Biological Desulfurization

Biological gas purification is the process of purifying the biogas without chemical additives. Therefore, it represents an interesting option compared to chemical alternatives with high operating costs.

Biogas and landfill gas always contain a proportion of hydrogen sulphide (H2S). Said portion of H2S is usually in the range of 1,000 to 8,000ppm, but can also reach 2% by volume or more. 99% of this H2S must be removed from the gas, either for environmental reasons or due to the risk of corrosion for downstream assemblies.

The biological desulphurization process is a cost-effective yet highly efficient solution. This is a biological process that requires no chemicals and virtually no consumables. If a limited amount of air (approx. 10 -15 % air) is added in relation to the gas flow rate, special bacteria (e.g. Thiobacillus and Solfolobus) convert the H2S into elemental sulphur and sulphuric acid

Biological gas purification for H2S elimination
No disposal costs
Fully automatic version
No chemical consumption (NaOH, H2O2, Fe3cl)

Skid-mounted design

Select the corresponding specification based on the flow rate

Biogas Biodesulfurization Tower Specification Table

Hydrogen sulfide (ppm)	2000	3000	4000	5000
Flow rate (Nm3/h)				150
			200	200
	250	250	250	250
	300	300	300	300
	350	350	350	350
	400	400	400	400
	450	450	450	450
	500	500	500	500
	550	550	550	550
	600	600	600	600
	650	650	650	650
	700	700	700	700
	750	750	750	750
	800	800	800	800
	850	850	850	850
	900	900	900	900
	950	950	950
	1000	1000

* Higher biogas flow and hydrogen sulfide content can be customized

Biogas Technology

If you need solutions for Manure and Agricultural biogas projects, we'd like to hear from you.

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