Using Biogas as a Chemicals Industry Feedstock Not Petrochemicals

There are times when the research world seems to be positively ill-informed of developments in tenchnology. Here is a case in point. The waste management industry has been talking about this for some years and several start up companies are now trading on this as a business plan. Here is the article which explains the recent research on using biogas as a chemical industry feedstock :

Combustible gases generated by organic matter in landfill sites or from biomass are commonly burned to generate electricity.

However, a Finnish team, writing in a forthcoming issue of the International Journal of Sustainable Economy about using biogas as a chemical industry feedstock , suggest that such biogas might be more usefully used as an alternative feedstock for the chemical industry. They explain that using biogas in this way would reduce our dependency on oil and gas-derived products and is commercially and technically viable.

To initiate such a switch to biogas from landfill and other sources, there may have to be subsidies akin to those implemented in food production. However, as the price of raw fossil materials – oil and gas – continues to rise, biogas will become a more competitive alternative feedstock and government support could gradually be reduced. “The use of biogas can be promoted by identifying existing industrial sites currently using fossil-based gas as raw material and by analysing whether they can utilise biogas,” the team says. “By constructing biogas producing unit at industrial sites potentially enables development of other biogas applications. Building pipelines to other biogas users, or vehicle uses, are potential options,” they add.

View the original article about using biogas as a chemical industry feedstock  here

There is no doubt that using biogas as a chemical industry feedstock will happen, it is merely a matter of time, as non-renewable resources are used up.

Understanding Biogas As an Alternative Fuel Choice

Biogas is a mix mainly of methane and carbon dioxide and is produced naturally when organic matter decomposes in the absence of oxygen. Biogas is produces from Land filling and through anaerobic digestion. Depending on place where it is produced, biogas can also be called swamp gas, marsh gas, and landfill gas or digester gas.




Anaerobic digestion is one of the methods through which biogas is produced. Biogas can be produced utilizing anaerobic digesters. Here, the plants can be fed with energy crops such as maize silage or biodegradable wastes including sewage sludge and food waste; whereas, the landfill gas is produced by organic waste decomposing under anaerobic conditions in a landfill. Gober Gas is the other form of biogas generated out of cow dung. This type of biogas is produced mainly in the households of India and Pakistan.

Biogas has many advantages over other alternative fuels. One of the main advantages of biogas is that the technology is cheaper and much simpler than those for other biofuels. Recovery of the methane is spontaneous as the gas automatically separates from the substrates. Dilute waste materials can be used as substrate. In the process of making biogas, organic pollutants are removed from the environment and used to generate useful biogas and this actually cleans the environment. Aseptic conditions are not needed for operation. Other advantage of biogas is that it will not produce any unpleasant odours. Electricity can be generated with biogas 24 hours a day. There is reduced risk of explosion as compared to pure methane and any biodegradable matter can be used as substrate for producing biogas.

As it has many advantages, biogas too has few disadvantages as well. One among them is that the product (biogas) value is rather low and this makes it an unattractive commercial activity. This process is not very attractive economically (as compared to other biofuels) on a large industrial scale. Biogas contains some gases as impurities, which are corrosive to the metal parts of internal combustion. Other major disadvantage of biogas is that its yields are lower due to the dilute nature of substrates.

Nevertheless, Biogas can become a great substitute for other conventional energy sources.

Clifton is a qualified mechanical engineer committed to finding alternative fuel sources that can be incorporated into everyday life. Alternative energy sources with reduced environmental effects will need to be discovered and used in order to generate the power requirements our lifestyle currently demands.