Production and use of a premium fuel grade petroleum coke
First Claim
1. A process of producing a coke fuel, said method comprising the steps:
- (a) obtaining a coke precursor material derived from crude oil, and having a volatile organic component; and
(b) subjecting said coke precursor material to a thermal cracking process for sufficient time and at sufficient temperature and under sufficient pressure so as to promote the production of sponge coke and to produce a coke product having volatile combustible material (VCM) present in an amount in the range of from about 13% to about 50% by weight;
wherein said coke product is comprised of sponge coke in an amount in the range of about 40% to 100% by weight.
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Abstract
A premium “fuel-grade” petroleum coke is produced by modifying petroleum coking technology. Coking process parameters are controlled to consistently produce petroleum coke within a predetermined range for volatile combustible material (VCM) content. The invention includes a process of producing a coke fuel, the method comprising steps: (a) obtaining a coke precursor material derived from crude oil and having a volatile organic component; and (b) subjecting the coke precursor material to a thermal cracking process for sufficient time and at sufficient temperature and under sufficient pressure so as to produce a coke product having a volatile combustible material (VCM) present in an amount in the range of from about 13% to about 50% by weight. Most preferably, the volatile combustible material in the coke product typically may be in the range of from about 15% to about 30% by weight. The present invention also provides methods for (1) altering the coke crystalline structure, (2) improving the quality of the coke VCM, and (3) reducing the concentration of coke contaminants. Fuels made from the inventive coke product and methods of producing energy through the combustion of such fuels are also included. Finally, novel environmental control techniques are developed to take optimal advantage of the unique characteristics of this upgraded petroleum coke.
209 Citations
21 Claims
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1. A process of producing a coke fuel, said method comprising the steps:
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(a) obtaining a coke precursor material derived from crude oil, and having a volatile organic component; and
(b) subjecting said coke precursor material to a thermal cracking process for sufficient time and at sufficient temperature and under sufficient pressure so as to promote the production of sponge coke and to produce a coke product having volatile combustible material (VCM) present in an amount in the range of from about 13% to about 50% by weight;
wherein said coke product is comprised of sponge coke in an amount in the range of about 40% to 100% by weight. - View Dependent Claims (2, 3, 4, 5, 11, 12, 19, 20, 21)
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- 6. A method for producing energy, said method comprising combusting a fuel, said fuel comprising coke, said coke comprising sponge coke in an amount in the range of about 40% to 100% by weight and having volatile combustible materials in amount in the range from about 13% to about 50% by weight.
- 15. A coke comprising sponge coke in an amount in the range of about 40% to 100% by weight, said coke having volatile combustible material (VCM) present in an amount in the range of from about 13% to about 50% by weight.
Specification