• Removing carbon dioxide from biogas
  Producing biogas from agricultural, municipal waste or energy crops is one of the techniques for obtaining renewable energy. Removing carbon dioxide (CO2) from biogas is an important process to improve the quality of biogas and its suitability for various applications. There are several methods of removing CO2 from biogas, including: Chemical absorption where the biogas is passed through a chemical that absorbs the CO2. The most commonly used absorbents are amines or alkali hydroxides. The key limitation of biogas containing carbon dioxide is the limitation of the possibility of introducing biogas into the high-methane gas network. To sum up, removing carbon dioxide (CO2) from biogas is an important process, especially if we want to produce high-quality biomethane or use biogas for energy purposes... dalej
• The issues of hydrocarbons exhalation from wells drilled in geological formations of Carpathian Flysch and Autochthonous Miocene in terms of potential possibilities of isolation of gas inflow zones in the design and implementation phase of well drilling (Part no. 2)
  The article discusses important issues related to the migration and exhalation of gas in relation to phenomena often occurring in the area of the Outer Carpathians and the Carpathian Foredeep, in particular from the formations of the Carpathian Flysch and the Autochthonous Miocene.
  The article reviews publications and other studies related to this phenomenon, paying attention to the unfavorable impact on the environment and at the same time justifying the conditions for the formation and triggering of the phenomenon of gas migration and exhalation as objective factors independent of operational factors or other factors, i.e. physical barriers.... dalej
• Key criteria for the selection of drilling fluids for geothermal formation water in the context of the circular economy
  Geothermal energy is an extremely promising source of energy, which is becoming increasingly popular in the context of the search for alternative, environmentally friendly ways of obtaining energy. One of the key elements of making geothermal water deposits available is the use of appropriate drilling fluids, especially in the context of the circular economy.
  The circular economy is a model of production and consumption that involves sharing, borrowing, reusing, repairing, refurbishing and recycling existing materials and products for as long as possible. In this way, the life cycle of the products is extended. In practice, this means reducing waste to a minimum. When a product’s life cycle comes to an end, the raw materials and waste that comes from it should stay in the economy, thanks to recycling. They can be successfully reused, thus creating additional value. If we continue to exploit resources at the current rate, we will need the resources of three planet Earth by 2050. Scarce resources and climate issues require a shift from a take-make-dispose society to a carbon-neutral, environmentally sustainable, toxin-free and fully circular economy by 2050... dalej

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