CAJ | 학술논문

蔗渣在160℃下保温30 min进行热水抽提或预水解处理,可以溶解15%左右的物质.经热水抽提后的蔗渣在降低用碱量约15%(从18.9%降到16.0%)的情况下进行碱法蒸煮,可降低蒸煮后浆料的卡伯值约16%(卡伯值从13.1降到11.0),而且浆料黏度提高.在相同的卡伯因子情况下进行ECF漂白,生产漂白浆可以节省二氧化氯约20%,而且纸浆的白度明显提高(从77.6%提高到83.7%),从而达到减少排放和降低化学药品消耗的日的.
자사재160℃하보온30 min진행열수추제혹예수해처리,가이용해15%좌우적물질.경열수추제후적자사재강저용감량약15%(종18.9%강도16.0%)적정황하진행감법증자,가강저증자후장료적잡백치약16%(잡백치종13.1강도11.0),이차장료점도제고.재상동적잡백인자정황하진행ECF표백,생산표백장가이절성이양화록약20%,이차지장적백도명현제고(종77.6%제고도83.7%),종이체도감소배방화강저화학약품소모적일적.
Bagasse was subjected to hot-water extraction (or prehydrelsis)at 160℃ for 30 minutes, which resulted in about 15% mass-re- moval. Compared to the untreated bagasse, alkali charge of prehydrelyzed bagasse cooking can reduce from 18.9% to 16.0%, while the kappa number of the resultant pulp reduce from 13.1 to 11.0 and pulp viscosity increases. ECF bleaching process was applied to the pulps produced from prehydrolyzed bagasse and untreated bagasse. At the same kappa factor, prehydrelysis of bagasse can reduce C1O2 demand by almost 20% while the brightness of the bleached pulp increases significantly. Bagasse prehydrolysis or hot-water extraction before soda pul- ping can reduce effluent discharge and reduce chemical demand.