GTC Technology | 1001 S. Dairy Ashford Rd, Ste 500 | Houston, TX 77077, USA | 1-281-597-4800
GT-BTX PluSSM
GT-BTX PluSSM is a variation of GT-BTX® that uses extractive distillation technology for simultaneous recovery of BTX and thiophenic sulfur species from refinery or petrochemical aromatic-containing streams. The technology helps produce low sulfur gasoline meeting the 10 ppm limit of sulfur without change in octane value. An alternative use of GT-BTXPluSSM is to generate a large volume of aromatics to produce paraxylene without the requirement of a typical naphtha reformer unit. The process is especially attractive for use with feedstocks produced from high severity FCC operations.
The process is optimally installed on the FCC mid-cut naphtha stream. GT-BTX PluSSM removes all thiophenes and some of the mercaptan species from the FCC gasoline feed. The olefin-rich raffinate can be sent directly to the gasoline pool for blending, or to a caustic treating unit to remove the mercaptan-type sulfur compounds before being sent to the gasoline. The desulfurized aromatics extract stream can be directly fed into petrochemical production units instead of recycling to the naptha reformer. GT-BTX PluSSM provides an effective solution for meeting today's clean gasoline requirements and gives refiners the ability to convert lower-value gasoline components into higher-value petrochemicals.
The process is optimally installed on the FCC mid-cut naphtha stream. GT-BTX PluSSM removes all thiophenes and some of the mercaptan species from the FCC gasoline feed. The olefin-rich raffinate can be sent directly to the gasoline pool for blending, or to a caustic treating unit to remove the mercaptan-type sulfur compounds before being sent to the gasoline. The desulfurized aromatics extract stream can be directly fed into petrochemical production units instead of recycling to the naptha reformer. GT-BTX PluSSM provides an effective solution for meeting today's clean gasoline requirements and gives refiners the ability to convert lower-value gasoline components into higher-value petrochemicals.
Advantages:
- Produces high-quality aromatics from FCC gasoline.
- Reduces the sulfur content of the FCC gasoline fraction being sent to the gasoline pool
- Reduces H2 consumption, only HDS function is required for thiophenic sulfur
- No olefin saturation
- Greater utilization of naphtha reformer compared to units that recycle the cracked gasoline. Avoids BTX taking a "free ride" through the unit
- Opportunity to feed more fresh naphtha and generate more hydrogen.
