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首页> 外文期刊>American journal of applied sciences >Upgrading of Bio-Oil into High-Value Hydrocarbons via Hydrodeoxygenation
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Upgrading of Bio-Oil into High-Value Hydrocarbons via Hydrodeoxygenation

机译：通过加氢脱氧将生物油转化为高价值的碳氢化合物

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Problem statement: World energy consumption is forecasted to grow significantly for the foreseeable future with fossil fuel remains the governing energy source. The demand in the need to explore alternative fuel source was further triggered by the overwhelmingly inconsistent cost of gasoline. Bio-oil is an alternative energy source produced from pyrolysis of biomass. However it is undesirable as a ready alternative transportation fuel due to its unfavorable nature i.e., highly oxygenated and low octane number. To overcome these physicochemical issues, hydrodeoxygenation reaction is a possible upgrading method i.e., by partial or total elimination of oxygen and hydrogenation of chemical structures. Hence, this study aimed to investigate feasible routes and to develop the process route to upgrade the pyrolytic bio-oil from biomass into value-added chemicals for the production of transportation fuel, i.e., benzene and cyclohexane, via hydrodeoxygenation process via simulation in PETRONAS iCON software. Approach: In this study, hydrodeoxygenation of phenols and substituted phenols was used to represent the hydrodeoxygenation of the major oxygen compound in bio-oil due to their low reactivity in HDO. Results: By assuming the feedstock used was 1% of the total palm shell available in Malaysia, i.e., 2,587 kg h~(-1) bio-oil, the simulation predicted the production of 226 kg h~(-1) benzene, 236 kg h~(-1) cyclohexane and 7 kg h~(-1) cyclohexene, with the yield of 34, 81 and 3% respectively. The preliminary economic potential was calculated to be positive. It was also observed that hydrogen was the limiting reactant in the hydrogenation reaction. Conclusion/Recommendations: The simulation study indicated positive technical and economic feasibility of hydrodeoxygenation of pyrolytic bio-oil from biomass into benzene and cyclohexane for the transportation fuel industry. This potential can be explored in more details and further findings can promote the prospect of co-processing bio-oil in standard refinery units to produce chemicals and fuels.
机译：问题陈述：在可预见的未来，世界能源消耗预计将显着增长，而化石燃料仍将是主要能源。汽油价格的绝对矛盾进一步引发了对探索替代燃料来源的需求。生物油是生物质热解产生的替代能源。然而，由于其不利的性质，即高氧化和低辛烷值，它不适合作为现成的替代运输燃料。为了克服这些物理化学问题，加氢脱氧反应是一种可能的升级方法，即通过部分或全部消除氧和化学结构的氢化。因此，本研究旨在研究可行的路线，并开发工艺路线，以通过在PETRONAS iCON中进行加氢脱氧工艺，将热解生物油从生物质升级为增值化学品，以生产运输燃料，即苯和环己烷。软件。方法：在这项研究中，苯酚和取代酚的加氢脱氧反应被用来代表生物油中主要含氧化合物的加氢脱氧反应，因为它们在HDO中的反应性较低。结果：假设所用原料为马来西亚可用棕榈壳总量的1％，即2,587 kg h〜（-1）生物油，模拟预测的产量为226 kg h〜（-1）苯，236 kg h〜（-1）环己烷和7 kg h〜（-1）环己烯，产率分别为34％，81％和3％。初步的经济潜力经计算为正。还观察到氢是氢化反应中的限制性反应物。结论/建议：模拟研究表明，热解生物油从生物质加氢脱氧为运输燃料工业的技术和经济可行性是可行的。可以更详细地探索这种潜力，进一步的发现可以促进在标准炼油厂中共处理生物油以生产化学品和燃料的前景。

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