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Petrochemical Technology

GTC’s petrochemical technologies focus 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.

Aromatics Recovery — GT-BTX Select®

GT-BTX Select 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.

Selective Toluene Disproportionation Conversion — GT-STDP℠

GT-STDP, our selective toluene conversion process technology, produces benzene and para-enriched xylenes from toluene disproportionation.

Xylene Isomerization — GT-IsomPX℠

GT-IsomPX℠ is GTC’s xylene isomerization technology available in two versions: EB isomerization type and EB dealkylation type.

C5 Processing

GTC offers two technologies to recover DCPD and PIPS for making hydrocarbon resin and SIS/polymer grade isoprene.

Styrene Recovery — GT-Styrene®

GT-Styrene® is our 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 (NGLs).

Paraxylene Recovery — CrystPX℠

CrystPX℠ 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.

Transalkylation — GT-TransAlk℠

GT-TransAlk℠ is GTC’s transalkylation processthat produces benzene and xylenes from toluene and/or heavy aromatics streams.

Aromatization — GT-Aromatization℠

GT-Aromatization℠ is GTC’s aromatization technology that is used to convert light naphtha and mixed feeds to aromatics and gasoline.

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