doi:10.1002/ente.201600183engFonts, I.Navarro-Puyuelo, A.Ruiz-Gómez, N.Atienza-Martínez, M.Wisniewsky, A.Gea, G.Assessment of the Production of Value-Added Chemical Compounds from Sewage Sludge Pyrolysis LiquidsART-2017-97858A procedure to analyze sewage sludge (SS) pyrolysis liquids based on solvent fractionation has been developed. Pyrolysis liquids are separated into three different fractions: heptane soluble (Hep-sol), dichloromethane soluble (DCM-sol), and hydrochloric acid soluble (HCl-sol). Diverse techniques (GC-MS, UPLC-TOF-MS) were employed to qualitatively and quantitatively analyze liquid fractions to assess the potential production of value-added chemicals. Aliphatic hydrocarbons, aliphatic nitriles, and steroids were mostly separated in the Hep-sol fraction, phenols and fatty acids in the DCM-sol fraction, and carboxylic acids and amides in the HCl-sol fraction. The largest production was obtained for ammonia (10–14 kg per tonne of SS) and a-olefins (8–9 kg per tonne of SS). The potential production of some of these value-added chemicals from SS pyrolysis liquid was compared with their current European production. In the case of a-olefins, 16 % of their European production could be achieved by SS pyrolysis.2017http://zaguan.unizar.es/record/6040310.1002/ente.201600183http://zaguan.unizar.es/record/60403oai:zaguan.unizar.es:60403info:eu-repo/grantAgreement/ES/DGA/GPTinfo:eu-repo/grantAgreement/ES/MINECO/CTQ2013-47260-REnergy Technology 5, 1 (2017), 151-171byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess