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| Combustion Properties of Mixed Solids of Linters Pulping Black Liquor and Reed Pulping Black Liquor |
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| DOI：10.11980/j.issn.0254-508X.2015.11.001 |
| Key Words:blank liquor combustion alkali recovery |
| Author Name | Affiliation | | 苏振华 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 冯文英 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 张 羽 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 |
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| Abstract:The physicochemical properties of the linters pulping black liquor solid and reed pulping black liquor solid were analyzed. Volume expansion, calorific values and pyrolysis characteristics of the solid samples containing different ratios of the two solids were studied, and activation energy and frequency factor of the samples in combustion process were further calculated using coats-Redfern method. The results showed that: there were some difference between the components of the two solids. The combustion of the mixed solid was a complex process, and it could be divided into four stages: ① drying, ② devolatilization or pyrolysis, ③ char burning, and ④ smelt coalescence. With the increase of reed pulping black liquor ratio in the mixed solid, solids activation energies would decrease, frequency factor and volume expansion would increase, solid combustion performance was significantly improved. |
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