GTC's petrochemical technology portfolio is focused on high growth areas of olefins plant by-product upgrading and the chain of polyester intermediates.  Our broad portfolio of products and extensive experience enables clients to seamlessly integrate our processes across business lines.  Listed below is an overview of our petrochemical technologies offered.

 

GT-BTX Select^SM is GTC's aromatics recovery technology that uses extractive distillation to remove benzene, toluene, and xylene (BTX) from refinery or petrochemical aromatics streams such as catalytic reformate or pyrolysis gasoline.  With lower capital and operating costs, simplicity of operation, and range of feedstock and solvent performance, extractive distillation is superior to conventional liquid-liquid extraction processes.  Flexibility of design allows use for grassroots aromatics recovery units, debottlenecking or expansion of conventional extraction systems.  Click here to learn more about our aromatics recovery technology.

GT-Styrene® is GTC's extractive distillation (ED) process that directly recovers styrene from the raw pyrolysis gasoline derived from the steam cracking of naphtha, gasoils and natural gas liquids (NGL's).  The produced styrene is high purity and suitable for all polymerization uses at a very attractive cost compared to conventional styrene production routes.  If desired, the mixed xylenes can also be extracted from the pygas, upgrading their value as a chemical feedstock.  The process is economically attractive for pygas feeds containing more than 15,000 tpy styrene.  Click here to learn more about our styrene recovery technology.

 

GT-STDP^SM is GTC's selective toluene conversion process technology that produces benzene and para-enriched xylenes from toluene disproportionation.  The technology features a proprietary catalyst with high activity and selectivity towards paraxylene.  Click here to learn more about our selective toluene conversion process technology.

 

CrystPX^SM is GTC's modern suspension crystallization technology for production of paraxylene (PX).  The process can be applied in a single-stage for concentrated PX feedstock or in two stages for equilibrium xylenes feed.  The technology has fewer pieces of equipment, simplified flow schemes, and a more reliable operation compared to traditional crystallization methods.  Click here to learn more about our paraxylene recovery technology.

 

GT-IsomPX^SM is GTC's xylene isomerization technology available in two versions: EB isomerization type and EB dealkylation type.  Both versions gain high ethylbenzene (EB) conversion rates while producing equilibrium mixed xylenes.  Catalysts that exhibit superior physical activity and stability are the key to this technology.  The technology and catalysts are used commercially in several applications.  Click here to learn more about our xylene isomerization technology.

 

GT-TransAlk^SM is GTC's transalkylation technology that produces benzene and xylenes from toluene and/or heavy aromatics streams.  The technology features a proprietary catalyst and can accommodate varying ratios of feedstock while maintaining high activity and selectivity.  Click here to learn more about our transalkylation technology.

 

GTC Technology offers an optimized technology for two-stage pyrolysis gasoline (pygas) hydrotreatment in cases where di-olefins, olefins, and styrene in the raw pygas feed are saturated.  The technology is simple and easy to implement into existing plant requirements.  The process is applied to the C₅+ fraction of raw pyrolysis gasoline.  Click here to learn more about our pyrolysis gasoline (pygas) hydrotreating technology.

 

GT-Aromatization^SM is GTC's aromatization technology that is used to convert light naphtha and mixed feeds to aromatics and gasoline.  Typical feedstocks are C₄ and C₅ cuts from FCC gasoline as well as raffinate from the GT-BTX PluS process.  Click here to learn more about our aromatization technology.