NOVELTY - Producing hydrocarbons from biomass involves providing renewable biological feedstock stream; subjecting feed stream to heat in presence of hydrogen and first catalyst to produce hydrocarbons which are predominantly n-paraffins; separating hydrocarbons into lighter and heavier fraction; hydrocracking heavier fraction by subjecting heavier fraction to heat in presence of second catalyst to produce lighter paraffins; and combining middle distillate fraction of hydrocracked products with lighter n-paraffin fraction to yield middle distillate fuel.    USE - For producing hydrocarbons from biomass (claimed) such as liquefied petroleum gas (LPG), naphtha, and middle distillate fuels, such as jet, kerosene, and diesel, from fatty acids and glycerides.    ADVANTAGE - The product provides alternative processing method for producing a renewable middle distillate by blending hydrocracked middle distillate with predominantly 16C minus n-paraffin light fraction from hydrotreated biorenewable feedstock. The resultant middle distillate product has improved cold temperature properties by mixing the predominantly 16C minus n-paraffin light fraction with hydrocracked middle distillate derived from the hydrocracking of predominantly 17C plus n-paraffin heavy fraction.    DETAILED DESCRIPTION - Producing hydrocarbons from biomass involves providing renewable biological feedstock stream containing free fatty acids and/or fatty acid esters; subjecting the feed stream to heat in the presence of hydrogen and first catalyst to produce hydrocarbons which are predominantly n-paraffins; separating hydrocarbons into lighter fraction and heavier fraction; hydrocracking the heavier fraction by subjecting the heavier fraction to heat in presence of second catalyst to produce lighter paraffins; and combining middle distillate fraction of the hydrocracked products with lighter n-paraffin fraction to yield a middle distillate fuel. INDEPENDENT CLAIMS are included for the following:    (1) middle distillate hydrocarbon composition (C1) suitable for diesel engines, consisting of paraffins (at least 99%) of which (a) 16C minus n-paraffins (at least 7 wt.%); (b) 17C plus n-paraffins (at most 5 wt.%); where paraffins (at least 99%) are derived from hydrotreating and hydrocracking of renewable biological feedstock; and    (2) liquefied petroleum gas (LPG) composition (C2) comprising propane, butane, and isobutane; and derived from hydrotreating and hydrocracking of renewable biological feedstock.