Report On Chm310 Industrial Consultant For The Semester.

Report on CHM310 Industrial Consultant for the Semester Introduction: In the 1980s, HCFCs and hydrofluorocarbons (HFCs) were created as a safe and inexpensive coolant commonly used in refrigerators and air conditioners. They were used in refrigeration and a wide variety of manufacturing processes beginning in the late 1980s with the introduction of the Montreal Protocol (1). The purpose of this report is to present a comparison of two different HFC compounds to Air Liquide, which is a French multinational company, supplies industrial gases to various industries. This report provides high-level detail on the two types of HFC compounds, their impact on climate, environmental fate, and their safety and economic aspects. The three parts of†¦show more content†¦The table above shows that the legacy compound has almost longer atmospheric lifetime than the new compound, in other words, the legacy compounds would take longer time to accumulate in atmosphere and impact on climate. Most importantly, from the data of global warming potential, it is clear that both HFCs compounds are greenhouse gases and they do contribute to global warming; however, the legacy compound has almost ten times higher GWPs than the new compound. The definition of a GWP for a particular greenhouse gas is ration of a gas’s heat-trapping ability relative to CO2 and expressed over a 100-year timescale. It represents that the legacy compounds are more potent greenhouse gases than the new one. With the legacy compounds surrounding, the Earth surface can absorb more IR and warm up the atmosphere. The increasing temperature in turn arises more water vapor, which could create an amplify feedback mechanism and lead to further IR absorption. As a result, atmospheric circulation patterns are altered which will change local weather patterns and lead to catastrophes, such as droughts, floods, and rising sea levels. Environmental fate This section of the report discusses the final products, including their toxicity and their final fate. In general, the whole chemical reaction mechanism can be divided into four overlapping processes: 1) H-abstraction by OH radical, 2) O2-addition, 3) O-transfer by using NO, 4) bond cleavage or formation of the double