Petroleum Coke
1. Product introduction
Nickname: raw coke
Properties: irregular shape, size is differ, black block, with metallic luster, coke particles with porous structure, the main elements for carbon.
Introduction: it is after distillation according to quality, and the oil separation of crude oil, heavy oil by cracking process, transformed into the product.Its main component is carbon.Petroleum coke is widely used in metallurgy, chemical industry and other industries as raw materials for the electrodes or production of chemical products.According to its processing method is divided into raw coke and burning coke (raw coke through 1300 ° firing, and calcined burnt);According to its sulfur content is divided into high sulfur coke (above 4%), sulfur in coke (2% 4%), low sulfur coke (less than 2%);According to its structure form is divided into the sponge coke, needle coke, the projectile coke, coke breeze.Gelatin sponge as spongy, also called normal coke;Dense needle coke as fibrous, also known as the high quality coke.
2. The production process
Petroleum coke is a crude oil after distillation of crude oil, or other heavy oil as raw material, by the high velocity through 500 ℃ + / – 1 ℃ heating furnace tube, the cracking and condensation reaction in the tower of coke, then through cold coke coke at a certain time, in addition to the coke producing petroleum coke.
3. Our strengths
1) the big goods directly from the oil refinery or port, no transit link.
2) perennial cooperation with the team, without adding extra premium transportation safety.
4.Productindicators
| element | First class | 1A | 1B | 2A | 2B | 3A | 3B |
| sulfur | No greater than 0.5% | 0.5% | 0.8% | 1.0% | 1.5% | 2.0% | 3.0% |
| Volatilization | No greater than 12% | 12% | 14% | 14% | 17% | 18% | 20% |
| ash | No greater than 0.3% | 0.3% | 0.5% | 0.5% | 0.5% | 0.8% | 1.2% |
| moisture | 3% | 3% | 3% | 3% | 3% | 3% | 3% |
| density | No greater than 2.08% | 2.13% | 2.13% | 2.13% | 2.13% | 2.13% | 2.13% |
| Powder of coke | 25% | 25% | 25% | 25% | 25% | 25% | 25% |
| Silica content | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% |
| Vanadium content | 0.15% | 0.15% | 0.15% | 0.15% | 0.15% | 0.15% | 0.15% |
| The iron content | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% | 0.08% |
Delay petroleum coke in the delayed coking unit refers to the production of coke, also known as the common coke, there is no corresponding national standards.Now the domestic production enterprise mainly on the basis of the original industry standards promulgated by the China petrochemical corporation SH0527-92 production (see chart).This standard is mainly according to the classification of petroleum coke sulfur content, the first class, 1 coke is suitable for the steel industry to make ordinary power graphite electrode, can also be applied to aluminum for aluminum smelting carbon;2 coke used as cell in aluminium industry (furnace) used in the production and electrode paste electrode, the no. 3 coke is used as the production of silicon carbide (abrasive) and calcium carbide (carbide), and other carbon products, also used in the manufacture of aluminium electrolytic cell anode block and used for blast furnace carbon lining brick or furnace bottom construction.
5.Application field
1) when the boiler, steam electric symbiosis, cement kiln fuel, etc
2) the production of aluminium anode electrode
3) directly as a chemical elements such as phosphorus, calcium carbide, silicon carbide, carbon source
4) made of production element phosphorus, titanium dioxide, carbide, silicon carbide furnace electrode
5) made of graphite
6.Common question
Petroleum coke and coal in comparison, what are the advantages?
| project | unit | Petroleum coke | coal |
| Calorific value | Btu/lb | 13,000-15,000 | 10,500-13,000 |
| volatiles | wt％ | 4-18 | 6-40 |
| sulfur | wt％ | 2.5-5.5 | 0.7-4 |
| ash | wt％ | 0.3-0.5 | 3-19 |
| The moisture | wt％ | 8 | 1.5-5 |
| Carbon content | wt％ | 82-97 | 49-79 |
| density | g/cm3 | 1.2-1.8 | 1.36 |
| hardness | HGI | 35-80 | 60-7 |