NOVELTY - A gasification method (M1) employing biomass from an oleaginous microbe as a feedstock, where the biomass comprises spent microbial biomass, protein (less than 20 wt.% by dry cell weight), and lipid (1-20 wt.% by dry cell weight) involves: heating the biomass at 200-1400 degrees C for less than 10 seconds in an atmosphere containing oxygen (less than 3 vol./vol.%) to produce a gas containing a mixture of hydrocarbons.    USE - For gasifying biomass to produce gas containing mixture of hydrocarbons; for converting biomass from an oleaginous microbe to a burnable torrefied composition (all claimed); for making pyrolysis oil and other combustible compositions from microbial biomass and microbial oil and microbial biomass products, such as artificial firelogs, compressed burnable pellets, torrefied compositions, and other solid burnable products; a fuel or formed into combustible products of the generation of heat or light.    ADVANTAGE - The microbial biomass is excellent feedstock for conversion to microbial pyrolysis oil and other combustible compositions.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) converting (M2) biomass from an oleaginous microbe to a burnable torrefied composition involving: heating the biomass under oxygen free conditions at 200-280 degrees C; maintaining the heating step for 0.25-10 hours; cooling the heated product; and recovering the burnable torrefied composition;    (2) a burnable torrefied composition comprising biomass from an oleaginous microbe produced by the method (M2);    (3) a solid, non-torrefied burnable fuel composition comprising combustible biomass from an oleaginous microbe shaped into a log or pellet suitable for burning in a fireplace, stove, oven, or furnace; and    (4) a blended fuel comprising a pyrolysis oil produced by the method of (M1), where the oleaginous microbe used in the method has been genetically engineered to express one of more exogenous genes that result in the microbe producing lipid in which the proportions of fatty acids are altered relative to that in the lipid produced by an oleaginous microbe lacking the exogenous gene.