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乌拉圭Fray Bentos浆厂于2007年11月投产,文中介绍了其运行第1年的达产曲线、实际工艺技术参数、浆的质量,以及废气和废水排放对环境的影响。该厂年产100万t全漂桉木商品浆,达产后每年需要的桉木(主要是巨桉)超过300万m3(实积)。桉木蒸煮采用双罐降流低固形物连续蒸煮,蒸煮后浆料卡伯值为18;蒸煮后的浆料经两段氧脱木素后使浆料卡伯值降至10;采用A/D-EOP-D-P漂序使全漂商品浆的白度为91%。碱回收采用七效蒸发器将稀黑液浓缩至80%;碱回收炉的燃烧能力为4450t/d,过热蒸汽的参数为9.4MPa、490℃。整个浆厂及其选用的工艺是按欧盟污染物综合防治最佳可用技术的参考说明(IPPCBREF)设计和建设的,以便在生产中遵循化学浆制造的最佳可用技术。
The Fray Bentos pulp mill in Uruguay was put into operation in November 2007. The production curve of the first year of operation, the actual process parameters, the quality of the pulp and the environmental impact of the exhaust gas and waste water discharge were introduced. The plant annual output of 1 million t full eucalyptus commercial pulp, annual production needs of eucalyptus (mainly giant eucalyptus) more than 3 million m3 (plot). Eucalyptus cooking with double cans of low-flow continuous low-solids steam cooking, cooking kappa number of slurry was 18; after digestion of the pulp slurry after two oxygen delignification kappa number down to 10; using A / D-EOP-DP bleach makes the whole bleach pulp brightness of 91%. Alkali recovery using a seven-effect evaporator concentrated black liquor to 80%; alkali recovery furnace combustion capacity of 4450t / d, superheated steam parameters 9.4MPa, 490 ℃. The entire pulp mill and its process of choice are designed and constructed in accordance with the European Union (IPPCBREF) Reference Guide for the Best Available Technologies for Integrated Pollution Prevention to follow the best available technology for chemical pulp manufacture in production.