OTHER LISTINGS
HOUSTON
MAZUT
PETCOKE
Petroleum coke (petcoke) is a carbon-rich solid byproduct of crude oil refining. Derived from the thermal cracking of heavy residual oils, it is highly energy-dense and resembles coal. Petcoke is primarily categorized into two main types: fuel-grade (used for power and cement production) and calcined-grade (used in aluminum and steel manufacturing).
ORIGIN
Mazut M-100 is almost exclusively produced in the Russian Federation, Kazakhstan, Azerbaijan, and Turkmenistan, and is heavily utilized as an equivalent to Number 6 Fuel Oil (Bunker C). In Western markets, it typically requires further blending or cracking to produce lighter distillates like diesel.
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PRODUCT DESCRIPTION
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Key Specifications (GOST 10585)
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The exact composition and physical properties vary slightly depending on the sulfur grade, but standard parameters for Mazut M-100 include:
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Viscosity (at 50°C): Max 118° Engler
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Pour Point: Max 25°C to 42°C
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Flash Point: Min 110°C (in an open cup)
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Moisture Content: Max 0.5% to 1.0%
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Sulfur Content: Ranges from 0.5% (Low Sulfur), to 1.0% (Regular), and up to 2.5% to 3.5% (High Sulfur) depending on the source feedstock.
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Ash Content: Max 0.05% to 0.14%
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Net Calorific Value: Min 9,700 kcal/kg
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KEY CHARACTERISTICS
Petcoke can be classified based on its physical and chemical properties:
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Fuel-Grade Petcoke (Green Coke): Typically high in sulfur and heavy metals, this variety is used as an energy source in power plants, cement kilns, and industrial boilers due to its high heat value and low ash content.
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Calcined Petcoke (CPC): "Green" (uncalcined) petcoke is heated to high temperatures to drive off remaining volatile matter and increase electrical conductivity. This produces high-purity carbon used to manufacture carbon anodes for aluminum smelting and titanium dioxide production.
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Needle Coke: A highly specialized, crystalline form of petcoke used to manufacture graphite electrodes for electric arc furnace (EAF) steel production.
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Specifications and Standards
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The GOST 10585 standard mandates rigorous requirements for Mazut M100 regarding viscosity, impurities, and sulfur content:
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Core Technical Specifications
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Kinematic Viscosity (at 50°C): Max 118 mm²/s
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Flash Point (Closed Cup): Not less than 110°C
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Pour Point: Max 25°C
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Ash Content: Max 0.14%
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Water Content: Max 0.5%
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Mechanical Impurities: Max 0.1%
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Sulfur Classifications
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The most defining metric for grading Mazut M100 is its sulfur content, which dictates the market value and environmental acceptability. Under GOST standards, it is graded into several categories: [1, 2]
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Very Low Sulfur: Max 0.5%
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Low Sulfur: 0.5% – 1.0%
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Normal Sulfur: 1.0% – 2.0%
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High Sulfur: 2.0% – 3.5%
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Primary Applications
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Power Plants: Fuels massive utility boilers to generate electricity.
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Industrial Boilers: Powers steam generation in factories, paper mills, and chemical plants.
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District Heating: Heats large residential complexes and cities via centralized thermal networks.
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Marine Fuel: Powers large vessels equipped with low-speed steam turbine or diesel engines.
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Asphalt Production: Acts as a raw material blending component for road-paving bitumen.
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Critical Operational Requirements
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Preheating Needed: Must be heated to 90°C–130°C to reduce viscosity enough for pumping and atomization.
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Storage Needs: Requires specialized heated storage tanks to prevent the fuel from solidifying.
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Emissions Equipment: Demands robust exhaust scrubbing due to sulfur and ash content.
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Mazut M100 GOST 10585 is a highly viscous, heavy residual fuel oil that sits at the bottom of the petroleum refining spectrum. Compared to other fuels, it is cheaper, more energy-dense per volume, and far more demanding to handle, often requiring specialized preheating infrastructure.
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Because it is a "dirty oil" distillation remnant, it differs significantly from lighter distillates and even some Western heavy fuel oils in terms of its crude source, sulfur profile, and global trade standards.
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