Gas cleaning units (desulphurazation units) are primarily used for removal of sulphur (H₂S) from biogas. Sulphur in biogas causes environmental pollution and serious corrossion problems in pipe systems, heaters and gasmotors.

The process

The H₂S loaded gas is passed through a desulphurization reactor tower containing specifically formed gas cleaning mass (medium) in pellet form. This leads to a chemical reaction between the sulphur in the gas and the cleaning medium containing ironoxide; the interaction results in the chemical absorption of sulphur into the cleaning medium, ironoxide becomes ironsulphide. The controlled addition of compressed air into the crude gas causes a constant regeneration of the cleaning medium as elementary sulphur forms.

Contact

Dr. Roland Stehle
Offer Calculation

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Tel. +49 7131 1589 31

Area of application

Desulphurization of:

• gas purification in communal WWTPs / sewage plants
• agriculturual biogas from anaerobic industrial water treatment plants
• disposal site gases
• biogases from fermentation of waste products

Advantages in summary:

• an operationally safe and effective system proven over decades
• high cleaning performance with low operational costs
• low pressure loss is achieved by optimum pellet form
• loading of the plant with gas cleaning mass during operation
• high loading rates and fine cleaning achieved by the very effective reaction of the cleaning medium
• problem free and cost effective disposal of used medium

Gas cleaning unit for continuous operation

This gas cleaning unit type for desulphurization of gas can be delivered up to a length of 12 m and a diameter of 3.8 m. Depending on sulphur concetration and gas cleaning size the cleaning performance can add up to 132,000 Nm³/d.

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