Hydrocarbon from microalgae

Generally, microalgae lipids include nentral lipids, polar lipids, wax esters, sterols, and hydrocarbons, as well as phenyl derivatives (Naik et al, 2010). For biodiesel prodnction, natural lipids, which are nonpolar, are always targeted. Typically, most of the lipids produced from microalgae strains that have been tested for biodiesel prodnction have fatty acid constitutions similar to most common vegetable oils (Becker, 2004 Huang et al., 2012), as shown in Table 6.1. 

Dote, Y., et al., 1994. Recovery of hquid fuel from hydrocarbon-rich microalgae by thermo-chemical liquefaction. Fuel 73 (12), 1855—1857. 

Giese B., Latumus F., Adams F. C., and Wiencke C. (1999) Release of volatile iodinated Cl—C4 hydrocarbons by marine microalgae from various climate zones. Environ. Sci. Technol. 33, 2432-2439. 

We have studied CO2 fixation of the exhaust gas from thermal power stations by microalgal photosynthesis. In order to utilize the resulting large quantities of biomass for fuel, compost, feed and other useful chemical substances, we have screened microalgae which produce lipids or hydrocarbons. In this study, we report the isolation and characterization of a green alga tolerant of the concentration of 10%CO2 at30t . 

Ketenes are most often prepared from carboxylic acid derivatives, and a novel reductive pathway has been described for the conversion of biomass derived fatty acid esters in microalgae oils into hydrocarbons through intermediate ketenes. The conversion into alkanes using Zr02-promoted Ni catalysis is explained as involving conversion of the esters into acids and dehydration to ketenes (observed by strong... 

Eroglu, E. and Melis, A. (2010) Extracellular terpenoid hydrocarbon extraction and quantitation from the green microalgae Botryococcus braunii var. Showa. Bioresour. Technol, 101 (7), 2359-2366. 

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