Production of adhesives from bark through fast pyrolysis

许多林业公司会产生大量的树皮残渣。这些残留物目前在树皮锅炉中燃烧，以产生低价值的蒸汽。拟议研究的主要目标是将树皮转化为高价值液体，以取代从化石石油资源中提取的苯酚在苯酚-甲醛树脂中(这些树脂的主要应用是制造胶合板)。这将带来显著的经济和环境效益。 替代资源化学品和燃料研究所(ICFAR)开发了一种热解蒸气的分步冷凝工艺。它产生两种液体：一种含水冷凝液和一种干燥、低酸度的生物油，这是苯酚-甲醛树脂中苯酚替代的理想选择。 拟议的研究将集中在应用ICFAR热解技术从树皮中生产干生物油，以取代苯酚-甲醛树脂中的苯酚。为了最大限度地减少热解过程中的外部能量消耗，将通过向热解反应器中添加受控数量的空气来研究使用自热操作条件的可能性。

Many forestry companies generate large amounts of bark residues. These residues are currently combusted in bark boilers to generate low value steam. The main objective of the proposed research is to investigate the conversion of bark into a high value liquid that could substitute phenol derived from fossil petroleum resources in phenol-formaldehyde resins (a main application of these resins is the manufacture of plywood). This would provide significant economic and environmental benefits. The Institute for Chemicals and Fuels from Alternative Resources (ICFAR) has developed a process for the fractional condensation of pyrolytic vapors. It produces two liquids: an aqueous condensate and a dry, low acidity bio-oil that should be ideal for phenol substitution in phenol-formaldehyde resins. The proposed research will focus on the application of the ICFAR pyrolysis technology to produce dry bio-oil from bark for the substitution of phenol in phenol-formaldehyde resins. In order to minimize external energy consumption during the pyrolysis process, the possibility of using autothermal operating conditions will be investigated by adding controlled amounts of air into the pyrolysis reactor.