不同热化学转化途径制备的微藻粗生物油的催化水热提质。
Catalytic hydrothermal upgrading of crude bio-oils produced from different thermo-chemical conversion routes of microalgae.
机构信息
College of Physics and Chemistry, Department of Applied Chemistry, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China; Opening Laboratory of Alternative Energy Technologies, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China.
College of Physics and Chemistry, Department of Applied Chemistry, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China; Opening Laboratory of Alternative Energy Technologies, Henan Polytechnic University, No. 2001, Century Avenue, Jiaozuo, Henan 454003, PR China.
出版信息
Bioresour Technol. 2015 Jun;186:58-66. doi: 10.1016/j.biortech.2015.03.050. Epub 2015 Mar 14.
This study presents experimental results that compare the use of hydrothermal liquefaction (HTL), alcoholysis (Al), pyrolysis (Py) and hydropyrolysis (HPy) for the production of bio-oil from a microalga (Chlorella pyrenoidosa) and the catalytic hydrothermal upgrading of crude bio-oils produced by these four conversion routes. The yields and compositions of bio-oil, solid residue, and gases were evaluated and compared. HTL resulted in a bio-oil that has a higher energy density and superior fuel properties, such as thermal and storage stabilities, compared with the other three conversion routes. The N in crude bio-oils produced from Py and HPy is more easily removed than that in the bio-oils produced from HTL and Al. The upgraded bio-oils contain reduced amounts of certain O-containing and N-containing compounds and significantly increased saturated hydrocarbon contents. All of the upgraded bio-oils have a larger fraction boiling below 350°C than their corresponding crude bio-oils.
本研究提供了实验结果，比较了水热液化（HTL）、醇解（Al）、热解（Py）和加氢热解（HPy）四种转化途径从微藻（蛋白核小球藻）生产生物油的效果，以及对这四种转化途径产生的粗生物油进行催化水热升级的效果。评估和比较了生物油、固体残渣和气体的产率和组成。与其他三种转化途径相比，HTL 产生的生物油具有更高的能量密度和更好的燃料性能，如热稳定性和储存稳定性。Py 和 HPy 产生的粗生物油中的 N 比 HTL 和 Al 产生的生物油中的 N 更容易去除。升级后的生物油中某些含 O 和 N 的化合物的含量减少，并且显著增加了饱和烃的含量。所有升级后的生物油的 350°C 以下馏分含量都高于相应的粗生物油。
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