Isomalk-4: C7 Paraffin Isomerization Technology

C7 Paraffin Isomerization Technology Exclusively Licensed for Optimum Naphtha Management

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Isomalk-4SM

Isomalk-4SM

Technology Licensing

Engineered to Innovate

Isomalk-4SM: C7 Isomerization Process Isomalk-4 is a low-temperature isomerization technology for processing C7 paraffins contained in wide-range naphtha streams. In a conventional refinery configuration, C7 paraffins are distributed to the C5-C6 isomerization unit and the reformer. These 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.%. This meets required gasoline specifications without any additional blending.

With Isomalk-4, refiners can realize the maximum value of the naphtha molecules, and minimize cracking and benzene formation. The naphtha stream is split into three streams. The 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. The C7 mid-cut stream is sent to the Isomalk-4 unit to achieve the equilibrium amount of di- and trimethylbutanes, having very high octane. The feed to the reformer is controlled to minimize benzene precursors, cracking, and hydrodealkylation reactions, thereby improving the octane and yield.

GTC Technology 1001 S. Dairy Ashford, Suite 500 Houston, Texas 77077 USA Main +1-281-597-4800 Toll Free [email protected] | www.gtctech.com

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

11%

Hydrocarbon Gas

10.2%

Aromatics: 0%

Isomerization Unit

(Isomalk-2SM Process)

Yield: 98%

ISOMERATEHydrotreatingUnit

70 - 105˚C

RON 86

Isomerization Unit

(Isomalk-4SM Process)

Yield: 93%

Reforming Unit

Yield: 88%

(C7 Rich Cut)

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AdvantagesThe table below shows the comparison of key parameters of the conventional naphtha processing configuration (C5-C6 isomerization and reforming) and a plant with Isomalk-4:

GTC Technology 1001 S. Dairy Ashford, Suite 500 Houston, Texas 77077 USA Main +1-281-597-4800 Toll Free [email protected] | www.gtctech.com

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

• Processcapabilitytoproduce84-86RONfromthestandaloneunit

• Lowoperatingcosts

• Regenerablecatalystwithsuperiortolerancetoprocessimpuritiesandwater

• Nochlorideadditionorcaustictreatmentneeded;nowastesproduced

• Massyield>93%

• ServicelifeofSI-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 profitability, call us today at +1-281-597-4800, e-mail us at [email protected], or visit our Web site at http://www.gtctech.com.

Configuration Conventional With Isomalk-4SM Benefit

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 is a global licensor of process technologies and mass transfer solutions. We provide our advanced processes to refining and petrochemical companies around the world to improve their capacity and efficiency, as well as maximize production. GTC offers unparalleled industry expertise, powerful research capabilities and innovative thinking to solve complex processing problems and has earned a reputation of excellence by designing and delivering high-quality, strategic solutions for clients worldwide. We’re engineered to innovate.

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+1-281-597-4800 [email protected]

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