The use of calcined petroleum coke in the cement industry has many benefits. It produces less carbon dioxide than coal and has high calorific value. It is also a cheaper fuel than natural gas.
The global calcined petroleum coke market is growing at a CAGR of over 3 percent. This is largely due to the increased demand for anode grade petcoke from the aluminum industry as a recarburizing agent.
The global calcined petroleum coke market is growing due to expanding construction activities and infrastructure development worldwide. However, stricter environmental regulations and concerns about carbon emissions could hamper the growth of this market.
Fuel grade petcoke is used in cement kilns and in industrial boilers to produce steam. It is a cheaper and more efficient alternative to coal. In addition, petcoke is a source of carbon products and a component in bricks and asphalts. It can also be processed to produce chemicals such as methanol, formaldehyde, and acetic acid.
The blending of CPC from different sources is becoming more common in order to mitigate supply risks and optimize economics. For example, a smelter that uses both low and high S GPC may need to blend it with shaft and/or rotary CPC to balance porosity and bulk density profiles. The cost of adding a blending system is relatively low compared to the total smelter investment and can pay for itself quickly.
In a typical cement plant, process electricity is used to power the crushers and grinders. Using renewable energy sources to run these units would reduce the climate change impacts associated with cement production. In addition, implementing waste heat energy recovery systems could further lower emissions and energy consumption from the preheater, rotary kiln, and clinker cooling processes.
Fuel grade coke is a solid byproduct of petroleum refining that can be burned as an alternative to coal in power plants. It can also be used to make carbon anodes for aluminum smelting and graphite electrodes for steel making. It is also used as a substitute for natural gas in refinery boilers to generate steam and electricity.
A recent characterization study of the exposure risks to human health from calcining facility emissions indicated that, even with high S category A calcined cokes, exposures at distances up to 3 km from the calciner were well below public health air quality standards. However, exposures at sites closer to the calciner were higher.
Calcining processes, including handling and storage of raw petroleum coke, result in particulate matter (PM) and gaseous emissions that may pose a risk to human health. PM pollutants can negatively impact human respiratory and cardiovascular systems. PM levels associated with calciner facilities have been shown to increase in communities near the plants.
In addition to this, coke residue concrete also has a high hydration heat and shortens the setting time of cement. This results in a higher water/cement ratio, leading to reduced strength. Furthermore, the CaSO4II in coke residue plays a retarding role and can cause weak hydration of silicates.
This leads to the formation of Torbay mullite, which fills spaces between particles and improves strength. Due to this, more smelters are utilizing blended GPC from various suppliers. The need to blend is especially important for rotary and shaft kilns, which have different porosity and bulk density profiles. In addition, the recent increase in sulfur levels has led to more smelters adding SO2 scrubbing systems.
The global calcined petroleum coke market is expected to witness robust growth in the coming years due to growing construction activities and infrastructure development across emerging economies. Additionally, rising demand for electricity will fuel the adoption of petcoke in power plants as a cost-effective energy source. Its high energy content, fuel stability, and low risk of combustion during transportation are some of the factors driving its adoption.
The use of petcoke residue in concrete production can reduce cement clinker consumption and related carbon emissions, as well as save valuable land resources. Its pozzolanic effect can also improve the quality of concrete, as it promotes hydration and increases its strength.
A number of companies produce calcined petroleum coke, including Rain Carbon Inc, Metso Corporation, Atha Group, Cocan Graphite, Shamokin Carbons FZC LLC, and Garcia Munte Energia SL. These companies are focusing on R&D to develop innovative products and increase their customer base. They are also focusing on improving their supply chain management to cut operating costs and boost profits.
English
Write a Message