Application of ethanol-assisted soda pulping to Korean Quercus acutissima Carruth
Sustainable production and utilization are critical values in many industries. In present, our living is threatened by indiscriminate usage of petrochemical materials that have pollution problem to soil, sea, as well as human health since they are extremely difficult to be decayed and recycled. Therefore, it is very important to find alternatives using sustainable materials. The effective utilization of forest resources and production will be directly relevant to SDGs 8, 12, and 13. Wood is a typical natural sustainable resource consisted of cellulose, hemicellulose, lignin, and extractives. Each component has important value as raw materials to convert value-added materials, such as energy, pulp, paper, cosmetics, fragrance, pharmaceuticals and so on. Among them cellulose which is a major component of wood can be produced by chemical engineering process and applied to the various industrial areas. Kraft pulping is a typical and classical chemical engineering process that can extracted cellulose from wood for producing pulp. However, it is difficult to bleach and includes environmentally harmful elements which can generated corrosive gases such as SOx and NOx. This paper will suggest an eco-friendly pulping process to deal with the inevitable environmental problems, such as air pollution and consumption of mass energy by addition of ethanol in extraction process of cellulose from wood. Delignification efficiency was analyzed at the various operating variables such as alkali concentration, ethanol dosage, and cooking temperature. As a result, ethanol had positive effects on improvement of delignification without any change of pulp properties compared to conventional Kraft pulping. Keywords: Research ID: 3622377
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| Format: | Document biblioteca |
| Language: | English |
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FAO ;
2022
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| Online Access: | https://openknowledge.fao.org/handle/20.500.14283/cc4440en http://www.fao.org/3/cc4440en/cc4440en.pdf |
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