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Sulphuric Acid on the WebTM Technical Manual DKL Engineering, Inc.

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Acid Plant Database  July 4, 2019

Owner PJSC Acron
Location Dorogobuzh
Background -
Website www.acron.ru
Plant -
Coordinates* 54° 56' 55" N, 33° 22' 10" E (site)
Type of Plant Sulphur Burning
Gas Source Elemental Sulphur
Plant Capacity 2100 MTPD
Emissions -
Status Design
Year Built -
Technology MECS
Contractor -
Remarks Heat Recovery System (HRS)
General -
References -
News May 7, 2019 - Smolensk regional governor Alexey Ostrovsky met Acron CEO Vladimir Kunitsky to discuss Dorogobuzh’s investment projects in the region (the Company is a member of Acron Group).  During the meeting, Mr Kunitsky told the governor about upgrades to the operating ammonia unit and the development of a new phosphate fertiliser production complex at Dorogobuzh.  As of today, the necessary equipment has already been purchased and preparatory work not requiring stoppage has been carried out for the ammonia unit upgrade. RUB 3 billion has already been invested in this project, which will cost a total of RUB 5 billion.  Mr Kunitsky announced that the launch of the upgraded ammonia unit is planned for late October or early November 2019. When finished, the project will increase output by 130,000 tpa and improve the unit’s efficiency and productivity by 20%.  In addition, the basic design for the new phosphate fertiliser production complex has been completed and the technical design is being prepared. RUB 400 million have already been invested out of a total of RUB 20 billion. During project implementation, the facility will introduce the best available technologies to ensure a high level of environmental safety. The development of a new phosphate fertiliser production complex at Dorogobuzh will create up to 400 new jobs and significantly increase the region’s tax base in the future.


November 28, 2017 - The contract covers licensing, engineering services and proprietary equipment. The new sulfur-burning sulfuric acid plant will have a capacity of 2100 tpd, and will use the MECS Heat Recovery System (HRSTM). The plant will be part of a new phosphate fertilizer complex, which PJSC Acron is planning to construct on the existing Dorogobuzh production site in the Smolensk region of Russia. The detailed design of the fertilizer complex will be carried out by PJSC Acron’s subsidiary, LLC Novgorodskiy GIAP. At the new fertilizer facility, PJSC Acron is planning to produce sulfuric acid, phosphoric acid, MAP, DAP and NPK fertilizers. SNC-Lavalin – a long-time partner of DuPont – will be responsible for providing the design packages and other licences and services for the project.

In the statement, DuPont claims that construction and startup are scheduled for completion in 4Q20, with the installation of the HRS equipment and sulfuric acid production set to commence in 2019.

The CEO of Novgorodskiy, Andrey Kolosovsky, said: “Our aim in using MECS services and technology in our design is to enable the Dorogobuzh facility not only to comply with environmental requirements on sulfur dioxide emissions, but to also recover maximum energy with minimal corrosion or maintenance using the MECS HRS technology.

“We take our responsibility to the environment and the communities in which we operate seriously. The MECS technology will allow us to be a good corporate citizen while saving energy and running the sulfuric acid plant efficiently.”

Eli Ben-Shoshan, Global Business Director, DuPont Clean Technologies, added: “We are delighted that proven MECS technology and engineering services have been selected for this prestigious project. MECS sulfuric acid and environmental technologies, engineering design, services and high performance equipment are world-leading and are used around the world in numerous fertilizer, oil and gas, chemical and non-ferrous metals applications to provide cleaner air and limit the impact of operations on the environment.”

MTPD - Metric Tonne per Day           STPD - Short Ton per Day
MTPA - Metric Tonne per Annum      STPA - Short Ton per Annum
SA - Single Absorption
DA - Double Absorption

* Coordinates can be used to locate plant on Google Earth