Ultra-low Delta T technology enables rapid capacity growth without new boiler investment

Spray Engineering Devices Ltd. (SED) has set a new benchmark for sustainable industrial expansion by delivering a 2.5× capacity increase at Shri Dutt India Private Limited’s sugar refinery in Kandla—completed in under 12 months and without adding a single new boiler.

The project expanded refinery capacity from 1,000 tonnes per day (TPD) to 2,500 TPD, placing it among the fastest large-scale sugar refinery upgrades in India. Instead of capital-intensive utility additions, SED modernised existing infrastructure, demonstrating how advanced process engineering can unlock rapid, energy-efficient growth.

“This project proves that engineering innovation—not added utilities—is the cornerstone of sustainable industrial growth,” said Vivek Verma, Managing Director, SED. “Our latest batch crystallisation pans operate at extremely low Delta T, enabling Shri Dutt India to more than double output while retaining its existing steam generation capacity.”

At the core of the expansion is SED’s proprietary integration of Mechanical Vapour Recompression (MVR) with Honeycomb Calandria Batch Crystallisation Pans, operating at an industry-leading 20–25°C Delta T. The configuration maximises heat transfer efficiency, significantly cuts steam consumption, and lowers the refinery’s overall carbon footprint.

Jeetendra Dharu, Director, Shri Dutt India Private Limited, noted: “Completing a project of this scale from concept to commissioning in less than a year reflects exceptional coordination and SED’s ability to deliver under aggressive timelines.”

Project highlights include:

2.5× capacity expansion: from 1,000 TPD to 2,500 TPD

No new boiler investment: enabled through MVR-based system optimisation

Proprietary technology: Honeycomb Calandria Batch Pans at ultra-low Delta T

Fast-track execution: end-to-end delivery in under 12 months

Priti Ruparel of Shri Dutt India’s leadership team added, “This was a demanding project technologically and operationally. SED delivered a world-class refinery solution that sets a new standard for the sector.”

The project underscores a broader shift in heavy industry: sustainable scale is increasingly driven by smarter engineering, not larger energy footprints.