NOVELTY - Method (M1) of lignocellulosic biomass conversion involves obtaining non-chemically pretreated, milled lignocellulosic biomass having particle size less than or equal to 300 microns; reacting the milled lignocellulosic biomass with enzymatic agent to produce slurry that includes converted monomeric lignocellulosic sugars and lignin-rich residuals; and separating the slurry into sugar composition that includes the converted monomeric lignocellulosic sugars and lignin-rich composition that includes the lignin-rich residuals.    USE - For lignocellulosic biomass such as softwood, conversion (claimed) to produce sugar and lignin-rich streams, and downstream conversion products; for production of carbohydrates (such as sugars) and downstream processes (such as fermentation to alcohols).    ADVANTAGE - The methods provide clean (e.g. free of fermentation inhibitors and other chemical residuals), low-sulfur lignocellulosic sugar and lignin-rich residual production from enzymatic hydrolysis performed on lignocellulosic biomass without chemical pretreatment. The clean lignocellulosic hydrolysis products present fewer process and cost obstacles in various downstream applications such as conversion of lignocellulosic sugar to alcohol, organic acids and polymer precursors and/or use of lignin-rich residuals.    DETAILED DESCRIPTION - Method (M1) of lignocellulosic biomass conversion involves obtaining non-chemically pretreated, milled lignocellulosic biomass having particle size less than or equal to 300 microns; reacting the milled lignocellulosic biomass with enzymatic agent to produce slurry that includes converted monomeric lignocellulosic sugars and lignin-rich residuals; and separating the slurry into sugar composition that includes the converted monomeric lignocellulosic sugars and lignin-rich composition that includes the lignin-rich residuals; where the sugar composition, not including water, includes at least 75% of monomeric lignocellulosic sugar, less than or equal to 0.2% of sulfur and less than or equal to 3% of metal ion content; and where the lignin-rich composition includes at least 35% of lignin and less than or equal to 0.5% of sulfur. INDEPENDENT CLAIMS are included for the following:    (1) fuel incorporating the lignin composition, where the fuel is at least one of solid fuel and liquid fuel comprising suspension of the lignin composition; and    (2) method (M2) of hydrolytic lignocellulosic biomass conversion involving first hydrolysis reaction, reacting non-chemically pretreated, milled lignocellulosic biomass to with enzymatic agent to produce first slurry that includes converted lignocellulosic sugars, lignin-rich residuals and unused enzymatic agent; mixing additional non-chemically pretreated, milled lignocellulosic biomass with the first slurry to produce slurry mixture; separating the converted lignocellulosic sugars from the slurry mixture; second hydrolysis reaction, reacting the non-chemically pretreated, milled lignocellulosic biomass in the slurry mixture with the unused enzymatic agent in the slurry mixture to produce second slurry that includes converted lignocellulosic sugars and lignin-rich residuals; and separating the converted lignocellulosic sugars from the second slurry.