ishanee's views

In my previous post on “Management of Carbon Emissions in Industries”, I have briefly mentioned about carbon capture and storage. In this post, I am going discuss various technologies used for carbon capture. Carbon dioxide has been captured from industries for more than 80 years. It is captured for industrial uses such as urea and ammonia production, carbonated beverage production, breweries. Capture technologies have three categories, depending on what stage of the process carbon dioxide is removed. These are:- Pre-Combustion Capture Post Combustion Capture Oxy-Fuel Combustion Capture Figure 1: Capture Technologies 1. Pre-Combustion Capture Here, carbon dioxide is separated from the fuel before combustion. It is done at very high temperature by splitting hydrocarbons into hydrogen and carbon dioxide. The carbon dioxide is removed before combustion and the carbon dioxide undergoes combustion to form water. The hydrocarbons can be split by processes like gasification...

       Carbon dioxide is released in the air from various industries, power plants and vehicles. CO 2  emission is the leading cause of global warming. The ways to curb carbon emissions have always puzzled scientists from all over the world. A novel method has been recently developed which aims to curb carbon dioxide released from the industries and convert into methanol. Researchers from University of Southern California have demonstrated that the captured carbon dioxide can be converted into methanol in the presence of molecular hydrogen with the help of homogeneous catalyst. The production of methanol is attractive because of its potential for use as an alternative fuel and for hydrogen storage. These reactions require high temperatures (around 150℃) and unfortunately heat often causes the decomposition of the catalyst[1]. In another study, the researchers have developed a stable catalyst based on metal ruthenium which does not decompose at high t...