COVID-19 is a pandemic which has affected the global construction sector and led to reduced industrial activities, leading to a decrease in demand for calcined oil coke. But, the growth of the market will be enhanced by the increasing opportunities in paints & coatings, steel and fertiliser industries.
Aminco understands and listens to each customer's operating concerns, as well as the requirements of the delayed coking units. This allows us to offer the best feedstocks to minimize the smelter's power consumption.
Calcined petroleum is used for producing carbon products like graphite electrodes, thermal pastes, ferro-alloys and other industrial applications. Fuel grade petcoke is also used in refinery boilers to generate steam and hot water.
The calcining transforms GPC in a highly electrically conductor form of Carbon with a low reaction to CO2 and air (oxygen). CPC is used as anode for primary aluminum smelting.
It was necessary in the past to run the kiln at a high temperature for good calcination, i.e. a coke density greater than 2.0 g/cc and a Lc above 22. This, however, results in substantial dust loss carried off with the gas exhaust and product discharge.
The present rotary calcining process has been developed to afford significant improvement in the calcination of a broad range of petroleum cokes having volatile contents from 7 to 13% or more. This process offers a number of advantages including a significant increase in the distance that coke travels through a zone of intense calcination.
The baking of anodes is a vital part of the aluminium production process. It is used for preparing anode paste to be electrolyzed into aluminum. Anode baking is a chemically intensive process that involves the addition of sulfur dioxide and water. The sulfur dioxide is used to remove impurities and protect the aluminum anode from corrosion. The water is necessary to hydrate and increase the viscosity.
The global calcined petroleum coke market is characterized by a high level of competition. Market leaders are adopting a range of growth strategies such as product launches, innovations, mergers, and acquisitions. In addition, they are focusing on forming long-term partnerships with direct end consumers. They will be able to expand their client base and increase revenues.
As demand for petroleum coke in end-use industries such as paints & coatings, steel and fertilizer is expected to grow, key players in the calcined petroleum coke market are gearing up for expansion. Some of their growth strategies include product launches, acquisitions & mergers, partnerships and intense R&D.
Fuel baking is the process that involves calcining petroleum in a cylindrical rotary oven, with natural gas and refinery gas used as primary heating sources. Heating oil is used as a secondary source of heat. The resultant anode petcoke has low levels of sulphur and other metals, and is used for the electrolytic production aluminum.
The anode-grade coke is continuously fed into rectangular steel casings that are typically 68m, 2m and a height of 1m. The baked carbon paste is fed into the molten aode via horizontal or vertical steel pins. The anodes produced by this process have high electrical resistivity, and low temperature coefficients of expansion.
The pyrolysis of organic materials generates carbon, which can be used for fuel or as a raw material in many industrial processes. The pyrolysis method is also used for purifying laboratory or industrial equipment contaminated with volatile chemicals. Pyrolysis usually takes place in the absence or water and oxygen.
Global calcined oil coke is expected to grow over the next five years, mainly due to construction in emerging economies. The rapid pace of urbanization and population growth in these regions is boosting the demand for infrastructure projects, such as roads, railways, airports, and power plants.
Oil refineries using heavy crude blends have a tendency to produce more of resid. Resid is a coke product. These refineries use delayed coking which produces a higher quality GPC with less sulfur and trace elements. This GPC is then used by the calciners to bake anodes. Independent or merchant calciners often blend different qualities of GPC together prior to shipment to smelters. This practice is of particular importance for rotary calciners as they have different bulk density profiles and porosity characteristics.
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