用于生物能源生产的腌制 Saccharina latissima 优势巨藻颗粒的热催化重整热解法

IF 7.1 Q1 ENERGY & FUELS
Marie E. Kirby , Trisha Toop , Miloud Ouadi , Lesley McEvoy , Christine Rolin , Rhiannon Inkster , Philip W. Dyer , Michael K. Theodorou
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引用次数: 0

摘要

海洋大型藻类是一种用于制造燃料和化学品的生物质资源,可以从海藻养殖场或作为生物污损生物聚集的人造结构中可持续地收获。然而,在温带地区,养殖的大型藻类只能在春末夏初收获,限制了全年的供应。在这里,我们展示了一种传统的草料腌制方法,这种方法能将以 Saccharina latissima 为主的生物质保存 30 个月,使这种生物质全年都能使用。在加工过程中,得到的干燥和颗粒化的大型藻类饵料要经过 Thermo-Catalytic Reforming™(热催化重整)处理,包括连续热解(450 °C)和干法或蒸汽催化重整(700 °C)过程。这两种处理方法都能产生生物油(1.6-1.9 wt%)和富氢永久气体(30.9-31.1 wt%)的混合物,热值分别为 34.8-35.4 MJ/kg 和 18.0-24.2 MJ/m3,同时还能产生焦炭(45.5-48.5 % wt%)。永久气体可直接用于发热,而生物油的水处理则可提供一种可与传统运输燃料混合的材料。这项工作表明,如果规模化运作,对保存的大型藻类生物质进行联合收割、腌制和热催化重整™,可提供全年分散的能源资源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermo-catalytic reforming pyrolysis of ensiled Saccharina latissima dominated macroalgal pellets for bioenergy production

Marine macroalgae is a biomass resource for the manufacture of fuels and chemicals, which can be sustainably harvested from seaweed farms or from man-made structures where it accumulates as a biofouling organism. However, in temperate regions farmed macroalgae can only be harvested between late Spring and early Summer, limiting year-round availability. Here we show that a conventional grass ensilage procedure preserves Saccharina latissima dominated biomass on the tonne scale for 30 months, enabling year-round use of this biomass. Following processing, the resulting dried and pelletised ensiled macroalgae material was subject to Thermo-Catalytic Reforming™, comprising sequential pyrolysis (450 °C) and either dry or steam catalytic reforming (700 °C) processes. Both processing methods produced a mixture of bio-oil (1.6–1.9 wt%) and hydrogen-rich permanent gases (30.9–31.1 wt%) with higher heating values of 34.8–35.4 MJ/kg and 18.0–24.2 MJ/m3, respectively, together with char (45.5–48.5 % wt). The permanent gases can be used directly for heat generation, while hydro-treatment of the bio-oil would afford a material that can be blended with traditional transport fuels. This work demonstrates that if operated at scale, the combined harvesting, ensilaging and Thermo-Catalytic Reforming™ of preserved macroalgal biomass offers a year-round decentralised energy resource.

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来源期刊
CiteScore
8.80
自引率
3.20%
发文量
180
审稿时长
58 days
期刊介绍: Energy Conversion and Management: X is the open access extension of the reputable journal Energy Conversion and Management, serving as a platform for interdisciplinary research on a wide array of critical energy subjects. The journal is dedicated to publishing original contributions and in-depth technical review articles that present groundbreaking research on topics spanning energy generation, utilization, conversion, storage, transmission, conservation, management, and sustainability. The scope of Energy Conversion and Management: X encompasses various forms of energy, including mechanical, thermal, nuclear, chemical, electromagnetic, magnetic, and electric energy. It addresses all known energy resources, highlighting both conventional sources like fossil fuels and nuclear power, as well as renewable resources such as solar, biomass, hydro, wind, geothermal, and ocean energy.
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