TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: In the process (P1), the bio-oil (at least 5 wt.%) subjected to the separating step is separated into the bio-distillate fraction. The separating step is accomplished by fractional distillation. The bio-oil is not subjected to additional deoxygenation between the converting step and separating step. In the process (P2), the renewable distillate comprises the bio-distillate fraction of at least 2 (preferably at least 5) wt.%. The bio-oil results from the thermochemical conversion of biomass in the presence of a catalyst. The bio-oil has a total oxygen content of less than 15 wt.%. Preferred Components: The bio-distillate fraction has total oxygen content (less than 15 wt.%), carbonyls (less than 1 wt.%), and carboxylic acid (less than 0.5 wt.%). The bio-distillate fraction has aldehydes (less than 0.5 wt.%), and further comprises oxygen- and carbon-containing compounds (10-40 wt.%), where the oxygen- and carbon-containing compounds are selected from phenolics, furans, ketones, and/or aldehydes. The petroleum-derived-distillate-range stream is selected from regular distillate, low sulfur distillate, hydroprocessed light cycle oil, hydrotreated straight run gas oil, ultra-low sulfur distillate, and/or refinery processed middle distillate. The petroleum-derived-distillate-range stream comprises hydrocarbons having 12-25 carbon atoms per molecule.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The stabilizing additive comprises material selected from non-ionic block-copolymer having hydrophile-lipophile balance (HLB) of at most eight; a non-ionic homopolymer having an HLB of at most eight, mixture of a non-ionic block-copolymer and non-ionic homopolymer having an average HLB of at most eight; non-ionic surfactant having an average HLB of at most eight; and/or fatty acid methyl ester (FAME) (preferably FAME). The HLB values of the non-ionic block-copolymer, the non-ionic homopolymer, the mixture of the non-ionic block-copolymer and the non-ionic homopolymer and the non-ionic surfactant are at least two. The stabilizing additive comprises the non-ionic block-copolymer, non-ionic homopolymer, and/or the non-ionic surfactant; and where the stabilizing additive and the bio-distillate fraction are either simultaneously or sequentially added to the petroleum-derived-distillate-range stream, to form the renewable distillate. The stabilizing additive comprises FAME; and where the bio-distillate fraction is combined with the stabilizing additive prior to combination with the petroleum-derived-distillate-range stream, to form the renewable distillate. EXAMPLE - No suitable example given.