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首页> 外文会议>International symposium on emerging technologies of pulping and papermaking;ISETPP >GREEN LIQUOR AS A NOVEL PRETREATMENT AGENT TO DERIVE HIGHER VALUE WOOD PRODUCTS
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GREEN LIQUOR AS A NOVEL PRETREATMENT AGENT TO DERIVE HIGHER VALUE WOOD PRODUCTS

机译：绿色酒作为新型预处理剂，可衍生出高价值的木质产品

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摘要

Kraft mill green liquor is a by-product of the recovery operations whose main purpose is to undergo slaking and causticization reactions to provide mill white liquor (“cooking liquor”). The conversion of green liquor to white liquor is necessary because green liquor does not have a sufficiently high alkalinity to delignify wood for the ultimate production of pulp. Remarkably, a relatively nonconventional burden has been placed upon green liquor within the last 10 years: directly treat wood chips within not only the concept of the kraft pulp mill, but within the construct of the wood-based biorefinery. Green liquor possesses balanced chemical functionality which allows it to efficiently soften wood chips for use in a number of potential operations, namely, (1) a higher value wood pulp operation, (2) value prior to pulping, (3) pretreatment of wood for enzymatic digestion and bioethanol conversion, and (4) value prior to combustion. This presentation will survey in a general sense critical aspects of each of these conversion processes with a general overview of the chemistry, engineering, and economics.
机译：牛皮纸磨浆绿液是回收操作的副产品，其主要目的是进行熟化和苛化反应以提供磨浆白液（“蒸煮液”）。绿液向白液的转化是必要的，因为绿液的碱度不足以使木材脱木质以最终制浆。值得注意的是，在过去的十年中，绿液已成为一种相对非常规的负担：不仅在牛皮纸制浆厂的概念内，而且在木基生物精炼厂的结构内，直接处理木屑。绿液具有平衡的化学功能，可使其有效软化用于许多潜在操作的木片，即（1）高价值的木浆操作，（2）制浆前的价值，（3）木材的预处理酶促消化和生物乙醇转化，以及（4）燃烧前的值。本演示文稿将在一般意义上对每个转化过程的关键方面进行调查，并对化学，工程和经济学进行总体概述。

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