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Treusch K, Schwaiger N, Huber A, Hammerschlag B, Außerleitner J, Pucher P, Siebenhofer M. Simultane Hydrodeoxygenierung von Flüssigphasenpyrolyseöl und Erdölraffinationsintermediaten zu Treibstoffen mit biogenem Anteil. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- K. Treusch
- TU Graz; Institut für Chemische Verfahrenstechnik und Umwelttechnik; Inffeldgasse 25c 8010 Graz Österreich
- BDI-BioEnergy International GmbH; Parkring 18 8074 Raaba-Grambach Österreich
| | - N. Schwaiger
- TU Graz; Institut für Chemische Verfahrenstechnik und Umwelttechnik; Inffeldgasse 25c 8010 Graz Österreich
- BDI-BioEnergy International GmbH; Parkring 18 8074 Raaba-Grambach Österreich
| | - A. Huber
- TU Graz; Institut für Chemische Verfahrenstechnik und Umwelttechnik; Inffeldgasse 25c 8010 Graz Österreich
| | - B. Hammerschlag
- TU Graz; Institut für Chemische Verfahrenstechnik und Umwelttechnik; Inffeldgasse 25c 8010 Graz Österreich
| | - J. Außerleitner
- TU Graz; Institut für Chemische Verfahrenstechnik und Umwelttechnik; Inffeldgasse 25c 8010 Graz Österreich
| | - P. Pucher
- BDI-BioEnergy International GmbH; Parkring 18 8074 Raaba-Grambach Österreich
| | - M. Siebenhofer
- TU Graz; Institut für Chemische Verfahrenstechnik und Umwelttechnik; Inffeldgasse 25c 8010 Graz Österreich
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Treusch K, Schwaiger N, Schlackl K, Nagl R, Rollett A, Schadler M, Hammerschlag B, Ausserleitner J, Huber A, Pucher P, Siebenhofer M. High-throughput continuous hydrodeoxygenation of liquid phase pyrolysis oil. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00016f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Liquid phase pyrolysis oil was successfully hydrodeoxygenated in continuous operation at liquid hourly space velocities of up to 3 h−1.
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Affiliation(s)
- K. Treusch
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
- BDI – BioEnergy International GmbH
- Austria
| | - N. Schwaiger
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
- BDI – BioEnergy International GmbH
- Austria
| | - K. Schlackl
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
| | - R. Nagl
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
| | - A. Rollett
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
| | - M. Schadler
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
| | - B. Hammerschlag
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
| | - J. Ausserleitner
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
| | - A. Huber
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
| | - P. Pucher
- BDI – BioEnergy International GmbH
- Austria
| | - M. Siebenhofer
- Institute of Chemical Engineering and Environmental Technology
- Graz University of Technology
- Austria
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Treusch K, Ritzberger J, Schwaiger N, Pucher P, Siebenhofer M. Diesel production from lignocellulosic feed: the bioCRACK process. R Soc Open Sci 2017; 4:171122. [PMID: 29291098 PMCID: PMC5717672 DOI: 10.1098/rsos.171122] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/13/2017] [Indexed: 05/23/2023]
Abstract
The bioCRACK process is a promising technology for the production of second generation biofuels. During this process, biomass is pyrolized in vacuum gas oil and converted into gaseous, liquid and solid products. In cooperation with the Graz University of Technology, the liquid phase pyrolysis process was investigated by BDI - BioEnergy International AG at an industrial pilot plant, fully integrated in the OMV refinery in Vienna/Schwechat. The influence of various biogenous feedstocks and the influence of the temperature on the product distribution in the temperature range of 350°C to 390°C was studied. It was shown that the temperature has a major impact on the product formation. With rising temperature, the fraction of liquid products, namely liquid CHO-products, reaction water and hydrocarbons, increases and the fraction of biochar decreases. At 390°C, 39.8 wt% of biogenous carbon was transferred into a crude hydrocarbon fractions. The type of lignocellulosic feedstock has a minor impact on the process. The biomass liquefaction concept of the bioCRACK process was in pilot scale compatible with oil refinery processes.
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Affiliation(s)
- K. Treusch
- BDI – BioEnergy International AG, Parkring 18, 8074 Raaba-Grambach, Austria
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria
| | - J. Ritzberger
- BDI – BioEnergy International AG, Parkring 18, 8074 Raaba-Grambach, Austria
| | - N. Schwaiger
- BDI – BioEnergy International AG, Parkring 18, 8074 Raaba-Grambach, Austria
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria
| | - P. Pucher
- BDI – BioEnergy International AG, Parkring 18, 8074 Raaba-Grambach, Austria
| | - M. Siebenhofer
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria
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Schwaiger N, Rollett A, Schadler M, Pichler T, Pucher P, Siebenhofer M. Liquid-Phase Pyrolysis-Based Biomass Liquefaction. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Schwaiger N, Pucher H, Feiner R, Ellmaier L, Pucher P, Siebenhofer M. Verflüssigung von Biomasse. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Schwaiger N, Witek V, Feiner R, Pucher H, Zahel K, Pieber A, Pucher P, Ahn E, Chernev B, Schroettner H, Wilhelm P, Siebenhofer M. Formation of liquid and solid products from liquid phase pyrolysis. Bioresour Technol 2012; 124:90-4. [PMID: 22989638 DOI: 10.1016/j.biortech.2012.07.115] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 07/25/2012] [Accepted: 07/26/2012] [Indexed: 05/03/2023]
Abstract
The aim of the present work was to improve the C:O ratio in biomass by preserving the lignin macrostructure of lignocellulosic feed. The intention of liquid phase pyrolysis is to liquefy biomass and prepare biomass for further upgrading steps like hydrogenation and deoxygenation. Pyrolysis was carried out in a non-aqueous liquid phase heat carrier. The process was carried out in a semi-batch reaction vessel under isothermal conditions at T=350°C, supported by a quench to stop reactions instantaneously in order to observe formation of solid intermediates. This pyrolysis system enables the observation of liquid and solid product formation. Transformation of biomass into biochar was analyzed by infrared spectroscopy and elemental analysis. Stable lignin structure throughout the whole transformation was confirmed. It was shown that the lignin frame in wood remains without substantial loss, while the major amount of carbohydrates is pyrolyzed during liquid phase pyrolysis at T=350°C.
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Affiliation(s)
- N Schwaiger
- Institute of Chemical Engineering, Graz University of Technology, Graz, Austria.
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Feiner R, Pucher H, Schwaiger N, Siebenhofer M, Pucher P. BiomassPyrolysisRefinery (BPR): Verflüssigung von Pyrolysekohle. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201250075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Pucher H, Feiner R, Schwaiger N, Pucher P, Siebenhofer M. BiomassPyrolysisRefinery: Pyrolyseöl-Hydro-Deoxygenierung. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201250080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schwaiger N, Feiner R, Pucher H, Zahel K, Schröttner H, Siebenhofer M. BiomassPyrolysisRefinery: Ein zweistufiges Konzept zur Herstellung von flüssigen Energieträgern aus Lignocellulose. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201250084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Touqmatchi D, Schwaiger N, Cotzias C. How good are obstetric and gynaecology trainees at reviewing and debriefing their patients following operative deliveries? J OBSTET GYNAECOL 2011; 31:687-91. [PMID: 22085054 DOI: 10.3109/01443615.2011.604749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
High levels of obstetric involvement are associated with psychological morbidity in patients postnatally. Operative deliveries contribute to up to 40% of deliveries. Given this, we decided to assess how well patients were being reviewed and debriefed following operative deliveries within our unit. A total of 53 notes following operative deliveries were analysed. To assess the quality of debriefing, the notes were reviewed for evidence of documentation on discussion for reason, procedure and complications of mode of delivery, advised plan for next delivery and contraception advice. Feedback questionnaires were given to patients on discharge to complete, regarding their understanding on the events surrounding their delivery. To assess how well doctors reviewed their own deliveries, we searched the notes for documented evidence of primary operator review. Our results identify significant deficiencies in doctors reviewing and debriefing patients following operative deliveries.
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Affiliation(s)
- D Touqmatchi
- Department of Obstetrics and Gynaecology, West Middlesex University Hospital, London, UK.
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Schwaiger N, Wu J, Wright B, Morrissey L, Harris M, Rohanizadeh R. BioWeld® Tube and surgical glue for experimental sutureless venous microanastomosis. Br J Surg 2010; 97:1825-30. [DOI: 10.1002/bjs.7257] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2010] [Indexed: 11/06/2022]
Abstract
Abstract
Background
The medial wall of mammalian veins is generally thin and fragile compared with the thick muscle seen in arteries. This makes venous microanastomoses time consuming and challenging. This study aimed to determine the feasibility and effectiveness of using the BioWeld® Tube in conjunction with a surgical glue (butyl-2-cyanoacrylate) in performing sutureless venous microanastomoses.
Methods
The feasibility and effectiveness of microvascular anastomoses in a rabbit jugular vein model were investigated in six animals, using the BioWeld® Tube in conjunction with butyl-2-cyanoacrylate surgical glue. Patency and tissue repair mechanisms at the anastomotic site were assessed 1 week after the procedure.
Results
All anastomoses remained patent at 1 week. Muscle necrosis occurred only in areas where the tissue was subject to the fold-and-bond procedure.
Conclusion
The study showed the feasibility and short-term effectiveness of the BioWeld® Tube in facilitating venous anastomoses.
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Affiliation(s)
- N Schwaiger
- Clinic for Hand-, Plastic- and Microsurgery Friederikenstift, Hanover, Germany
| | - J Wu
- Victor Chang Cardiac Research Institute, University of Wollongong, Sydney, New South Wales, Australia
| | - B Wright
- Eddyline, University of Wollongong, Sydney, New South Wales, Australia
| | - L Morrissey
- Graduate School of Medicine, University of Wollongong, Sydney, New South Wales, Australia
| | - M Harris
- TM Ventures, University of Sydney, Sydney, New South Wales, Australia
| | - R Rohanizadeh
- Faculty of Pharmacy, University of Sydney, Sydney, New South Wales, Australia
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Schwaiger N, Mertlitz V, Pucher P, Ahn E, Siebenhofer M. Feste und flüssige Produkte der Flüssigphasen-Pyrolyse. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mertlitz V, Schwaiger N, Siebenhofer M. Thermische Biomassedegradation. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Aust MC, Reimers K, Gohritz A, Jahn S, Stahl F, Repenning C, Scheper T, Altintas MA, Schwaiger N, Redeker J, Vogt PM. Percutaneous collagen induction. Scarless skin rejuvenation: fact or fiction? Clin Exp Dermatol 2010; 35:437-9. [DOI: 10.1111/j.1365-2230.2010.03779.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Mertlitz V, Schwaiger N, Ahn E, Siebenhofer M. Flüssigphasen-Pyrolyse biogener Edukte. CHEM-ING-TECH 2009. [DOI: 10.1002/cite.200950409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wright B, Vicaretti M, Schwaiger N, Wu J, Trickett R, Morrissey L, Rohanizadeh R, Fletcher J, Maitz P, Harris M. Laser-assisted end-to-end BioWeld anastomosis in an ovine model. Lasers Surg Med 2008; 39:667-73. [PMID: 17886280 DOI: 10.1002/lsm.20541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The BioWeld tube, an albumin-based exovascular stent, has been used for microsurgical anastomoses and compared to conventional sutures. The study presented investigated the potential of the BioWeld tube for vascular anastomosis in larger vessels. Laser-assisted BioWeld anastomoses were compared to conventional-sutured anatomoses of the carotid artery of Merino-x ewes. The BioWeld procedure resulted in 100% survival and 100% patency at 1 and 6 week post-operative periods, with no noticeable foreign body response. Sutured animals showed 100% survival and patency. The ischemic time for BioWeld anastomosis averaged 15 minutes compared with 10 minutes for sutures. This study indicates that the BioWeld tube is an easy to use anastomotic technique with equivalent success rates and comparable anastomotic times.
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Affiliation(s)
- B Wright
- Avastra Ltd. Riverside Life Science Centre, 11 Julius Avenue, North Ryde, NSW 2113, Australia.
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