Heterogeneous catalytic upgrading of biocrude oil produced by hydrothermal liquefaction of microalgae: State of the art and own experiments

2016 ◽  
Vol 148 ◽  
pp. 117-127 ◽  
Author(s):  
Diego López Barreiro ◽  
Blanca Ríos Gómez ◽  
Frederik Ronsse ◽  
Ursel Hornung ◽  
Andrea Kruse ◽  
...  
Keyword(s):  
State Of The Art ◽  
Hydrothermal Liquefaction ◽  
Catalytic Upgrading ◽  
Heterogeneous Catalytic ◽  
Biocrude Oil

Renewable Diesel Blendstocks and Biopriviliged Chemicals Distilled from Algal Biocrude Oil Converted via Hydrothermal Liquefaction

2019 ◽  
Author(s):  
Wan-Ting (Grace) Chen ◽  
Zhenwei Wu ◽  
Buchun Si ◽  
Yuanhui Zhang
Keyword(s):  
Oxidation Stability ◽  
Ash Content ◽  
Hydrothermal Liquefaction ◽  
Fractional Distillation ◽  
Chemical Compositions ◽  
Steam Temperature ◽  
Renewable Diesel ◽  
Commodity Chemicals ◽  
Biocrude Oil ◽  
Specification Analysis

This study aims to produce renewable diesel and biopriviliged chemicals from microalgae that can thrive in wastewater environment. <i>Spirulina</i> (SP) was converted into biocrude oil at 300ºC for a 30-minute reaction time via hydrothermal liquefaction (HTL). Next, fractional distillation was used to separate SP-derived biocrude oil into different distillates. It was found that 62% of the viscous SP-derived biocrude oil can be separated into liquids at about 270ºC (steam temperature of the distillation). Physicochemical characterizations, including density, viscosity, acidity, elemental compositions, higher heating values and chemical compositions, were carried out with the distillates separated from SP-derived biocrude oil. These analyses showed that 15% distillates could be used as renewable diesel because they have similar heating values (43-46 MJ/kg) and carbon numbers (ranging from C8 to C18) to petroleum diesel. The Van Krevelan diagram of the distillates suggests that deoxygenation was effectively achieved by fractional distillation. In addition, GC-MS analysis indicates that some distillates contain biopriviliged chemicals like aromatics, phenols and fatty nitriles that can be used as commodity chemicals. An algal biorefinery roadmap was proposed based on the analyses of different distillates from the SP-derived biocrude oil. Finally, the fuel specification analysis was conducted with the drop-in renewable diesel, which was prepared with 10 vol.% (HTL10) distillates and 90 vol.% petroleum diesel. According to the fuel specification analysis, HTL10 exhibited a qualified lubricity (<520 µm), acidity (<0.3 mg KOH/g) and oxidation stability (>6 hr), as well as a comparable net heat of combustion (1% lower), ash content (29% lower) and viscosity (17% lower) to those of petroleum diesel. Ultimately, it is expected that this study can provide insights for potential application of algal biocrude oil converted via HTL.

Supported Fe 2 O 3 nanoparticles for catalytic upgrading of microalgae hydrothermal liquefaction derived bio-oil

2017 ◽  
Vol 293-294 ◽  
pp. 159-166 ◽  
Author(s):  
Junjie Bian ◽  
Qi Zhang ◽  
Peng Zhang ◽  
Lijuan Feng ◽  
Chunhu Li
Keyword(s):  
Hydrothermal Liquefaction ◽  
Catalytic Upgrading ◽  
Bio Oil

ChemInform Abstract: Hydrothermal Liquefaction (HTL) of Microalgae for Biofuel Production: State of the Art Review and Future Prospects

ChemInform ◽  
2014 ◽  
Vol 45 (16) ◽  
pp. no-no
Author(s):  
Diego Lopez Barreiro ◽  
Wolter Prins ◽  
Frederik Ronsse ◽  
Wim Brilman
Keyword(s):  
State Of The Art ◽  
Hydrothermal Liquefaction ◽  
Biofuel Production ◽  
Future Prospects

Biocrude oil production via hydrothermal liquefaction of food waste in a simplified high-throughput eeactor

2021 ◽  
pp. 125750
Author(s):  
Ruetai Saengsuriwong ◽  
Thossaporn Onsree ◽  
Sanphawat Phromphithak ◽  
Nakorn Tippayawong Conceptualisation
Keyword(s):  
High Throughput ◽  
Food Waste ◽  
Oil Production ◽  
Hydrothermal Liquefaction ◽  
Biocrude Oil

Hydrothermal liquefaction and gasification of biomass and model compounds: a review

2020 ◽  
Vol 22 (23) ◽  
pp. 8210-8232
Author(s):  
Chuang Yang ◽  
Shuzhong Wang ◽  
Jianqiao Yang ◽  
Donghai Xu ◽  
Yanhui Li ◽  
...  
Keyword(s):  
Hydrothermal Liquefaction ◽  
Model Compounds ◽  
Hydrothermal Conversion ◽  
Biocrude Oil

Catalytic hydrotreatment of HTL biocrude oil, SCWG of biomass, and hydrothermal conversion of model compounds are reviewed.

scholarly journals Heterogeneous Catalytic Upgrading of Biofuranic Aldehydes to Alcohols

2019 ◽  
Vol 7 ◽  
Author(s):  
Jingxuan Long ◽  
Yufei Xu ◽  
Wenfeng Zhao ◽  
Hu Li ◽  
Song Yang
Keyword(s):  
Catalytic Upgrading ◽  
Heterogeneous Catalytic

Biocrude Oil Production through the Maillard Reaction between Leucine and Glucose during Hydrothermal Liquefaction

2019 ◽  
Vol 33 (9) ◽  
pp. 8758-8765 ◽  
Author(s):  
Yi Qiu ◽  
Aersi Aierzhati ◽  
Jun Cheng ◽  
Hao Guo ◽  
Weijuan Yang ◽  
...  
Keyword(s):  
Maillard Reaction ◽  
Oil Production ◽  
Hydrothermal Liquefaction ◽  
Biocrude Oil

Magnetic resonance imaging of catalytically relevant processes

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Alexandra I. Svyatova ◽  
Kirill V. Kovtunov ◽  
Igor V. Koptyug
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
State Of The Art ◽  
Chemical Processes ◽  
Resonance Imaging ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic Processes ◽  
Hyperpolarized Mri ◽  
Magnetic Resonance Imaging Mri ◽  
Low Sensitivity

Abstract The main aim of this article is to provide a state-of-the-art review of the magnetic resonance imaging (MRI) utilization in heterogeneous catalysis. MRI is capable to provide very useful information about both living and nonliving objects in a noninvasive way. The studies of an internal heterogeneous reactor structure by MRI help to understand the mass transport and chemical processes inside the working catalytic reactor that can significantly improve its efficiency. However, one of the serious disadvantages of MRI is low sensitivity, and this obstacle dramatically limits possible MRI application. Fortunately, there are hyperpolarization methods that eliminate this problem. Parahydrogen-induced polarization approach, for instance, can increase the nuclear magnetic resonance signal intensity by four to five orders of magnitude; moreover, the obtained polarization can be stored in long-lived spin states and then transferred into an observable signal in MRI. An in-depth account of the studies on both thermal and hyperpolarized MRI for the investigation of heterogeneous catalytic processes is provided in this review as part of the special issue emphasizing the research performed to date in Russia/USSR.

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