A Brief Note On Gas Separation And Sequestration - 2801 Words

Dangling PEG Containing Thiol-ene Polymer Membranes Effect of Dangling PEG Moieties on CO2 Gas Selectivity, Gas Transport, and Free Volume Properties Tyler Haddock Graduate Student: Ramesh Ramakrishnan Advisor: Dr. Sergei Nazarenko Introduction Gas separation and sequestration is used in many of industrial processes. An emerging utilization is in fossil fuel plants, where fuel combustion waste is released.1 Among these products is CO2, which is why fuel plants and most notably coal plants—the number one producer of electricity in the United States—account for around 40% of all CO2 emissions.1-2 Carbon capture and sequestration (CCS) at fuel plants has duel benefits: an increase in the performance of fuels, such as natural gas from reduced CO2 concentration, and a lowering of the emission of a greenhouse gas into the atmosphere.1 Methods to separate and remove CO2 before being released as flue gas have already been implemented to a limited extent.1, 3 Separation of CO2 can occur before or after energy conversion, but pre-combustion treatments—such as gasification and oxy-combustion—also require the separation of H2 and O2 ¬ gases, respectively.1 Regardless of when the CCS stage occu rs, CO2 capture is the most costly step with common approaches including chemical absorption, surface adsorption, and membrane technology. The most developed and commonly used technique is absorption, often using amines such as monoethanolamine (MEA).1 MEA is effective due toShow MoreRelatedSocm Study Guide Essay30404 Words   |  122 Pages This infestation is the result of direct contact with the lice through sexual activity, toilet seats, clothing, or bedding. Samp;S: The louse is comparatively large but not easily seen, and itching is almost always present. The patient may note the presence of small specks on the sheets upon arising. Tx: Good hygiene, Avoid sexual activity with persons who have this infestation. Permethrin cream 5% is currently the treatment of choice. Lindane (Kwell) may also be used. MF-0241 Identify