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Product Name:

Industrial Ethylene

Trade Mark:

Sanren Brand

Structural Formula:

Production Process:

Using straight-run kerosene and diesel distillates, naphtha and hydrogenated tailings as raw material, the product is produced in a pipe cracking heater and obtained through cryogenic separation.

Properties:

Under the normal temperature, ethylene is a colourless inflammable and explosive gas with the explosive limits between 3.05-28.6 Vol.%, flash point –136.11℃, spontaneous ignition point 425℃. Its density is slightly higher than that of air.It is easy to disperse. The critical temperature is 9.7℃ and the critical pressure 5132kPa. With active chemical properties, ethylene is a basic raw material for organic synthesis.

Specifications:

GB7715-87 (National Standard)

No.

Item

Quality Criteria

Testing Method

Premium-grade

1st -grade

On-spec.

1

Ethylene Content, %(v/v)>=

99.9

99.9

99.0

GB/T 3391

2

Methane and ethane, %(v/v)  <=

0.1

0.1

balance

GB/T 3391

3

C3 and above, mL/m3  <=

50

80

-

GB/T 3391

4

Carbon monoxide, mL/m3  <=

5

5

10

GB/T 3394

5

Carbon dioxide, mL/m3  <=

10

20

50

GB/T 3394

6

Oxygen, mL/m3  <=

2

5

10

GB/T 3396

7

Acetylene, mL/m3  <=

5

10

20

GB/T 3395

8

Sulphur, mg/kg  <=

1

2

3

GB/T 11141

9

Water, mL/m3  <=

(1)In producer's and user's piping

(2)In user's tank

10

uncertain

 

20 

 

 

GB 7715 

10

Hydrogen, mL/m3  <=

10

-

-

GB/T 3393

11

Methanol, mg/kg  <=

Testing if necessary

GB/T 12701

Major Applications:

The product with a high purity and little impurity can be used to produce polyethylene, PVA, PVC, PS, EG and synthetic aldehyde. It is a high-quality basic raw material for organic synthesis.

Packing:

Bulk

Storage:

Spherical tank, cryogenic normal pressure storage tank.

Transportation:

Be pumped out of the plant via a pipe network or by means of a special vessel/ tank truck.

Safety Precautions:

1. Ethylene is an inflammable and explosive substance. During storage and transportation, safety precautions against fire and explosion must be taken. At the same time, keep away from fire, heat sources and sunlight.
2. Special pressure vessels or cryogenic normal pressure vessels must be used for transportation. In compliance with the relevant Government Ordinance concerning hazardous chemicals, due formalities must be gone through for the permission of transportation. Static electricity discharger must be provided to prevent static electricity from being accumulated. Fire fighting device must be equipped as well.
3.Ethylene is anesthetic. When its concentration in the air reaches to a medium level, it could make people lose their consciousness. We should prevent ourselves from being contacted by liquefied ethylene for frostbite. Guard against leakage during storage and transportation.


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