Coke is a solid fuel. It is obtained by dry distillation of coal at a high temperature of 1000℃. The main component is fixed carbon, followed by ash, which contains almost no volatile matter and sulfur. Silver gray with metallic luster. Hard and porous.
Its calorific value is mostly 26380 ~ 31400 kj /kg (6300 ~ 7500 kcal/kg). According to different uses, there are metallurgical coke, casting coke and chemical coke. According to the size, there are lump coke, broken coke and coke chips. It is mainly used for smelting steel or other metals, and can also be used as raw materials for making water gas, gasification and chemical industry.
20 17,10127 October, the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization was preliminarily sorted out for reference, and cola was produced in the list of carcinogens. The most important thing in price analysis is to study the relationship between supply and demand. The relationship between supply and demand refers to the relationship between supply and demand of commodities under the condition of market economy, and it is a reflection of the relationship between production and consumption in the market. When supply exceeds demand, its price falls, and vice versa. At the same time, price will affect supply and demand in turn, that is, when the price rises, supply will increase and demand will decrease, on the contrary, demand will increase and supply will decrease, so price and supply and demand are interactive.
The relationship between supply and demand is in a tight balance, and the leading factor of tight coke supply in China is no longer demand expansion, but supply shortage caused by the dual constraints of insufficient transportation capacity and continuous shortage of resources. However, we should also see that while the demand for coke in developed countries has decreased due to the economic crisis, the rapid economic growth in developing countries will make up for the gap in demand reduction in developed countries.
Coking coal (mbth: coking coal, also known as metallurgical coal) is a kind of medium-caking and strong-caking bituminous coal with low volatile content. Coking coal is a general term for bituminous coal with high degree of coalification and good coking in China National Coal Classification Standard.
Coking coal is moderately metamorphic bituminous coal. Romax is 1.35%. Because of its strong cohesiveness, it can produce high-quality coke with high strength, large size, high strength and few cracks, which is the best raw material for coking. In the world, coking coal resources are scarce and must be protected, so coking coal is rarely used alone. In China, the typical coal types of the first kind of coking coal are Hebei Fengfeng No.2 Mine, Shanxi Gujiao Xiqu, Heilongjiang Jixi Didao, Anhui Huaibei Zhangzhuang and Sichuan Panzhihua Dabaoping Coal. The typical coals of the second kind of coking coal are Tiechang coal in Tonghua, Jilin Province and Hetangou coal in Baotou, Inner Mongolia. Benxi in the northeast, Tangshan in Hebei, Jingxing in Shandong and Xinwen in Shandong are all famous coking coal producing areas.
In recent years, the quantity of coal imported from China has gradually increased, but the coking coal imported from China will face greater competitive pressure in the future. China's coking coal imports are still concentrated in three major sources, with Australian, Mongolian and Russian accounting for 78% of coking coal imports. With the gradual recovery of the global economy, China's imported coking coal sources may face fierce competition. Imports from the United States and Canada may face a sharp decline, and imports from Australia will also face a downward trend. Mongolia will become the main source of coking coal, but the growth rate is limited. Russia will have a certain growth in the future, but the growth rate is also limited. Generally speaking, the import source of coking coal in China may turn to Mongolia, Russia and other countries, but the import growth rate is still small. It is predicted that the international coking coal price will show an upward trend in the future. Connecting with the spot and international market to promote the price increase of coking coal in enterprises. Driven by the recent spot price increase, the coal price of coking coal enterprises has an upward momentum. The import of domestic coking coal is gradually increasing, and the international market will gradually connect with the domestic coking coal market.