twin screw reactor

  • Auger reactor - PyroWiki

    The reactor design is adopted from the Lurgi-Ruhrgas twin screw mixer reactor that was developed decades ago for oil shale, tar sand and refinery vacuum residues (LR coking). Chopped biomass is mixed with hot sand in the double-screw reactor and decomposed to vapors and char. The hot sand loop is maintained pneumatically or mechanically.

  • Twin screw extrusion technology | Clextral

    The Twin Screw Extrusion (TSE) process, developed by Clextral for over 50 years, enables the continuous production of highly homogeneous and finely structured products, using bio-sourced or synthetic raw materials. It is used to produce a wide range of Food & Feed products, Cellulose pulps, Bio-sourced plastics and chemicals. How does extrusion work? ...

  • Development of a test rig for a helium twin-screw ...

    A large helium cryogenic system is being developed for use in great science projects, such as the International Thermonuclear Experimental Reactor (ITER), Large Helical Device (LHD), and the Experimental Advanced Superconducting Tokamak (EAST). In this cryogenic system, a twin-screw compressor is a ...

  • Department Of Biosystems Engineering, Faculty of ...

    Department Of Biosystems Engineering, Faculty of Bioscience Engineering, Ghent University (Belgium) ... •Pyrolysis reactor configurations ... •Auger or screw reactor •Single or twin screw configurations Forebiom Workshop 2013. 9

  • Concentrated Acid Conversion of Pine Softwood to Sugars ...

    The first stage of a two-step concentrated sulfuric acid process that converts softwood sawdust to sugars has been explored. The research focuses on the ability of an in-house custom fabricated corotating twin-screw reactor (TSR) to effectively break down and solubilize crystalline cellulose into low molecular weight carbohydrates. Based on design of experiment ( DOE) screening results, a four ...

    Cited by: 24
  • REACTIVE PROCESSING USING AN EXTRUDER - Pluss

    REACTIVE PROCESSING USING AN EXTRUDER . DEVENDRA JAIN . Pluss Polymers Pvt. Ltd., New Delhi . The Reactive Processing will need a whole book to cover the work done in the field besides discussion on suitability of the type of machine best suited for the job. This presentation only hopes to provide an introduction to the subject.

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  • Fast pyrolysis of lignocellulosics in a twin screw mixer ...

    A twin-screw type reactor, in earlier applications used for treatment of coal, oil shale, oil sand and oil refinery residues, was used. Test campaigns with a variety of biomass types were performed. The results with hard-wood, softwood, wheat straw and wheat bran are reported and discussed in this paper, verifying the suitability of the twin ...

  • Optimized Compounds, LLC - Optimized Compounds, LLC

    The design of the twin screw extruder provides much versatility as a reactor for viscous mixtures whether polymeric in nature or heavy viscous liquid systems. We are a growing polymer processing and development company focusing on compounding, reactive .

  • REACTIVE TWIN-SCREW EXTRUSION VALVE - GAS TECHNOLOGY .

    Mar 22, 2018 · FIG. 3A shows a front view of a twin-screw extruder used to prepare HTC biomass according to one preferred embodiment, showing the plane of Section A-A. FIG. 3B is a cross-sectional view of the twin-screw extruder shown in FIG. 3A, taken along Section A-A.

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  • Thermomechanical and thermo-mechano-chemical pretreatment ...

    Thermomechanical and Thermo-mechano-chemical Pretreatment of Wheat Straw using a Twin-screw Extruder. ie Vandenbossche, a,b, * Catherine Doumeng, a,b and Luc Rigal a,b. Different thermo-mechanical extrusion pretreatments were evaluated as alternatives to traditional biomass pretreatments for lignocellulosic ethanol production.

  • Reactive Extrusion for Twin Screw Extrusion Pro - Online ...

    Reactive Extrusion for Twin Screw Extrusion Professionals. This is a Past Course. Recorded on Mar 12, 2019. ... It was useful to have a general overview of some key points/parameter in REX in twin screw. The Q&A was useful. ... Learnt about possibilities of using a twin screw extruder as a reactor. Also, learnt about set up, start up and ...

  • USS Triton (SSRN-586) - Wikipedia

    While Triton ' s twin reactor plant was designed to be refueled by a submarine tender like other U.S. nuclear submarines, because of the complexity of her zirconium-clad fuel elements, Triton ' s previous re-fueling had been done in a shipyard during her 1962–1964 overhaul.

  • Hybrid Reactor / Twin Shaft Continuous Reactor | Product ...

    This new reactor is the next level in enhanced performance from our hold-up type reactors, and is based on KURIMOTO's knowhow for its twin-shaft continuous kneader (KRC Kneader) gained over many years. Hybrid Reactor has excellent basic performance in areas such as high-viscosity continuous processing, maintaining long residence time, plug-flow ...

  • TPE Thermoplastic Elastomers – Coperion

    Numerous twin screw compounding systems from Coperion are in operation worldwide for the processing of thermoplastic elastomers in a wide variety of shapes and formulations. Coperion K-Tron feeders ensure that both elastomers and additives are added into the process consistently and accurately for an optimal result.

  • Use of a Twin-Screw Extruder as a Chemical Reactor for ...

    The objective of this work was to study the obtaining of cationic starch by using a pilot scale twin-screw extruder Clextral BC45 as a chemical reactor. The reagent was 3-chloro 2-hydroxypropyltrimethyl ammonium chloride (CHPTMA) and catalyst was sodium hydroxide (NaOH).

  • Department Of Biosystems Engineering, Faculty of ...

    Department Of Biosystems Engineering, Faculty of Bioscience Engineering, Ghent University (Belgium) ... •Pyrolysis reactor configurations ... •Auger or screw reactor •Single or twin screw configurations Forebiom Workshop 2013. 9

  • WANGEN Twin screw pump for food & beverage ...

    Mar 07, 2013 · WANGEN pumps for the beverage industry: Sanitary screw pump WANGEN Twin and progressing cavity pumps of series-SL-RL and TL, also available with CIP and SIP flanges or with EHEDG certificate.

  • Extrusion Pretreatment of Lignocellulosic Biomass: A Review

    Oct 20, 2014 · Bioconversion of lignocellulosic biomass to bioethanol has shown environmental, economic and energetic advantages in comparison to bioethanol produced from sugar or starch. ... A twin screw extruder reactor was also used for concentrated-acid hydrolysis of pine sawdust to break down and convert cellulose into low molecular weight carbohydrates.

  • CN101143918A - Method for controlling double-screw reactor ...

    The invention relates to a method which utilizes reactive temperature raising and gelation time to control a double-screw reactor to produce TPU. The method is characterized as follows: Molecular weight selected between 500 and 5000 in polyol; Chain extender including small-molecular diol and diamine; Isocyanate including aromatic series and aliphatic diisocyanate; Promoter; Screw parameter ...

  • Fast pyrolysis of lignocellulosics in a twin screw mixer ...

    Twin screw mixer reactors operated at 600 °C with up to 1.1 m outer screw diameter and 600 m 3 /h circulating heat carrier were already built . The essential design characteristic is the circulation of a hot grainy heat carrier in a closed loop via the twin screw mixer reactor and a heat exchanger.

    Cited by: 21[PDF]
  • Fast Pyrolysis of Biomass Residues in a Twin-screw Mixing ...

    The work presented in the following has been conducted with a twin-screw mixing reactor. It presents a robust technology that has already been applied on an industrial scale for pyrolysis of coal and on a pilot scale for oil sands 8. The purpose of the twin-screw mixing reactor is to mix the solid biomass feed with a solid, pre-heated heat carrier.

    Cited by: 7
  • Glycol Glucosides from Starch by Continuous Twin ...

    3,618.902 was employed as the reactor. The mixing design ofthe processor (extruder) is similar to that ofcorotating. intermeshing twin-screwextruders in that materials flow in a horizontal figure­ eight-shaped pattern. Each screw shaft of the extruder was equipped with a 106-mm-Iongfeed screw .

  • SDR (free surface)/Twin Screw Dryer

    SDR (free surface)/Twin Screw Dryer (first approaches) JUNE, 21st 2017. NEWCASTLE PIN MEETING. ... •Open Spinning Disk Reactor –Example of 3 inlet case •Twin Screw Dryer –Complex physical phenomena –Available modeling techniques ... •Twin Screw dryer

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  • Biomass pyrolysis in a twin-screw reactor to produce green ...

    Biomass pyrolysis in a twin-screw reactor to produce green fuels. ... This paper highlights work done with a twin-screw reactor or auger reactor, with temperature profiles of near 500 °C, and ...

  • Specialty Twin Screw | B&P Littleford

    The largest twin-screw reactor to be built anywhere in the world to date was shipped from our Saginaw, Michigan factory in 1969. One of two MP-Series specialty extruders built for one of the world's largest chemical companies, the twin stainless steel screws were 889 mm in diameter (35")!

  • Twin screw extrusion technology | Clextral

    The Twin Screw Extrusion (TSE) process, developed by Clextral for over 50 years, enables the continuous production of highly homogeneous and finely structured products, using bio-sourced or synthetic raw materials. It is used to produce a wide range of Food & Feed products, Cellulose pulps, Bio-sourced plastics and chemicals. How does extrusion work? ...

    [PDF]
  • Fast Pyrolysis of Biomass Residues in a Twin-screw Mixing ...

    De gepresenteerde protocol voor snelle pyrolyse in een twin-schroef mengen reactor kan worden gerealiseerd op verschillende schalen met enkele aanpassingen. Thij bij een eenheid gepresenteerd met een invoercapaciteit van 10 kg h-1 blijkt een mogelijke compromis tussen operationele complexiteit en betekenisvolle resultaten werkwijze gedrag. Het ...

  • Twin Screw Reactor Design for Biomass Pyrolysis - World ...

    Temperatures between 350 C and 450 C have been applied to characterize the yields and reactor problem has been identified. This work reports the problems faced with the twin screw reactor, troubleshooting which will result in bio-oil, one of the main products of fast pyrolysis.

    Author: Debajyoti Bose, Aditya Mekala, Leena Kapoor
  • Optimized Compounds, LLC - Optimized Compounds, LLC

    The design of the twin screw extruder provides much versatility as a reactor for viscous mixtures whether polymeric in nature or heavy viscous liquid systems. We are a growing polymer processing and development company focusing on compounding, reactive .

  • USS Seawolf (SSN-575) - Wikipedia

    Comparison to Nautilus. Seawolf was the same basic "double hull" twin-screw submarine design as her predecessor USS Nautilus (SSN-571), but her propulsion system was more technologically advanced.The Submarine Intermediate Reactor (SIR) nuclear plant was designed by General Electric's Knolls Atomic Power Laboratory and prototyped in West Milton, New York.

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