Search for dissertations about: "recirculation of process streams"

Showing result 1 - 5 of 11 swedish dissertations containing the words recirculation of process streams.

  2. 1. Recirculation of scrapped resources : The role of material information in enhancing the sustainability of recycling

    Author : Reinol Josef Compañero; Andreas Feldmann; Peter Samuelsson; Pär Jönsson; Guozhu Ye; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steel recycling; anthropogenic resources; scrap; value of information; Circular Economy; sustainability; Stål återvinning; antropogena resurser; skrot; cirkulär ekonomi; hållbarhet; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : Industries have responded to the climate change problem by positioning their activities as compatible with concepts such as the Circular Economy. Conveying the idea of maximizing and keeping the resources in a manner that aligns with the principles of sustainable development, the endorsements for implementing circularity measures has arguably become a boon for businesses. READ MORE

  4. 2. Development of Simultaneous Saccharification and Fermentation for Production of Ethanol from Softwood

    Author : Malek Alkasrawi; Centrum för analys och syntes; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical technology and engineering; Kemiteknik och kemisk teknologi; spruce; softwood; fermentation; cultivation; Tween-20; SSF; recirculation; Ethanol production; process streams;

    Abstract : This thesis deals with the development of simultaneous saccharification and fermentation (SSF) in order to improve the economy of the softwood-to-ethanol process. The effect of process stream recirculation on ethanol production from steam-pretreated softwood based on SSF was investigated for two process cases. READ MORE

  5. 3. Ethanol from Softwood - Process Development Based on Steam Pretreatment and SSF

    Author : Kerstin Stenberg; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; economy; infection; inhibition; recirculation; S. cerevisiae; SSF; steam pretreatment; ethanol production; process development; softwood; Carbochemistry; petrochemistry; fuels and explosives technology; Petrokemi; bränslen; sprängämnen;

    Abstract : Fuel ethanol can be produced from lignocellulosics by the enzymatic hydrolysis process, which consists of a pretreatment step prior to hydrolysis, followed by fermentation and finally refining. This thesis deals with the development of the enzymatic process using softwood as raw material. READ MORE

  6. 4. Ethanol from Softwood - Techno-Economic Evaluation for Development of the Enzymatic Process

    Author : Anders Wingren; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; process development; process simulation; ethanol production; Chemical technology and engineering; economic evaluation; softwood;

    Abstract : Ethanol produced from renewable resources can be used to replace fossil fuels such as gasoline and diesel. This thesis deals with the development of the enzymatic process used for ethanol production from softwood. READ MORE

  7. 5. Bioethanol Production: Pretreatment and Enzymatic Hydrolysis of Softwood

    Author : Charlotte Tengborg; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; recirculation of process streams; detoxification; inhibition; hydrolysis conditions; enzymatic hydrolysis; Ethanol production; steam pretreatment; softwood; Carbochemistry; petrochemistry; fuels and explosives technology; Petrokemi; bränslen; sprängämnen;

    Abstract : The enzymatic hydrolysis process can be used to produce bioethanol from softwood, which are the dominating raw material in the Northern hemisphere. This thesis deals with the development of the process focusing on the pretreatment and the enzymatic hydrolysis stages. READ MORE