Coke-oven batteries #5, 2, 4, 1 and 6 are reconstructed. Some of chemical shops are renovated; a new control room and an ammonia-sulfate department are built.
1979-1986
Heating walls undergo major renovations and are partially transposed. Coke-oven batteries #5 and 2, previously halted, are re-launched.
2002-2005
The first line of the benzene-rectifying shop’s benzene-scrubber department with the capacity of 100,000 cubic meters of gas per hour is re-launched after reconstruction, which allowed the plant to boost raw benzene production.
2003
Chelyabinsk Metallurgical Plant’s by-product coke department is detached and made an independent enterprise — Mechel Coke.
A new modern coke-oven battery #7 is launched after reconstruction. The unit’s production capacity is 495,000 tonnes of coke a year. Reconstruction works were also held in the coal preparation shop and recovery shops #1 and 2.
2006
The coal preparation shop’s proportioning department is equipped with coal silo meters with automatic control over the furnace charge preparation process. A drum crusher in the preliminary crushing department is replaced. The car dumper #1 is reconstructed and its crushing-and-milling machines replaced.
2007
The coke-oven battery #4 is re-launched after reconstruction. The battery’s production capacity is 440,000 tonnes a year. Mechel becomes Russia’s first company to resume coke-oven battery operation during the crisis.
2009
Mechel Coke is managed by Mechel Group’s coal division Mechel Mining Managing Company.
The coke-oven battery #6 is re-launched after reconstruction. The unit’s production capacity is 470,000 tonnes of coke a year.
2010
The plant launched new equipment in its benzene department. Equipment upgrades ensure that the plant is compliant with ecological requirements.
The plant stopped making one of its side products — pressed naphthalene. This move reduced naphthalene emissions by 30%.
2015
Mechel-Coke, Russia’s Natural Resources and Environment Ministry, Federal Supervisory Natural Resources Management Service (Rosprirodnadzor) and the Chelyabinsk Region’s authorities signed an agreement on cooperation in environment protection. In compliance with this agreement, the plant began implementing a series of environment-friendly measures to reduce emissions.
2016
The plant completed technical revamping of its benzene department, creating a closed coke gas cooling cycle in the heat-exchange equipment. This was the plant’s biggest project within the framework of its participation in Russia’s Ecological Awareness Year, and it enabled the plant to completely eliminate a major source of benzene, phenol, naphthalene and hydrogen sulfide emissions.
2017
In January, Mechel-Coke completed the upgrade of its coke-pitch department #3. This helped improve the facility’s energy efficiency and ecological safety.
In August, Science Research Institute Atmosphere (St. Petersburg) launched an independent ecological audit of the plant. This voluntary research is part of the cooperation agreement signed by Chelyabinsk regional authorities, Federal Supervisory Natural Resources Management Service (Rosprirodnadzor) and Mechel PAO to ensure safe and socially responsible functioning of Mechel’s facilities.
In December, Mechel-Coke launched its upgraded coke-oven battery #7. The upgrade will enable the plant to reduce waste emissions during coke production.
2018
Mechel Coke has reconstructed its coke battery #8, replacing two gasholders. The renewed battery best available technologies, including sealing gas exhaust ducts and smoke-free coal loading.
2020
