Green Diesel from Hydrotreated Vegetable Oil Process Design Study

Abstract

A systematic approach was applied to study the process of hydrotreating vegetable oils. During the three phases of conceptual, detailed, and final design, unit operations were designed and sized. Modeling of the process was performed with UniSim Design®. Producing green diesel and jet fuel from vegetable oils was found to be technically possible via a flexible process of hydrotreatment. The resulting mass and energy balances indicated high carbon atom and energy yield. An economic evaluation proved that the operational expenses mainly depend on the cost of raw materials. Currently, the margin between crude palm oil and the retail diesel price is too low to operate an economically viable process. However, production and utilization of biofuels is required by international regulations.

Transition Metal Phosphides for the Catalytic Hydrodeoxygenation of Waste Oils into Green Diesel

“…A very interesting alternative to the esterification process is the hydrotreatment of vegetable oils or animal fats, the fuel obtained after this hydrotreatment is known as renewable diesel. Hydrotreatment of vegetable oils or animal fats is one of the more attractive processes in the production of biofuels in terms of carbon mass balance (approximately 95%) [3]. The quality of the hydrotreated vegetable oils (HVOs) is clearly higher than that of ester-type biodiesel fuels.…”

Experimental Investigations of Hydrogen Effects on Performance and Emissions of Renewable Diesel Fueled Rcci / Vandenilio Įtaka Energiniams Ir Emisijos Rodikliams Alternatyviu Dyzelinu Veikiančiame Rcci Variklyje – Eksperimentinis Tyrimas

“…The utilization of hydrogen with other fuels in diesel engine under dual fuel RCCI mode could provide solutions to reduce carbon-based emissions (Kalsi & Subramanian, 2017). Investigations of Baltacioglu, Arat, Ozcanli, and Aydin (2016), Barrios, Domínguez-Sáez, and Hormigo (2017), Senthil Kumar (2003), Singh Bika, Franklin, and Kittelson (2008), Zhou, Cheung, and Leung (2014), Hilbers et al (2015), Szwaja and Grab-Rogalinski (2009) performed on CI engine with addition of different amount of hydrogen show that emissions and performance parameters are dependent on injection timing of DF (petrol or renewable), it's duration, BMEP, MFB and engine speed. The reactivity of the pilot fuel plays an important role in control of the combustion characteristics of the RCCI engine.…”

REVIEW OF BIOFUEL PRODUCTION – FEEDSTOCK, PROCESSES AND MARKETS — Review Article

“…caustic soda and phosphoric acid are used for degumming and neutralisation (Nikander, 2008); basically the same pre-treatment processes are implemented as discussed above for FAME. Afterwards the various processing steps are performed; they are displayed in Figure 12 (see also Hilbers et al, 2015).…”