Coke is converted from coking coal through high-temperature retorting in coke oven. It consumes about 1.33 tons of coking coal to produce 1 ton of coke. Coke can be used as reducing agent, energy and carbon supply agent for blast furnace ironmaking, cupola casting, ferroalloy smelting and non-ferrous metal smelting, as well as carbide production, gasification and synthetic chemistry. According to statistics, more than 90% of the world's coke output is used for blast furnace ironmaking. Metallurgical coke has become one of the necessary raw materials for modern blast furnace ironmaking technology, known as the "basic food" of the steel industry, and has important strategic value and economic significance. China is a traditional major producer and exporter of coke. In recent years, the output of coke has always accounted for about 50% of the world's coke output. In addition to being low in 2009 and 2010, the export volume accounts for about 60% of the world's trade volume all the year round. According to the statistics of China Coking Industry Association, the output of coke in 2007, 2008 and 2009 reached 330 million tons, 327 million tons and 355 million tons respectively, The export volume is 14 million tons, 12.13 million tons and 540000 tons. Coke is one of the few resources and energy products that rank first in the world all the year round and have important influence in China.
In recent years, among all coke consuming industries in China, only the iron and steel industry's coke consumption increased, from 73.95% in 2000 to 85.00% in 2007, up 11.06 percentage points; The chemical industry dropped from 10.10% to 7.32%; Non ferrous smelting decreased from 2.00% to 1.55%; General equipment manufacturing industry dropped from 1.90% to 1.86%; Other industries decreased from 8.60% to 3.43%; Agriculture decreased from 1.38% to 0.27%; The living consumption decreased from 1.31% to 0.25%; Other categories decreased from 0.75% to 0.32%.
Coke, as an important raw material of the steel industry, plays an important role in the national economy. Moreover, the price fluctuation is large, the industrial chain is long, the number of participating enterprises is large, and the scope of influence is wide. Spot enterprises have a strong demand for risk aversion and investment. Dalian Commodity Exchange (Weibo) The introduction of coke varieties steel products Futures will work together to improve the variety system of the steel industry, forming a relatively closed variety hedging chain, and DCE will provide a more convenient and functional risk aversion place for relevant enterprises.
