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Li TT, Feng LF, Gu XP, Zhang CL, Wang P, Hu GH. Intensification of Polymerization Processes by Reactive Extrusion. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05078] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tian-Tian Li
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Lian-Fang Feng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Zhejiang University−Quzhou, 78 Jiuhua Boulevard North, Quzhou, 324000, China
| | - Xue-Ping Gu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Zhejiang University−Quzhou, 78 Jiuhua Boulevard North, Quzhou, 324000, China
| | - Cai-Liang Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Zhejiang University−Quzhou, 78 Jiuhua Boulevard North, Quzhou, 324000, China
| | - Pan Wang
- CNRS-Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP, CNRS UMR 7274), 1 rue Grandville, BP 20451, Nancy, 54001, France
| | - Guo-Hua Hu
- CNRS-Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP, CNRS UMR 7274), 1 rue Grandville, BP 20451, Nancy, 54001, France
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Characterization of plasticizing process of single screw extruder with grooved melting zone. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-2041-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Melting performance of single screw extruders with a grooved melting zone. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1544-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chen K, Lin X, Xue P, Jia M, Li C. Experimental investigation of the single screw extruder with grooved melting zone. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ke Chen
- Institute of Plastic Machinery and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Xudong Lin
- Institute of Plastic Machinery and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Ping Xue
- Institute of Plastic Machinery and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Mingyin Jia
- Institute of Plastic Machinery and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Chenxin Li
- Institute of Plastic Machinery and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
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Yan Q, Wang Y, Rodiahwati W, Spiess A, Modigell M. Alkaline-assisted screw press pretreatment affecting enzymatic hydrolysis of wheat straw. Bioprocess Biosyst Eng 2016; 40:221-229. [PMID: 27761655 DOI: 10.1007/s00449-016-1689-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 09/27/2016] [Indexed: 10/20/2022]
Abstract
Screw press processing of biomass can be considered as a suitable mechanically based pretreatment for biofuel production since it disrupts the structure of lignocellulosic biomass with high shear and pressure forces. The combination with chemical treatment has been suggested to increase the conversion of lignocellulosic biomass to fermentable sugars. Within the study, the synergetic effect of alkaline (sodium hydroxide, NaOH) soaking and screw press pretreatment on wheat straw was evaluated based on, e.g., sugar recovery and energy efficiency. After alkaline soaking (at 0.1 M for 30 min) and sequential screw press pretreatment with various screw press configurations and modified screw barrel, the lignin content of pretreated wheat straw was quantified. In addition, the structure of pretreated wheat straw was investigated by scanning electron microscopy and measurement of specific surface area. It could be shown that removal of lignin is more important than increase of surface area of the biomass to reach a high sugar recovery. The rate constant of the enzymatic hydrolysis increased from 1.1 × 10-3 1/h for the non-treated material over 2.3 × 10-3 1/h for the alkaline-soaked material to 26.9 × 10-3 1/h for alkaline-assisted screw press pretreated material, indicating a nearly 25-fold improvement of the digestibility by the combined chemo-mechanical pretreatment. Finally, the screw configuration was found to be an important factor for improving the sugar recovery and for reducing the specific energy consumption of the screw press pretreatment.
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Affiliation(s)
- Qingqi Yan
- Aachener Verfahrenstechnik, Mechanical Process Engineering, RWTH Aachen University, Turmstr. 46, 52064, Aachen, Germany.
| | - Yumei Wang
- Aachener Verfahrenstechnik, Enzyme Process Technology, RWTH Aachen University, Worringer Weg 1, 52074, Aachen, Germany.,DWI Leibniz Institute for Interactive Materials Research, Forckenbeckstr. 50, 52074, Aachen, Germany
| | - Wawat Rodiahwati
- Department of Chemical and Process Engineering, Thai-German Graduate School of Engineering, King Mongkut's University of Technology, North Bangkok, Bangkok, 10800, Thailand
| | - Antje Spiess
- Aachener Verfahrenstechnik, Enzyme Process Technology, RWTH Aachen University, Worringer Weg 1, 52074, Aachen, Germany.,DWI Leibniz Institute for Interactive Materials Research, Forckenbeckstr. 50, 52074, Aachen, Germany.,Institute of Biochemical Engineering (IBVT), TU Braunschweig, Rebenring 56, 38106, Brunswick, Germany
| | - Michael Modigell
- Aachener Verfahrenstechnik, Mechanical Process Engineering, RWTH Aachen University, Turmstr. 46, 52064, Aachen, Germany
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Xiaochun Y, Sai L, Guangjian H, Guizhen Z, Jinping Q. Experimental Study of the Extrusion Characteristic of a Vane Extruder Based on Extensional Flow. ADVANCES IN POLYMER TECHNOLOGY 2015. [DOI: 10.1002/adv.21545] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yin Xiaochun
- Key Laboratory of Polymer Processing Engineering of Ministry of Education; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Li Sai
- Key Laboratory of Polymer Processing Engineering of Ministry of Education; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - He Guangjian
- Key Laboratory of Polymer Processing Engineering of Ministry of Education; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Zhang Guizhen
- Key Laboratory of Polymer Processing Engineering of Ministry of Education; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Qu Jinping
- Key Laboratory of Polymer Processing Engineering of Ministry of Education; South China University of Technology; Guangzhou 510640 People's Republic of China
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Xu YS, Li JB, Zhang GZ, Zhao YQ, Qu JP. Study on Pumping Conveying Capacity Characteristics of Polymer Solids in Vane Extruder. INT POLYM PROC 2014. [DOI: 10.3139/217.2906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
A vane extruder consists of a group of vane plasticization units that can together be considered a vane pump. During extrusion, materials in the extruder are plasticized and conveyed by positive conveying and suppressed by normal stress. A mathematical model of the pumping capacity of polymer solids in the vane extruder is established based on its structure and conveying mechanism. The minimum bulk density under atmospheric pressure and leakage coefficient in this model are obtained experimentally. Four general polymer materials are chosen to investigate the pumping conveying capacity of polymer solids in the vane extruder. The experimental results of the first vane plasticization unit show that the pumping conveying capacity increases almost linearly with the rotor velocity and is only slightly influenced by the material properties. Furthermore, the leakage coefficient increases when the temperature and velocity in the vane extrusion process are set inappropriately; this reduces the pumping conveying capacity of polymer solids in the vane extruder.
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Affiliation(s)
- Y. S. Xu
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou , PRC
- Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou , PRC
| | - J. B. Li
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou , PRC
- Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou , PRC
| | - G. Z. Zhang
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou , PRC
- Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou , PRC
| | - Y. Q. Zhao
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou , PRC
- Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou , PRC
| | - J. P. Qu
- National Engineering Research Center of Novel Equipment for Polymer Processing , South China University of Technology, Guangzhou , PRC
- Key Laboratory of Polymer Processing Engineering of Ministry of Education , South China University of Technology, Guangzhou , PRC
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