Understanding flammable gases to mitigate potential risks Acetylene, ammonia, hydrogen, propane, propylene and methane are all flammable gases, also known as fuel gases. They burn when mixed with an oxidant and provided with a source of ignition. Which gas can fire? Oxygen, fuel and heat are needed for fire toRead More →
Solubility is the maximum amount of a substance that will dissolve in a given amount of solvent at a specific temperature. There are two direct factors that affect solubility: temperature and pressure. Temperature affects the solubility of both solids and gases, but pressure only affects the solubility of gases. HowRead More →
Incineration produces fly ash and bottom ash just as is the case when coal is combusted. The total amount of ash produced by municipal solid waste incineration ranges from 4 to 10% by volume and 15–20% by weight of the original quantity of waste, and the fly ash amounts toRead More →
Fluorinated gases (‘F-gases’) are a family of man-made gases used in a range of industrial applications. Where are these gases coming from? Carbon dioxide (CO2) makes up the vast majority of greenhouse gas emissions from the sector, but smaller amounts of methane (CH4) and nitrous oxide (N2O) are also emitted.Read More →
Unlike many other greenhouse gases, fluorinated gases have no natural sources and only come from human-related activities. … There are four main categories of fluorinated gases—hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3). What are the sources of F gases? Stationary refrigeration, air conditioning and heat pumpRead More →
Fluorinated gases: Hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride, and nitrogen trifluoride are synthetic, powerful greenhouse gases that are emitted from a variety of industrial processes. Are CFCs GHGs? While acting to destroy ozone, CFCs and HCFCs also act to trap heat in the lower atmosphere, causing the earth to warm and climateRead More →
Noble gases are a unique set of elements in the periodic table because they don’t naturally bond with other elements. What happens when noble gases Bond? The full valence electron shells of these atoms make noble gases extremely stable and unlikely to form chemical bonds because they have little tendencyRead More →
In many plants it is necessary to remove sulfur from the flue gases after the combustion process to meet environmental requirements. For this reason FGD is widely used to control emissions of sulfur dioxide (SO2) and sulfur trioxide (SO3) from plants burning coals with high sulfur contents. What is flueRead More →
Noble gases are a unique set of elements in the periodic table because they don’t naturally bond with other elements. What holds noble gases together? Noble gases have full electron shells, which virtually blocks any other element from bonding with it. Why do noble gases not bond with other elements?Read More →