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Paraxylene

Reliance Industries limited (RIL) is the 5th largest producer of Paraxylene (PX) in the world. With Aromatic plants located at different locations, Reliance has an annual capacity of approximately 1.86 million tons.

APPLICATIONS

It is the building block for the entire polyester industry. It is processed to get Pure Teraphthalic Acid (PTA) or Dimethlyl Teraphthalate (DMT) that is further processed to form polyester fibers.

The aromatic complexes are located on the West Coast of India from where bulk of the foreign trade takes place. These locations have a strategic importance as they have easy access to ports, which make it convenient for exports.

Exports

RIL exports large quantities of Paraxylene to the leading petrochemical companies located all across the globe. Reliance’s market share is 7-8% internationally, with product well established in Asia, Europe and America.

Paraxylene History

Aromatic hydrocarbons have been produced commercially since the early part of the last century. Initially they were used as mixtures, in solvent applications. Benzene was isolated as an individual compound by 1850. However the demand for Xylenes increased only after the 1950’s, when the chemical industry started growing rapidly. Xylenes form the basic raw material for the production of polyester fibers, which has become the heart and soul of the complete textile industry, packaging, furnishing, coating, consumer goods, resins etc.

UOP Technology

UOP INC USA, world leader in Aromatic and Petrochemical processes, has supplied the basic technology. With the kind of technology and the scale of automation incorporated, production of the highest level is achieved and total quality control is ensured. Due to the incorporation of computer integrated manufacturing (CIM) process the chances of manual error occurring has been minimized to a great extent.

SPECIFICATION

SR.NO PARAMETERS SOP NO. UNIT SPECIFICATION LIMIT

1

Appearance

Visual

 

Clear-Free of Particles

2

Color

ASTM D 1209

HU

Max. 10

3

Specific Gravity @ 15.5/15.50C

ASTM D 4052

 

0.862-0.870

4

Acid Wash Color

ASTM D 848

Number

Max 5

5

Bromine Index

ASTM D 1492

Mg/100g

Max 200

6

Sulfur

ASTM D 4045

Wt. PPM

Max 1

7

Nitrogen

ASTM D 4629

Wt. PPM

Max 1

8

Chloride

UOP 779

Wt. PPM

Max 1

9

Freeze Point

ASTM D 1015

oX

13.15 Min

10

Copper Strip Corrosion

ASTM D 849

Number

1 A

11

Distillation Range0C at 760 mm Hg including 138.30C

ASTM D 850

oC

Max 2

12

Doctor Test

UOP 41

Visual

Sweet

13

G.C. Composition      
 

Non Aromatics

UOP 543

Wt. %

Max 0.10

 

Ethyl Benzene

UOP 720

Wt. %

Max 0.20

 

Paraxylene

UOP 720

Wt. %

Min 99.80

 

Metaxylene

UOP 720

Wt. %

Max 0.20

 

Orthoxylene

UOP 720

Wt. %

Max 0.10