Joint Stock Company
Mozyr Oil Refinery
From state-of-the-art technology – to top quality products

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History
History
Joint-Stock Company Mozyr Oil Refinery started operation on January 30, 1975 when its first commercial product – motor gasoline - was obtained at the atmospheric distillation unit of LK-6U Facility No. 1 (that comprises atmospheric distillation, catalytic reforming, distillates hydrotreating, and a gas fractionation unit).

The original crude oil conversion rate was 50%.

The 1990s were the turning point not only in destiny of the once great Soviet power, but also in destiny of JSC Mozyr Oil Refinery. In those difficult times, we developed the concept of the refinery stage-by-stage revamp to increase crude oil conversion rate and product quality improvement in compliance with the European quality standards.

Initially, the refinery revamp included four stages, and the result of each stage completion was a new product or a feedstock for further processing.


First Stage of Revamp (1996 – 1998)

We targeted to improve the quality of crude oil distillation products – feedstock for secondary processes, to start producing high-octane unleaded gasolines and ecologically clean diesel fuel, to increase hydrogen production, and to cut energy costs.

At this stage, we succeded at:
  • Commissioning of Catalytic Reforming Section at LK-6U Facility No. 2 
  • Revamp of Vacuum Section at Bitumen Production Unit 
  • Revamp of K-102 Atmospheric Tower at LK-6U Facility No. 2 
  • Commissioning of Combined Steam and Gas Power Plant (CSGPP) and 15 MWt Power Generating Plant
  • Commissioning of PSA Unit

Second Stage of Revamp (1999 – 2000)

We targeted to cut energy costs, as well as to increase the yield of ecologically clean diesel fuel and hydrotreated VGO.

At this stage, we succeded at:
  • Commissioning of Atmospheric Residue Vacuum Distillation Unit 
  • Conversion of Diesel Hydrotreatment Unit at at LK-6U Facility No. 1 into VGO Hydroconversion Unit
  • Commissioning of Sour Water Stripping Section at Sulphur Recovery Unit

Third Stage of Revamp (2000 – 2003)

We targeted to stop blending such valuable products as diesel fuel and VGO to commercial fuel oil.

At this stage, we succeeded at:
  • Commissioning of Vacuum Residue Visbreaking Unit 
  • Revamp of Reaction Section of Diesel Hydrotreatment Unit at LK-6U Facility No. 2 
  • Redesign of Internals of Gas Fractionation Unit rectification columns at LK-6U Facility No.2
  • Redesign of catalyst system at Mild Hydrocracking Unit

Fourth Stage of Revamp (2004)
  
We targeted to increase crude oil conversion rate to manufacture products meeting global quality standards.

Successful start-up of Combined Catalytic Cracking Unit (MSCC) on January 30, 2004 was critical to the entire revamp program of JSC Mozyr Oil Refinery, as its operation increased overall refinery profitability, and made further revamp of the refinery possible.

JSC Mozyr Oil Refinery Development Program for 2005-2010

The program was aimed to bring benzene content in motor gasolines in compliance with EU standard requirements, to produce high purity benzene for chemical industry of the Republic of Belarus, to produce high-octane component (alkylate) for motor gasolines, and to process different brands of crude oil.

At this stage, we started up the following facilities:

2006 - Benzene Recovery Unit and Benzene Extract Distillation Unit
Results: lower benzene content in the entire pool of high-octane gasolines in compliance with EN 228 requirements, and a new product – petroleum benzene.
2008 - Combined HF Alkylation Unit
Results: a new product - alkylate, which is an environmentally friendly high-octane additive for gasolines, and and an extended export product scope.
2008 - Low Sulphur Crude Oil Tank Farm
Results: due to separate crude oil processing, we managed to fully charge the MSCC Unit with low sulphur fuel oil. Gasoline production output increased by 325 thousand tons a year.
2008 - Flare Gas Recovery Unit
Results: cost savings and minimization of adverse environmental impact.
2010 - MSCC Gasoline Hydrodesulphurization Unit
Results: reduction of sulphur content in the entire pool of high-octane gasolines to 10 mg/kg. 

Development program for 2011-2015

We targeted to produce Euro-5 motor gasolines, increase crude refining capacity up to 12 million tons a year, and to cut atmospheric emissions.

At this stage, we started up the following facilities:

2011 - Hydrogen Production Unit
Results: production of hydrogen from natural gas.

2011 - Diesel Oil Hydrotreatment Unit
Results: entire diesel fuel pool is in compliance with EN 590 requirements.

2012 - On-the-Spot Loading Facility
Results: higher efficiency of commercial products shipment and lower vapour release.

2012 – C5/C6 Cut Isomerization Unit
Results: production of isomerate ensured our Class 5 motor gasoline compliance with EN 228:2012. In addition, we excluded unprofitable gasoline-feedstock for pyrolysis and low-octane gasoline Normal-80 from our product list.

2013 - Brand New Atmospheric Residue Vacuum Distillation Unit
Results: increase of crude oil conversion rate and light petroleum products output.

2014 - AI-92 Intermediate Storage Tank Farm

2015 - Automated Control System for pollutants and greenhouse gas emissions from HF Alkylation Unit heater

2015 - Diesel Fuel Intermediate Storage Tank Farm and Methanol Storage Tank Farm. 

Development Program up to 2020

We target to produce motor gasolines in line with future European standards, and to further increase crude oil conversion rate.

In 2016, we started up the following production facilities:

C4 Cut Purification Unit
Results: manufacture of a new product – isobutane, which is a feed component for alkylate; expensive platinum catalyst service life increase, and alkylation unit equipment and piping corrosion rate decrease.

Sulphur Recovery Unit (Sulphur-2)
Results: due to sulphur recovery from H2S sour gases we managed to cut excessive emissions of sulphur dioxide and to keep the refinery operation safe and trouble-free.

Combined Unit for Production of High Octane Gasoline Components
Results: Gasoline with RON 95 and higher in compliance with EN 228:22008 (Class 5, Euro-5) requirements, and lower amount of imported high-octane components. 

Ongoing large-scale investment project - Construction of Heavy Oil Residue Hydrocracking Complex

We plan to process heavy oil residue at this facility and to benefit from the increased crude oil conversion rate up to 90%. Diesel fuel yield with sulphur less than 10 ppm will increase by more than 800 thousand tons. Production of fuel oil will decrease, and its quality will be in line with the latest European standards (sulphur content less than 1%). Hydrotreated vacuum gasoil yield will increase by 975 thousand tons.

We believe that the key for successful operation is to stay committed to our development program which includes fundamental revamp, modernization and technical upgrade of the existing facilities, construction of new process facilities, and manufacture of petroleum products in compliance with the latest requirements of European quality standards.