Petroleum coke has a high carbon content and is used in many industrial applications. It has rich physical and chemical properties and can be used in a variety of ways. It is a fuel that can be used in power plants because of its high thermal efficiency. It also has numerous applications in the steel industry, including use as a coke reducing agent in iron smelting blast furnaces. It is also an excellent raw material for production of graphite electrodes.
Currently, the majority of the petroleum coke produced in the United States is utilized as a fuel for power plants and cement kilns. CPC type is popular with the cement industry. Its cost is lower than that of the alternatives. In addition, it has several performance enhancement properties which increase the durability and strength of finished concrete. Due to its lower sulfur content and higher calorific value, it is a great substitute for coal. However, the high sulfur content in CPCs presents a serious problem when it is utilized as a fuel in iron making processes that utilize a melter gasifier. Sulfur excess can affect the metallurgical processing and also the final products, such as glass, ceramics and concrete.
The invention is a method of refining crude oils and producing steel that is environmentally friendly by using high-carbon petroleum coke from delayed coking processes in iron making processes which use a melter gasifier. The petroleum coal is completely consumed in the gasifier to safely dispose of heavy metals, sulfur, and other contaminants. This process uses petroleum coke instead of coal which is known to have many negative effects on the environment.
Green delayed coke is petroleum coke made under special technological conditions, using specific raw materials. This coke has a low nitrogen and sulfur content, a low amount of ash and high calorific properties. This is an excellent raw material that can be used to make ultra-high energy graphite electrodes for electric furnaces.
Heat treatment is applied to the high-carbon petroleum coke at temperatures above 2000 degrees Celsius in order to transform its amorphous structure into a densified crystalline structure with reduced pores and voids. The process is called graphitization. This graphitized petroleum is superior to other raw materials because it has a crystalline pattern similar to that of graphite. Its advantages include being extremely durable, good thermal conductivity and conductivity, as well as excellent lubricity. It also has a high level of reactivity, and is stable for electrocatalytic processes such as the hydrogen evolution reaction or oxygen evolution reaction. Its excellent electrical characteristics also contribute to its high calorific value.
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