水热液化梅拉氏盐藻及其对产物的影响。
Hydrothermal liquefaction of Cyanidioschyzon merolae and the influence of catalysts on products.
机构信息
Chemical and Materials Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
Chemical and Materials Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA.
出版信息
Bioresour Technol. 2017 Jan;223:91-97. doi: 10.1016/j.biortech.2016.10.022. Epub 2016 Oct 14.
This work investigates the hydrothermal liquefaction (HTL) of Cyanidioschyzon merolae algal species under various reaction temperatures and catalysts. Liquefaction of microalgae was performed with 10% solid loading for 30min at temperatures of 180-300°C to study the influences of two base and two acid catalysts on HTL product fractions. Maximum biocrude oil yield of 16.98% was obtained at 300°C with no catalyst. The biocrude oil yield increased to 22.67% when KOH was introduced into the reaction mixture as a catalyst. The algal biocrude and biochar has a higher heating values (HHV) of 32.22MJkg and 20.78MJkg respectively when no catalyst was used. Gas chromatography time of flight mass spectrometry (GC/TOFMS) was employed to analyze the biocrude oil composition, and elemental analysis was performed on the algae, biocrude and biochar samples. Analysis of the HTL aqueous phase revealed the presence of valuable products.
本工作研究了在不同反应温度和催化剂下，蓝藻属 Cyanidioschyzon merolae 藻类物种的水热液化（HTL）。将微藻以 10%的固含量进行液化，在 180-300°C 的温度下反应 30min，研究了两种碱和两种酸催化剂对 HTL 产物馏分的影响。在没有催化剂的情况下，300°C 时获得了 16.98%的最大生物原油产率。当 KOH 作为催化剂引入反应混合物中时，生物原油产率增加到 22.67%。当不使用催化剂时，藻类生物原油和生物炭的高热值（HHV）分别为 32.22MJkg 和 20.78MJkg。采用气相色谱飞行时间质谱（GC/TOFMS）分析生物原油的组成，并对藻类、生物原油和生物炭样品进行元素分析。对 HTL 水相的分析揭示了有价值产物的存在。
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