Refinery ready bio-petroleum via novel catalytic hydrothermal processing of microalgae

通过微藻的新型催化水热处理加工可用于炼油厂的生物石油

• 批准号: EP/I014365/1
• 负责人: Andrew Ross
• 金额: $ 72.9万
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI014365%2F1
• 关键词: Refinery; ready; bio; petroleum; via

The cultivation of microalgae for use as an alternative source of lipids for biodiesel production is proposed to offer major advantages in terms of oil yields and land use and maybe capable of mitigating CO2 from manufacturing plant and power stations. However, conventional production of biodiesel requires removal of significant amounts of water before transesterification and this represents one of the major challenges for microalgae biofuels. Hydrothermal processing is an alternative route which can tolerate feedstock with high miosture content and involves processing the microalgae in hot compressed water with or without the addition of catalysts. The energy required to remove the water from algae before transesterification of the lipids is high therefore hydrothermal processing can offer significant savings in energy, efficiency and simplicity. This process effectively simulates nature and produces a low oxygen content bio-petroleum with a high energy density of upto 40MJ/Kg, similar to crude oil. Some of the most productive microalgae in terms of biomass production contain lower lipid content and larger amounts of protein and carbohydrate and not good contenders for biodiesel production. Hydrothermal processing however can convert the lipids, carbohydrates and protein to bio-petroleum increasing yields significantly whilst still being able to recycle nutrients for algal cultivation. The challenges for hydrothermal processing is to produce a bio-petroleum with lower oxygen and heteroatom content (in particular N and S) and increase the yields in the gasoline and diesel range. Previous research by the applicants has shown that using in situ aqueous phase hydrogen donors and heterogeneous catalysts can improve the quality of the bio-petroleum by converting the nitrogen to ammonia and reducing its molecular weight. The proposed research will seek to identify suitable catalysts capable of reducing the nitrogen and oxygen content of the bio-petroleum which in combination with aqueous phase hydrogen donors will provide in situ upgrading to refinery ready bio-petroleum with acceptable levels of N and S. Reactor facilities will be developed for investigating catalyst and additive behavior for a range of microalgae with different biochemical content. Suitable catalysts will be identified with high activity and stability under hydrothermal conditions with the main aim of reducing temperature and pressure requirements thus reducing the associated issues of corrosion, high pressure feeding and reducing the energy demands of the process. A flowing cell reactor will be constructed and a novel micro analytical scale hydrothermal injector will be developed for rapid screening of catalysts and additives. A range of metal doped shape selective zeolites will be evaluated with high stability and high acidity and their activity will be investigated using the developed facilities.

提议将微藻作为生物柴油生产的脂质的替代来源，以在石油产量和土地利用方面具有主要优势，并且可能能够减轻制造工厂和电源站的二氧化碳。但是，传统的生物柴油生产需要在移度之前去除大量的水，这代表了微藻生物燃料的主要挑战之一。水热加工是一种替代途径，可以耐受高度含量含量的原料，并涉及在有或不添加催化剂的情况下处理热压缩水中的微藻。在脂质移度之前，从藻类中去除水所需的能量很高，因此水热加工可以为能量，效率和简单性提供大量节省。这个过程有效地模拟了自然，并产生低氧含量生物元素，高能量密度高达40MJ/kg，类似于原油。在生物质生产方面，一些生产力最高的微藻含有较低的脂质含量和较大量的蛋白质和碳水化合物，而不是生物柴油生产的好竞争者。然而，水热加工可以将脂质，碳水化合物和蛋白质转化为生物 - 甲基甲基甲基的产量，同时仍然能够回收营养素以进行藻类培养。水热加工的挑战是生产具有较低氧和杂种含量（尤其是N和S）的生物螺旋体，并增加汽油和柴油范围的产量。申请人先前的研究表明，使用原位水相氢供体和异质催化剂可以通过将氮转化为氨并减少其分子量来改善生物螺旋的质量。拟议的研究将寻求确定能够减少生物甲基氮的氮和氧含量的合适催化剂，这些催化剂与水相氢供体结合使用，将原位升级到炼油厂准备的生物 - 螺旋前，将开发出可接受的N和S.反应器水平，用于研究催化剂和添加型Microtro Altive a reactive a reactive a reactive a reactival and conteralge nifferal conteralge。在水热条件下，将确定合适的催化剂活性和稳定性，其主要目的是降低温度和压力需求，从而减少腐蚀，高压进食和减少工艺能量需求的相关问题。将构建流动的细胞反应器，并将开发新的微分析尺度水热注射器，以快速筛选催化剂和添加剂。将以高稳定性和高酸度评估一系列金属掺杂形状的选择性沸石，并将使用开发的设施研究其活性。

项目成果

Hydrothermal processing of algal biomass for the production of biofuels and chemicals

• DOI: 10.4155/bfs.12.42
• 发表时间: 2012-09
• 期刊: Biofuels
• 作者: P. Biller;A. Ross

Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation

• DOI: 10.1016/j.orggeochem.2015.01.010
• 发表时间: 2015-04-01
• 期刊: ORGANIC GEOCHEMISTRY
• 影响因子: 3
• 作者: Biller, Patrick;Ross, Andrew B.;Skill, Stephen C.
• 通讯作者: Skill, Stephen C.

Pyrolysis GC-MS as a novel analysis technique to determine the biochemical composition of microalgae

• DOI: 10.1016/j.algal.2014.09.009
• 发表时间: 2014-10-01
• 期刊: ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
• 影响因子: 5.1
• 作者: Biller, P.;Ross, A. B.
• 通讯作者: Ross, A. B.

Hydrothermal liquefaction of four brown macro-algae commonly found on the UK coasts: An energetic analysis of the process and comparison with bio-chemical conversion methods

• DOI: 10.1016/j.fuel.2014.09.006
• 发表时间: 2015-01-01
• 期刊: FUEL
• 影响因子: 7.4
• 作者: Anastasakis, K.;Ross, A. B.
• 通讯作者: Ross, A. B.

Hydrogen production from the catalytic supercritical water gasification of process water generated from hydrothermal liquefaction of microalgae

• DOI: 10.1016/j.fuel.2015.10.088
• 发表时间: 2016-02-15
• 期刊: FUEL
• 影响因子: 7.4
• 作者: Cherad, Ramzi;Onwudili, J. A.;Ross, A. B.
• 通讯作者: Ross, A. B.