Journal of Advanced Chemical Engineering

Production of biojet fuel from palm fatty acid distillate to over Ni/HY-Pd/TiO2 core-shell catalyst

2^nd International Conference on Advances in Chemical Engineering and Technology

November 16-17, 2017 | Paris, France

Chanakran Homla-or and Siriporn Jongpatiwut

Chulalongkorn University, Thailand

Posters & Accepted Abstracts: J Adv Chem Eng

Abstract:

Biojet fuel also known as aviation bio-fuel is an alternative green energy used to power the aircrafts due to reducing environmental pollution. Biojet fuel can be derived from bio-based feedstock which is renewable resources such as palm fatty acid distillate or PFAD. Generally, biojet fuels can be produced via hydrodeoxygenation, decarboxylation/ decarbonylation reaction in order to remove oxygenated compounds, carboxylic and carbonyl groups in the fatty acid molecules then followed by hydroprocessing which involves hydrogenation, hydrocracking and hydroisomerization reaction. The heterogeneous catalyst is used to convert palm fatty acid distillate or (PFAD) into saturated paraffins in the range of jet fuels using the design of core-shell catalyst model to do both steps of deoxygenation and hydroprocessing reactions. In terms of catalyst, the active metals such as Pd and Ni are also used to develop the efficiency of jet fuel production. TiO2 support is exhibited high efficiency in deoxygenation process to produce long chain hydrocarbon. In addition, zeolite support is considered as support for hydrocracking process because of its suitable structure and acidity properties. However, the reaction condition is favorable at high hydrogen partial pressure to become excess hydrogen because excess hydrogen will lead to the lower olefins formation and higher desired paraffins product. In this work, the Ni/HYcore-Pd/TiO2shell catalyst is prepared and used to convert PFAD into bio-jet fuels in a continuous flow fixed-bed reactor to maximize the conversion and selectivity. Furthermore, the effect of temperature are also be optimized to satisfy the yield of bio-jet fuels. The characteristic of catalysts such as surface area, structure, reduction temperature, acid density and acid strength will also be determined.