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Fine-grained
petroleum coke cannot be used for industrial purposes, therefore
pelletizing of fine petroleum coke (less than 200 μm) was achieved
with addition of bentonite as inorganic binder
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The agglomeration
process is of broad potential use in revaluing fine-sized petroleum
coke wastes and waste products known as impalpable fines. These
materials were agglomerated in a disc pelletizer with binding agents
to obtain pellets with high carbon content, good reactivity and good
consolidation in hot and cold environments. Pellets formed with the
addition of carboxymethylcellulose and oven-dried at 100°C possess
adequate compressive strength and may be used as carburizers, e.g.
in steel manufacturing. In steel melting tests the pellets had a
high resistance to thermal shock.
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Clusters of petroleum coke pellets are made by the steps of
dispersing particulate carbon seed particles in a high boiling
petroleum oil, heating the seeded oil in a coking heater under
conditions of controlled cracking, and introducing the effluent from
the heater into a coke drum where the seed particles serve as
nucleating agents in the formation of clusters of petroleum coke
pellets.
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A method of calcining
green petroleum coke which includes separating the green coke having
a particle size of between 0.1 mm and 50 mm into undersized and
oversized fractions, pelletizing the undersized fraction with a
binder to form pelletized coke, combining the oversized fraction and
the pelletized coke to form a feed mixture, and calcining the feed
mixture to form calcined coke. The method includes the addition of a
pulverization step wherein all the green coke is pulverized before
pelletization and the pellets are then calcined to produce a
pelletized calcined coke product.
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Calcination is a high
temperature process for transforming the physical properties of raw
petroleum coke. Sized petroleum coke is stored in silos and fed into
a rotary kiln in controlled ratios. The calcination process raises
the material temperatures in the kiln to around 1200 to 1260°C
depending on the quality of raw cokes and specification of C P Coke
desired.
-
The material flows in a
counter direction to the temperature controlled hot gases fired from
a kiln burner. During the radiation heat transfer process, the
material comes across various reactive zones where it
de-moisturises, devolatalises and stabilizes with improved
crystalline structure. Operating parameters are controlled to impart
the required crystal structure, density and electrical conductivity.
|
Basics
-
About Pellet production
-
Pelletization process
Technology
-
Calcining
Technology
-
Calcining
plants
-
Patent -
Method for calcining green petroleum coke
-
Agglomeration of
Fine-Grained Petroleum Coke
-
More details of above
article
-
Petroleum Coke
Fines
-
Standard Operating Procedure for
Petcoke Grinding Units -
Petroleum Coke
- specification
-
Lignosulfonate used as coke binder
-
Polyethylene
terephthalate waste utilization
-
Patent - Cold
hardening of Pelets
-
Patent -
Pelletization & calcination of green coke using organic binder
-
Patent - Clusters
of petroleum coke pellets
-
Patent -
Pelletization and calcination of green coke using an organic binder
Project
Information
-
Project Details
-
Project Consultants
-
Technical Consultancy
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Turnkey Solution provider
-
Pelleting Presses for Agglomeration of Fines
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Custom agglomeration equipment Suppliers
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Lignosulfonate suppliers
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Pet Coke Briquettes Machine
-
Petroleum coke
powder binder
-
Petroleum
coke Calcining plant
-
Pelletizers
-
Pelletizing Disc
-
Grinding machine
Applications & Market
Scenario
-
Application - The
Tecnored Iron making process
-
Calcination -
company in India
-
Application -
Direct reduction Steel
-
Pulp & Paper Industry
-
Reducing agent
- Iron ore processing
-
The chromite
self-reducing pellets
-
North American Fuel Grade PetCoke
Exports
-
Petcoke
Suppliers
- Self-reducing blend of mill scale and
petroleum coke.
- Petcoke storage & environment issues
- Petcoke Calciners - companies
-
The Global supplier
-
Petroleum coke
fines supplier
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