Category Archives: Biodiesel science and technology

Challenges for the global biodiesel industry

After rapid growth in the past few years, the global biodiesel industry is now facing a number of important challenges (Table 16.1), which will be influential to the future. Biodiesel markets in 2008-09 are characterised by high turbulence. Some short — and long-term challenges for biodiesel producers are common to the whole industry, while others are more regionally specific. The […]

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Hydroprocessing technology

As already indicated in Section 1.3, transesterification is not the only process used to produce a biofuel from triglyceride feedstocks (vegetable oils, tree- borne oils and animal fats). A competing approach involves hydroprocessing, which is a generic term encompassing a number of catalytic processes using hydrogen, e. g. hydrogenation, hydrocracking and hydrotreating (Fig. 15.17). Hydroprocessing of natural lipids occurs in […]

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Sustainability

Sustainable food, energy and waste are competing priorities. A common platform for sustainable agriculture and responsible energy is needed. A standard definition of energy balance is required to allow comparisons. Biofuels can never be made entirely risk free, but the risk can be reduced by developing and introducing credible sustainability criteria as soon as possible. A consistent and transparent sustainability […]

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NExBTL Renewable Synthetic Diesel

To be able to blend a year-round renewable fuel for the diesel pool requires an improved synthetic diesel over FAME. Neste Oil Corporation has proposed a different renewable diesel and has developed the corresponding biofuel technology, called Next generation Biomass To Liquid diesel technology. The novel NExBTL diesel component (GTL-like) utilises a proprietary conversion process for vegetable oils and animal […]

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Feedstock sources and supply

Availability of economical feedstock, feedstock flexibility and security are essential. Globally, though not regionally, supplies are insufficient for domestic biodiesel production. Strong partnership with the vegetable oil industry (preferably with on-site crushing facilities) is critical to producer survival. No one feedstock provides the ultimate solution to the biodiesel industry’s challenges. A diverse portfolio of agricultural products for biodiesel is needed. […]

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Ecofining™ hydroprocessing technology

Ecofining™ from UOP LLC/Eni is another feedstock-flexible catalytic hydroprocessing technology that converts a wide range of vegetable oils and other biologically-derived feedstocks (waste) into a Green Diesel fuel with high cetane values (80-90 range), good cold-flow properties and low emissions [81-83]. The Green Diesel process is a two-stage process: (i) hydrodeoxygenation (HDO) of vegetable oils (using a UOP (Ni, Mo) […]

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H-BIO process

Petrobras technology for diesel production from vegetable oils (H-BIO process) involves catalytic hydrogenation of a blend of diesel fractions and vegetable oil in a hydrotreating (HDT) reactor under controlled conditions of high temperature and hydrogen pressure taking advantage of existing plants. Petrobras H-BIO technology is operating in five Brazilian refineries at the end of 2008 with vegetable oil (SBO, CAS) […]

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Perspectives of biomass-to-liquid fuels

Biofuels are a feasible tool to achieve EU policy goals, namely securing and diversifying the energy supply for road transport in an environmentally friendly way. Biomass growth for the current vegetable oil-based diesel technologies (FAME and HVO) is not able to keep pace with growth in fuel demand. Indeed, the production potential of conventional biofuels (bioethanol and biodiesel), based on […]

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