Carbon Dioxide (CO2) is one of the four main greenhouse gases and one of the most danger pollutions to the atmosphere resulted by human activities, especially by use of coal to produce electricity. The indirect effect from CO2pollution is so-called global warming, a highly controversial effect that has become a subject of many discussions. Yet, NOAA has demonstrated that currently the surface temperature on earth increases by two degrees Celsius every century. Carbon capturing and sequestration (CCS) is a concept that has been used to reduce pollution of CO2. The focus is on power plants because they alone are responsible for about 40 % of the pollution, as well as because technologically it is the easiest target to reduce pollution. Chitin, the polysaccharide that can be derived from seafood shells, is able to bind CO2 with its multiple amine groups. The material is biocompatible. We have shown that row chitin from shrimps and crabs shells can act as an effective and reversible sorbent for carbon sequestration, when hydrolyzed to low molecular weight oligomers. The process of isolation, hydrolysis and purification of chitin, and the carbon sorption data are presented.

Unpurified chitin derived from seafood waste as a reversible and biocompatible sorbent for carbon dioxide sequestration

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