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논문 기본 정보

자료유형
학술저널
저자정보
Chul-Hwan Kim (Gyeongsang National University) Ji-Young Lee (Gyeongsang National University) See-Han Park (Gyeongsang National University) Sun-Ok Moon (Gyeongsang National University)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제51권 제5호(통권 제190호)
발행연도
2019.10
수록면
3 - 15 (13page)
DOI
10.7584/JKTAPPI.2019.10.51.5.3

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초록· 키워드

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Black liquor from kraft pulp mills is a valuable bioresource that can be used to generate renewable energy and to recover cooking chemicals. Consequently, black liquor must not be regarded as a nonrecyclable waste. Kraft pulp mills are known to generate 1.4 to 1.5 tons of black liquor (measured as dry content) per ton of pulp, representing a potential energy source ranging between 250 MW and 500 MW. The effective heating value of black liquor is relatively low at 12 MJ/kg to 13 MJ/kg, compared to fossil fuels. The combustion of black liquor is well controlled according to strict regulations, in order to meet RPS and to obtain renewable energy credit (REC) that equal the percentage requirement for electricity sold. To date, however, Korea has seen no REC benefits in relation to black liquor bioenergy generation, though, in most other countries that produce kraft pulp, surplus renewable energy transactions benefit from black liquor combustion. Only one company produces kraft pulp in Korea, contributing to the consistent growth of the domestic paper industry. As such, it is strongly suggested that the relevant ministries in Korea consider black liquor a valuable resource for generating renewable energy.

목차

ABSTRACT
1. Introduction
2. Generating Black Liquor and Its Composition
3. Recovery Cycle of Cooking Liquor
4. Structure of Recovery Boiler and Combustion of Black Liquor
5. Biofuels Regenerated from Black Liquor
6. Reusing Black Liquor
7. Conclusions
Literature Cited

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