparing to meet the growing demand for sustainable CO₂ both locally and internationally.
Related Products
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CO2 Extraction/Generation for Soft Drink Bottlers
Pentair provides reliable and high-performing CO₂ extraction and generation solutions for soft drink bottlers, ensuring a consistent supply of purified, food-grade CO₂.
