Parsons have installed a Scrubbing Plant on a Pilot Recycling Facility in the UK. Whilst the process is confidential and the subject of a live Non-Disclosure Agreement Parsons can confirm that the installation has been operational since 2024 and is working effectively. The process recovers critical minerals from old lithium batteries.
2-Stage Acid Gas Scrubber System showing the venturi scrubber, packed column scrubber, and discharge stack installed inside factory building
The pollutants being absorbed from the gas stream are vapours of Sulphuric Acid (H2SO4), Hydrogen Fluoride (HF), and metal oxide particulates. The scrubber system absorbs these pollutant compounds from the process LEV (local exhaust ventilation) gas extract to enable discharge of clean air to the atmosphere. The scrubbing plant is a two-stage scrubber system, with the first stage venturi scrubber capturing particulates, whilst the second stage packed column scrubber removes the gaseous pollutants from the gas stream.
The client decided to rent the gas scrubbing plant to give them process flexibility to enable research and development trials to take place under various operating modes. The Parsons “Clean Air Rental” equipment package was not only tailored for the specific requirements which were known at the outset, but Parsons are also able to offer equipment changes/modifications to suit changes in operating requirements as the trials take place and the process parameters become more defined.
The gas phase was toxic and corrosive which demanded corrosion resistant materials of construction. There was an additional challenge on this project due to the presence of Hydrogen (H2) in the gas phase at concentrations in excess of 4% v/v which is above the lower explosive limit (LEL). Chemical Engineers at Parsons reviewed the process parameters and selected equipment to comply with the ATEX requirements and defined the “Safe” areas and Hazardous Areas.
The installation was completed quickly as Parsons holds a wide variety of equipment in stock to create a bespoke equipment package. The equipment was installed by Parsons in-house Installation Technicians. On completion the Installation was Commissioned by Parsons Chemical Engineers, handing the completed plant over to the client about 4 weeks in advance of the client expected completion date.
Parsons were also responsible for training the clients operatives and familiarizing them with a detailed set of operating instructions for the scrubber system. Parsons also attend site on a monthly basis to service the equipment and are on standby to offer next day breakdown service as part of the fixed price monthly rental charge.
Parsons have nearly 50 years operational experience of Gas Scrubber Design, Manufacture, Installation, Operation and Servicing, and operate in a full range of industries in the UK and many overseas installations in Europe, Middle and Far East. We welcome the opportunity of discussing any requirements you might have for Gas Scrubbing and Odour Abatement.
Please get in touch with your queries about our services and how they can make a significant impact on your business.
