The Science Behind GT-BTX PluS™: Key Characteristics Driving Performance

Introduction

As environmental standards tighten and market dynamics evolve, refineries need solutions that are both advanced and adaptable. Sulzer’s GT-BTX PluS™ stands out with a science-driven, distillation-based process designed for simultaneous recovery of high-value aromatics (benzene, toluene, xylenes – BTX) and sulfur removal from FCC gasoline.

But what makes GT-BTX PluS™ technology truly unique? The answer lies in its technical features and engineering excellence.

What Sets GT-BTX PluS™ Apart?

1. Advanced Extractive Distillation Process

GT-BTX PluS™ utilizes precision-engineered two-column extractive distillation process that create optimal separation conditions for both BTX recovery and sulfur removal. The proprietary column internals and tray designs ensure superior mass transfer and phase contact, resulting in ultra-high purity streams with minimal energy usage.

2. Proprietary Solvent Technology

At the core of GT-BTX PluS™ is a customized solvent formulation, expertly crafted to maximize selectivity for BTX and efficiently extract sulfur compounds. This solvent not only enhances extraction performance but also minimizes environmental impact and operational costs by requiring lower makeup rates and providing long-term stability.

3. Flexible Operation Across Feedstocks

GT-BTX PluS™ is designed to adapt to varying FCC gasoline qualities and sulfur concentrations. Whether processing feed from new units, older facilities, or different refinery configurations, the technology maintains high recovery and efficiency, helping operators respond to changing crude slates and market demands.

4. Integrated Simulation and Pilot Testing

Sulzer’s unique approach includes in-house simulation and pilot testing capabilities. Before implementation, process conditions are optimized using advanced modeling tools and technical-scale validation. This means each GT-BTX PluS™ system is tailored to the plant’s specific needs, ensuring reliable results and risk-free integration.

5. Proven in Commercial Applications

GT-BTX PluS™ has a successful track record in global installations. Refineries using the technology consistently achieve regulatory standards for sulfur, maximize BTX yields, and enjoy stable, maintenance-friendly operation.

Key Characteristics at a Glance

Feature	Description
Extractive Distillation-based Process	Recovers BTX and removes sulfur in a single, efficient step
Advanced Column Internals	Proprietary design for optimal mass transfer and product purity
Customized Solvent System	High selectivity for BTX, robust sulfur extraction, low environmental impact
Flexible Feedstock Handling	Performs reliably across a wide range of FCC gasoline qualities
Simulation & Pilot Testing	In-house modeling ensures tailor-made, risk-free process optimization
Proven Commercial Reliability	Extensive field operation demonstrating efficiency and reliability

Conclusion

The scientific foundation and engineering innovation behind GT-BTX PluS™ make it the technology of choice for refineries seeking operational flexibility, product quality, and cost effectiveness. By investing in GT-BTX PluS™, operators secure the dual benefits of proven industrial results and a solution prepared for future challenges.

To learn more about GT-BTX PluS™  and receive a preliminary assessment of your feedstock, contact us.