Co-processing waste plastics and biomass using pyrolysis-plasma/catalysis to produce upgraded bio-oils

木质纤维废弃物生物质热解产生的生物油化学成分复杂，含氧量高，酸性强，易聚合，与原油不相容。本研究的目的是利用木质纤维废料生产低氧、低粘度的生物油，适用于现有炼油厂的直接加工。该项目旨在开发一种新的工艺，包括废生物质和废塑料的共热解，以产生一套气体和蒸汽，然后直接输送到低温(&lt；200℃)低温等离子体催化反应器，在那里对生物油进行升级，以生产低氧优质生物油。废塑料的作用是在生物油升级过程中充当氢气供给者。该项目涉及一种新型两级实验室规模反应堆的实验工作，并使用一系列分析技术对产品油和气体进行分析。实验将通过对产品油和气体的详细分析，寻求优化等离子体催化工艺条件，以最大限度地提高生物油的脱氧能力。此外，研究的一个关键课题是开发在等离子体催化环境中有效的新型催化剂。该项目寻求开发一种新的低能工艺来生产升级后的生物油，从而使不断增长的热解生物油行业受益。此外，还提供了一条从废弃生物质和废弃塑料中获得高附加值产品的新途径。

Bio-oil produced from the pyrolysis of lignocellulosic waste biomass is chemically complex, with high oxygen content, acidic properties and tendency to polymerise, the bio-oil is also immiscible with crude petroleum oil. The aim of the research is to produce a low oxygen, low viscosity bio-oil from lignocellulosic waste biomass suitable for direct processing in existing petroleum oil refineries.This project seeks to develop a novel process involving co-pyrolysis of waste biomass and waste plastics to produce a suite of gases and vapours which are then passed directly to a low temperature (< 200 C) non-thermal plasma-catalysis reactor where upgrading of the bio-oil takes place to produce a low oxygen premium grade bio-oil. The role of the waste plastics is to act as hydrogen donors in the bio-oil upgrading process. The project involves experimental work on a novel two-stage laboratory scale reactor and analysis of the product oils and gases using a range of analytical techniques. Experiments will seek to optimise the plasma-catalytic process conditions to maximise bio-oil deoxygenation with detailed analysis of the product oils and gases. In addition, a key topic of the research is the development of new catalysts that are effective in the plasma-catalytic environment. The project seeks to develop a new low energy process to produce upgraded bio-oil, thereby benefiting the growing pyrolysis bio-oils industry. Also, providing a novel route to obtain high value products from waste biomass and waste plastics.