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Sinoway Int'l Hlds Ltd.
supplied the first shipment of High Sulfur
Petcoke to China in the second half of 2001,
and supplied around 250,000MT Green Delayed
Petcoke to China markets in the year of 2002
and 2003. Now Sinoway act as the leading
supplier of Chinese Green Petcoke to the
oversea customers, annually handling over
half million tons of Petcoke.
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General Description |
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Green Petroleum coke is a
residual by product of oil refining process.
Residue components of heavy crude oil is
used as feedstock in thermal cracking
process known as coking to produce lighter
fuels. It is heated to about 475 degrees
centigrade to 520 degrees centigrade in a
furnace, then is discharged into a coke drum
for extensive and controlled cracking. |
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The cracked lighter product rises to
the top of the drum and is drawn off. The heavier
product remains and, because of the retained heat,
cracks ultimately to coke, a solid carbonaceous
substance akin to coal, known as petcoke. |
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Decoking is accomplished by a
high-pressure water jet. First the top and bottom
heads of the coke drum are removed. Next a hole is
drilled in the coke from the top to the bottom of
the vessel. Then a rotating stem is lowered through
the hole, spraying a water jet sideways. The
high-pressure jet cuts the coke into lumps, which
fall out the bottom of the drum for subsequent
loading into trucks or railcars for shipment. |
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Cokers produce no liquid residue but
yield up to 30 percent petcoke by weight. Much of
the low-sulphur product is employed to produce
electrodes for the electrolytic smelting of
aluminum. Most lower-quality coke is burned as fuel
in admixture with coal. |
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Usage of Petcoke for Chinese customers |
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Most of the imported Petcoke(
petroleum coke) is used for burning as the fuel
materials like power generation, silicon melting,
cement industry. This kinds of Petcoke normally have
high sulphur, metal content, also have high shot
coke content (over 30%, some of them is 100% shot
coke). |
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Petcoke is also widely used to
produce Calcined Petroleum Coke (CPC), which will be
used to produce Pre-baked Anode or Graphite
products. This kinds of petcoke should be sponge
coke with low sulphur, ash and metal content. |
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Main Application |
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Petroleum coke can be used in different
industries. The major user of high-sulfur petroleum coke are
cement plant and power station. The main users of low sulfur
petroleum coke are carbon plant, the aluminum industry, iron
and steel plants. |
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As fuel for the cement plant and electric
plant, which need a high caloric value and a good grinding;
As raw materials for Aluminum and steel plants or carbon
factory, whether as artificial graphite electrode and the
raw material of anode paste, both need to control sulfur and
volatile. The metal content of petroleum coke for graphite
electrode production should also be controlled. |
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