Catalytic cracking of triglycerides with a base catalyst and modification of pyrolytic oils for production of aviation fuels†,Sustainable Energy & Fuels

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Catalytic cracking of triglycerides with a base catalyst and modification of pyrolytic oils for production of aviation fuels†
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2018-04-06 00:00:00 , DOI: 10.1039/c7se00505a
Fanglin Li _{1,

2,

3,

4,

5} , Jianchun Jiang _{1,

2,

3,

4,

5} , Peng Liu _{1,

2,

3,

4,

5} , Qiaolong Zhai _{1,

2,

3,

4,

5} , Fei Wang _{1,

2,

3,

4,

5} , Chung-yun Hse _{6,

7,

8} , Junming Xu _{1,

2,

3,

4,

5}

Affiliation

Molecular structure transformation is a critical step for synthesis of aviation biofuels from triglycerides, to yield alkanes, aromatics and cycloalkanes. To this end, triglycerides were treated by catalytic cracking coupled with rectification to obtain hydrocarbon fuels, and the molecular weight of the liquid product was adjusted to the desirable boiling range of aviation fuel. To further modify the molecular structures, the pyrolytic hydrocarbons were partially converted into aromatics and cycloalkanes by a two-step process. Different raw materials including soybean oil, rubber seed oil, waste cooking oil and acidified oil were cracked with a 5 wt% base catalyst at 350–450 °C (under the atmospheric pressure) in a benchtop reactor. Afterwards, the linear hydrocarbons of C8–C15 size were transformed into aromatics by HZSM-5 at 350 °C for 6 h. Then, a portion of the aromatics were converted into cycloalkanes catalyzed by Pd/AC at 200 °C and 6 MPa (H₂) for 6 h. As a result, a desirable mixture of linear hydrocarbons, aromatics and cycloalkanes was obtained with a similar composition and properties to traditional fossil aviation fuels.

中文翻译：

用碱性催化剂催化裂解甘油三酸酯和改性热解油，以生产航空燃料†

分子结构转变是从甘油三酸酯合成航空生物燃料以生产烷烃，芳烃和环烷烃的关键步骤。为此，通过催化裂化和精馏结合来处理甘油三酸酯以获得烃燃料，并将液体产物的分子量调节至航空燃料的期望沸程。为了进一步修饰分子结构，通过两步法将热解烃部分转化为芳烃和环烷烃。在台式反应器中，在350–450°C（大气压下）下，用5 wt％的碱催化剂裂解包括大豆油，橡胶籽油，废食用油和酸化油在内的各种原料。之后，HZSM-5在350°C的条件下6小时将C8–C15大小的直链烃转化为芳烃。然后，₂）6小时。结果，获得了具有与传统化石航空燃料相似的组成和性质的线性烃，芳族化合物和环烷烃的理想混合物。

更新日期：2018-04-06

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