The question we all ask ourselves is: How can we remove hydrogen sulfide from biogas? In this article we talk about it.
Gas desulfurization methods have emerged since the mid-20th century and have accelerated with the global energy crisis that began in the 1970s. It is clear that this trend has not stopped today. H2S (hydrogen sulfide) is one of the causes of inhibitions in biogas production processes. In addition, it is a corrosive gas that reduces the useful life of cogeneration engines and often causes difficulties in anaerobic digestion plants.
METHODS TO REMOVE HYDROGEN SULFUR ACID (H2S)
These methods can be basically grouped into:
- Absorption using inorganic and organic chemical compounds
- Adsorption by physical methods
- Membrane filtration
The selection of one or another method depends on the economic analysis and the financial capacity of the company to deal with the problem. In general, the main disadvantages are that they are processes with high operating and investment costs.
In addition to the methods mentioned, it should be noted that thanks to technological advances, additives have been developed that solve this problem in a more economical and sustainable way. One of these additives is the OPS, framed in the circular economy.
HOW TO REMOVE HYDROGEN SULFUR ACID FROM BIOGAS THROUGH A LOW-COST ADDITIVE.
OPS are particulate iron (nZVI) that can be used as an additive in the digester itself. OPS have the ability to remove hydrogen sulfide by up to 99%
Yes, just as you hear it! By simply adding a small amount of OPS to the digester, your problems will go away.
More specifically, OPS act as follows: They react with sulfur and sulfur compounds in such a way that, depending on the pH, they can precipitate or remain dissolved, preventing the formation of hydrogen sulfide (H2S).
In addition to removing hydrogen sulfide, OPS also improve the performance of the anaerobic digestion process and, consequently, an improvement in the biogas and biomethane produced. In this article we talk about it.
If you are looking for a profitable, sustainable and efficient way to remove hydrogen sulfide from biogas production and thus solve your problems.
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