1World Energy Corporation

Menu

Aromatics

Building blocks of many

Aromatics provide some of the basic building blocks of the modern petrochemical industry. Clothing, packaging, paints, adhesives, computers, compact discs, snow boards and tennis racquets are among the many products that rely on aromatics. Aromatics are cyclic unsaturated hydrocarbons containing one or more Benzene rings.

1World Energy Specifications for
Aromatics

  1. Benzene
  2. Toluene
  3. Xylene
    1. Paraxylene
    2. Orthoxylene
  4. Cyclohexane
  5. Polydiethyl Benzene (PDEB)
  6. Linear Alkyl Benzene (LAB)

1. Benzene

  • Product Information:
    1. Benzene is extracted from two primary sources: pyrolysis gasoline (pygas), which is a co-product of ethylene manufacture; or reformate, a refinery stream resulting from the catalytic reforming process used in gasoline production. Benzene can also be derived from toluene.
  • Applications:
    1. Benzene is widely used across many industrial sectors, where it is combined and processed with other basic chemicals (such as ethylene or propylene) to produce countless consumer goods: clothing, packaging, paints, adhesives, plywood, computer casings, compact discs, dyes, agrochemicals, pharmaceuticals and many more. 
    2. The largest derivative outlet for benzene is ethylbenzene, an intermediate used in the production of styrene, which is further converted into materials such as polystyrene. 
    3. Benzene is also widely used to produce cumene, which in turn leads to phenol, a component in phenolic resins and adhesives; cyclohexane, a precursor of caprolactam and adipic acid, both used in nylon; and aniline, a material needed to produce methylene diphenyl diisocyanate (MDI) which is used in urethanes and other specialty applications. 
    4. It is used to produce a number of petrochemical intermediates such as ethylbenzene for styrene production, cumene for phenol and acetone, cyclohexane and nitrobenzene.
  • Specifications:
    1. Following is the specification of Benzene grades offered by 1WorldEnergy . Material Data Sheets and Detailed Technical Sheets will be provided on enquiry.

S.No

Parameter

Ref. Method

UoM

Specs

 

 

 

 

 

1

Benzene Purity

ASTM D 4492 /7360

Wt. %

99.9 Min.

2

Toluene

ASTM D 4492 /7360

Wt. ppm

300 Max

3

Total Non-Aromatics

ASTM D 2360/4492/7360

Wt. ppm

400 Max

4

Total Sulphur

ASTM D 5453

Wt. ppm

1.0 Max

5

Moisture

ASTM D 6304/E 203

Wt. ppm

500 Max

6

Appearance

ASTM D 4176

—

Clear liquid free of Sediment/Haze

7

Colour

ASTM D 1209

Pt. Co

10 Max

8

Spec. gravity at

15.5/15.5 °C

ASTM D 4052

 

0.882-0.886

9

Acid Wash Colour

ASTM D 848

Number

1 Max.
10

Bromine Index

ASTM D 1492/5776/2710

Mg/100 Gm.

10 Max.
11

Solidification Point (Anhydrous Basis)

ASTM D 852

Deg. C

5.45 Min.
11

Distillation Range 1 to 96%

ASTM D 850

Deg. C

Within 1 °C

including 80.1 °C

12

 Acidity

ASTM D 847

mg NaOH/100 ml

 Nil

 

 

 

 

 

2. Toluene

  • Product Information:
    1. Toluene is extracted from gasoline manufacturing streams and so is produced in very large quantities to one of three grades of purity: TDI, nitration, and commercial.
  • Applications:
    1. TDI grade toluene is used to make isocyanates, which are combined with polyols in the manufacture of polyurethanes. 
    2. In turn, polyurethanes are used in a wide variety of consumer goods, such as foams for furniture and bedding, coatings for floors and furniture, artificial sports tracks, ski suits and waterproof leisure wear. 
    3. Nitration grade toluene is used as a solvent and also in the production of phenol, particularly in Europe. 
    4. Both nitration and commercial grades are used as feed in the hydrodealkylation process, which turns the toluene into benzene, and in the disproportionation process, which converts toluene it into both benzene and xylene.
    5. Toluene has low volatility, which also makes it a good octane-enhancer for gasoline blending.
  • Specifications:
    1. Following is the specification of Toluene grades offered by 1WorldEnergy. Material Data Sheets and Detailed Technical Sheets will be provided on enquiry. 

No.

Parameters

Reference Method No.

Unit

Specification Limits

1

Appearance

ASTM D 4176

(Visual)

—

Clear liquid free of

sediments or Haze

2

Colour

ASTM D 1209

Pt-Co

10 max.

3

Purity

ASTM D 2360

wt. %

99.8 min.

4

Specific gravity @15.5/15.5oC

ASTM D 4052

—

0.870 – 0.874

5

Cu Corrosion

ASTM D 849

—

To Pass

6

Acidity / Neutrality

ASTM D 847

mg NaOH/100 ml

Neutral

7

Distillation

1 to 96 %

ASTM D 850

 

o C

Within 0.6 °C

(including 110.6 oC)

8

Non Aromatic

ASTM D 2360

wt. ppm

2000 max.

9

Benzene

ASTM D 2360

wt. ppm

500 max.

10

Moisture

ASTM E 203

wt. ppm

500 max.

3. Xylene

  • Product Information:
    1. Xylenes – para-xylene, ortho-xylene and meta-xylene – are extracted or distilled from gasoline refining. 
    2. They can also be produced from toluene using the disproportionation process. 
    3. Xylene is mainly supplied as a mixed stream, although various processes are used to separate the individual isomers for specific end-uses.
  • Applications:
    1. Para-xylene is primarily used as a feedstock for terephthalic acid, a key component in polyethylene terephthalate (PET) resins. 
    2. Ortho-xylene is used in plasticisers, medicines, and dyes. Mixed xylenes can be used as solvents and in the printing, rubber, and leather industries. 
    3. They are also a desirable gasoline component, but are blended less often than toluene because there is greater demand and higher value in their chemical applications.
  • Specifications:
    1. Following is the specification of Xylene grades offered by 1WorldEnergy. Material Data Sheets and Detailed Technical Sheets will be provided on enquiry
      1. Paraxylene
      2. Orthoxylene

3.1. Paraxylene

  • Product Information:
    1. Paraxylene is the building block for the entire polyester industry. 
  • Applications:
    1. It is processed to get Purified Terephthalic Acid (PTA) that is further processed to form polyester fibers / PET.
  • Specifications:
    1. Following is the specification of ParaXylene grades offered by 1WorldEnergy . Material Data Sheets and Detailed Technical Sheets will be provided on enquiry.

 

Attributes

Unit

Test Method

Product Supply Specs

1

Appearance

—

Visual

Clear Liquid, Free from Sediments

2

Colour

HU

ASTM D 1209

10 Max

3

Specific Gravity, 15.5 / 15.5 °C

—

ASTM D 4052

0.860 – 0.870

4

Acid wash Colour

Number

ASTM D 848

Max 5.0

5

Bromine Index

mg / 100 gm

ASTM D-5776

Max 200

6

Total Sulphur

Wt ppm

ASTM D 4045

1.0 Max

7

Nitrogen

Wt ppm

ASTM D 4629

1.0 Max

8

Chloride

Wt ppm

UOP-779

Max 1.0

9

GC Composition

 

 

 

 

Non – aromatics

Wt%

 

 

 

UOP 720

Max 0.10

 

Toluene

Wt%

Max 0.05

 

Ethyl Benzene

Wt %

Max 0.20

 

Para Xylene

Wt %

Min 99.70

 

Meta Xylene

Wt %

Max 0.20

 

Ortho Xylene

Wt%

Max 0.10

3.2. Orthoxylene

  • Product Information:
    1. Orthoxylene (OX) is the second largest of the three commercial isomers of xylene and has a sweet, aromatic smell. It is a colorless liquid, with a characteristic odor.
  • Applications:
    1. The major application of Orthoxylene is for production of Pthalic Anhydride (~90%) with other applications being in paints, fibreglass, PEN, etc.
  • Specifications:
    1. Following is the specification of OrthoXylene grades offered by 1WorldEnergy . Material Data Sheets and Detailed Technical Sheets will be provided on enquiry. 

No.

Attributes

Unit

Test Method

Product Supply Specs

1

Color

HU

ASTM D 1209

20 Max

 

2

Specific Gravity, 15.5 / 15.5°C

 

 

ASTM D 4052

 

0.882 – 0.885

3

Distill.Range °C at 760 mm Hg Including 144°C

°C

ASTM D 850

2.0 Max

4

Ortho Xylene

Wt%

ASTM D 3797 / 2360

98.00 Min

5

Non – aromatics

Wt%

ASTM D 3797

1.0 Max

6

Cumene

Wt%

ASTM D 3797 / 2360

0.5 Max

7

Styrene

Wt%

ASTM D 3797 / 2360

0.1 Max

8

Total Sulphur

Wt ppm

ASTM D 4045

1.0 Max

9

Acidity Total

Mg NaOH / 100 ml

ASTM D 847

No Free Acidity

4. Cyclohexane

  • Product Information:
    1. Cyclohexane is a cycloalkane with a chemical formula C6H12 and is mainly obtained from petroleum and benzene. 
    2. It is a colorless and flammable liquid with pungent odor which is made by hydrogenation of benzene, due to its combustible nature, it has to be properly packaged and transported so that it does not come in contact with any other compound to form ignition.
    3. Our efficient team of Packaging and Wide and Efficient Channel of Distributors take utmost care of this activity while dispatching and exporting this compound to the places of demand. 
    4. Unlike other compounds Cyclohexane cannot be obtained from natural resources such as coal.
  • Applications:
    1. It is normally used as a solvent for chemical industries.
    2. It is also used as a varnish remover and a paint remover. 
    3. Used as  nonpolar solvent for the chemical industry, and in the processing of paint, ink and rubber. 
    4. It also used as a raw material for the industrial production of adipic acid and caprolactam, both of which are intermediates used in the production of nylon. 
  • Specifications:
    1. Following is the specification of Cyclohexane grades offered by 1WorldEnergy . Material Data Sheets and Detailed Technical Sheets will be provided on enquiry.

Property

ASTM Method

Specification

Cyclohexane, min, weight %

D7266

99.90

Methylcyclopentane, max, mg/kg

D7266

150

Methylcyclohexane, max, mg/kg

D7266

200

Benzene, max, mg/kg

D7266

50

Sulfur, max, mg/kg

D7183

1

Color, max, Pt-Co scale

D5386 or D8005

10

Distillation range including the temperature 80.7° C at 101.3 kPa (760 mm Hg) pressure

 

D850

 

1-1.1

5. Polydiethylbenzene (PDEB)

  • Product Information:
    1. PDEB is a organic matter.Used as a solvent, organic synthesis intermediate, gas chromatographic contrast sample. 
    2. As a desorption agent for dimethylbenzene. PDEB is a flammable liquid with high flash point, and should be stored in a shady, cool and ventilative warehouse. Appearance colorless transparent liquid. Packing: 170 kg/galvanized drum, ISO tank
  • Applications:
    1. PDEB is used as as a desorbent for adsorption and separation of p-xylene.
  • Specifications:
    1. Following is the specification of PDEAB grades offered by 1WorldEnergy . Material Data Sheets and Detailed Technical Sheets will be provided on enquiry. 

Item

Quality  index

Appearance

Colorless  transparent liquid

P-Diethylbenzene content, wt%                               ≥

99

C9 arene and light components, wt%                        ≤

0.15

Other C10 alkylbenzene, wt%

Equilibrium  value

C11 arene and heavy components, wt%                    ≤

0.2

Bromine index,  mgBr/100g                                    ≤

5.00

Carbonyl number, mg/L                                            ≤

1.00

Total sulphur, mg/kg                                                ≤

1.0

Total nitrogen, mg/kg                                               ≤

1.0

Total chlorine, mg/kg                                                ≤

1.0

Density (20 oC) , g/cm3

0.8655±0.005

Color,  (Pt-Co)                                                                ≤

10

6. Linear Alkyl Benzene (LAB)

  • Product Information:
    1. LAB is the key ingredient for the detergent industry. LAB is sulfonated to produce Linear Alkyl Benzene Sulphonic Acid (LABSA)
  • Applications:
    1. LABSA is mainly used to produce household detergents including laundry powders, laundry liquids, dishwashing liquids and other household cleaners. 
    2. It is also used in numerous industrial applications such as coupling agent, emulsifier for agricultural herbicides and emulsion polymerization. 
    3. We cater to the large global and domestic detergent brands and to individual Sulphonators.
  • Specifications:
    1. Following is the specification of LAB grades offered by 1WorldEnergy . Material Data Sheets and Detailed Technical Sheets will be provided on enquiry. 

No.

Test Parameter

Test Method

UOM

Specification

1

Appearance

Visual Observation

N.A.

Clear colourless liquid free from sediments

2

Saybolt Colour

ASTM D 156-12

Saybolt

+29 Min.

 

3

 

Sp.Gr. at 15.5 oC/15.5 cC

 

ASTM D 4052-11

 

N.A.

 

0.8580 – 0.8650

 

4

 

Bromine Index

 

ASTM D 2710-09

 

mg /100g.

 

10 Max.

 

5

 

Doctor Test

 

UOP 41-07

 

N.A.

 

Negative

 

6

 

Paraffin content

 

 

 

UOP 698-04

 

mass %

 

0.2 Max.

 

7

 

a) Less thanC10 LAB

mass %

 

1.0 Max.

 

8

 

b) C14 LAB

mass %

 

1.0 Max.

 

9

 

c) C10 – C13 LAB

mass %

 

98.0 Min.

 

10

 

Average molecular weight

 

UOP 698-04

 

N.A.

 

235 – 239

 

11

 

2-Phenyl Alkanes

 

UOP 698-04

mass %

 

10.0 – 20.0

12

Transmittance at 403 nm

P&G Method EM-7203

% T

45 min

 

13

 

Moisture

 

UOP 481-10

 

mg/kg

 

200 Max.