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® and uses extractive distillation technology for simultaneous recovery of BTX and thiophenic sulfur species from refinery or petrochemical aromatic-containing streams. The technology is useful to produce low sulfur gasoline meeting the 10ppm limit of sulfur, without change in octane value. An alternative use of GT-BTXPluSSM is to generate a large volume of aromatics useful to produce paraxylene, without the requirement of a typical naphtha reformer unit. The process is especially attractive for use with feedstocks that have been 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 partially 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 excellent solution to meet today's clean gasoline requirement, as well as 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 partially 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 excellent solution to meet today's clean gasoline requirement, as well as 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 which recycle the cracked gasoline. Avoids BTX taking a "free ride" through the unit
- Opportunity to feed more fresh naphtha and generate more hydrogen.
