C7 Para� n Isomerization Technology Exclusively Licensed for Optimum Naphtha Management

Isomalk-4SM

Engineered to Innovate®

Isomalk-4SM

Technology Licensing

Engineered to Innovate

Isomalk-4SM: C7 Isomerization Process Isomalk-4 is a low-temperature isomerization technology for processing C7 para� ns contained in wide-range naphtha streams. In a conventional re� nery con� guration, C7 para� ns are distributed to the C5-C6 isomerization unit and the reformer. � ese components have a high X-factor that reduces the overall yield of the liquid products, lowers RON of the gasoline, and forms unwanted amounts of benzene. GTC’s innovative process allows isomerization of this hydrocarbon stream to achieve a low-RVP gasoline component with 84-86 RON, while improving the operation of the other naphtha processing units. By applying Isomalk-4, the wide-range naphtha can yield over 90 wt% liquid having a 95-98 RON, with benzene content <0.6 vol.%. � is meets required gasoline speci� cations without any additional blending.

With Isomalk-4, re� ners can realize the maximum value of the naphtha molecules, and minimize cracking and benzene formation. � e naphtha stream is split into three streams. � e lightest one, with <1% C7 is sent to the C5-C6 isomerization unit to yield 98-99 wt.% of 91.5-92.5 RON component. � e C7 mid-cut stream is sent to the Isomalk-4 unit to achieve the equilibrium amount of di- and trimethylbutanes, having very high octane. � e feed to the reformer is controlled to minimize benzene precursors, cracking, and hydrodealkylation reactions, thereby improving the octane and yield.

Hydrocarbon Gas

Aromatics: 0%

ISOMERATE

REFORMATE

RON 91.5

RON 98

23% 22.5%

100%

66% 58.0%

RON 95.5

Benzene: 0.60%Aromatics: 33.8%

Benzene: 1.2%Aromatics: 62%

Yield: 90.85%

BlendingSection

Hydrocarbon Gas

IBP - 70˚C

(C7<1%)

(C6<0.3%)

NaphthaSplitter

Feed IBP - 180˚C

105 - 180˚C

RON 95.5

Benzene: 0.60%Aromatics: 33.8%

Yield: 90.85%

BlendingSection

11%

Hydrocarbon Gas

10.2%

Aromatics: 0%

Isomerization Unit

(Isomalk-2SM Process)

Yield: 98%

ISOMERATEHydrotreatingUnit

70 - 105˚C

RON 86

Hydrocarbon Gas

Isomerization Unit

(Isomalk-4SM Process)

Yield: 93%

Hydrocarbon Gas

Reforming Unit

Yield: 88%

(C7 Rich Cut)

GTC Technology 900 Threadneedle St., Suite 800 Houston, Texas 77079 Main +1-281-597-4800 Toll Free +1-877-693-4222inquiry@gtctech.com | www.gtctech.com

GTC Technology Engineered to Innovate

Advantages� e table below shows the comparison of key parameters of the conventional naphtha processing con� guration (C5-C6 isomerization and reforming) and a plant with Isomalk-4:

� e inclusion of Isomalk-4 in the re� nery con� guration gives a 2.1% wt. gain of liquids, a higher 1.5 RON value, and lower overall benzene and aromatics. � e SI-4TM catalyst provides high conversion rates and approaches thermal equilibrium at low temperatures. � e SI-4 catalyst exhibits superior activity alongside stability, simplicity, and safety in operation. Features of the Isomalk-4 technology include:

• Process capability to produce 84-86 RON from the standalone unit

• Low operating costs

• Regenerable catalyst with superior tolerance to process impurities and water

• No chloride addition or caustic treatment needed; no wastes produced

• Mass yield > 93%

• Service life of SI-4TM catalyst: 8-10 years

Engineered to InnovateTo learn more about GTC Technology’s leading-edge technology solutions and the many ways we can help improve your operations and pro� tability, call us today at +1-281-597-4800, e-mail us at inquiry@gtctech.com, or visit our Web site at http://www.gtctech.com.

Con� guration Conventional With Isomalk-4SM Bene� t

Overall gasoline yield, wt.% 88.7% 90.8% 2.1%

Octane Number, RON 94.0 95.5 1.5

Benzene in the gasoline pool, vol.% 1.5% 0.6% 0.9% less

Aromatics in the gasoline pool, vol.% 37.0% 33.5% 3.5% less

GTC Technology 900 Threadneedle St., Suite 800 Houston, Texas 77079 Main +1-281-597-4800 Toll Free +1-877-693-4222inquiry@gtctech.com | www.gtctech.com

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GTC Technology is a global licensor of process technologies and mass transfer solutions with the mission of creating value for our clients. Re� ning, petrochemical and chemical companies around the world rely on GTC’s advanced processes to optimize production capacity and e� ciency. With insightful industry expertise, research capabilities and innovative thinking, GTC solves complex processing problems and has earned a reputation of excellence in designing and delivering high-quality, strategic solutions for clients worldwide. We’re engineered to innovate.

Engineered to Innovate®