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Fluidization - Wikipedia

Fluidization - Wikipedia

Catalytic gasification of bamboo in a laboratory-scale, fluidized bed reactor was investigated. Experiments were performed to determine the effects of reactor temperature (400, 500, and 600°C), gasifying medium (air and air/steam), and catalyst to biomass ratio (0 : 1, 1 : 1, and 1.5 : 1) on product gas composition, H 2 /CO ratio, carbon conversion efficiency, heating value, and tar conversion. Hydrogen-Rich Gas Production by Cogasification of Coal and Biomass in an Intermittent Fluidized Bed Article (PDF Available) in The Scientific World Journal 2013(7):276823 · September 2013 with 54 ...

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Fluidization: A Unit Operation in Chemical Engineering

Fluidization: A Unit Operation in Chemical Engineering

Gasification is achieved by partially combusting the biomass in the reactor, and using the heat generated to pyrolyse or thermally break down the rest of the material into volatile gasses. A well built gasifier will convert wood or other cellulosic biomass into … Catalytic gasification of bamboo in a laboratory-scale, fluidized bed reactor was investigated. Experiments were performed to determine the effects of reactor temperature (400, 500, and 600°C), gasifying medium (air and air/steam), and catalyst to biomass ratio (0 : 1, 1 : 1, and 1.5 : 1) on product gas composition, H2/CO ratio, carbon conversion efficiency, heating value, and tar conversion.

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Gasification - Wikipedia

Gasification - Wikipedia

Gas Flow Meters & Controllers Accurate Mass Flow Measurement. Sierra designs and manufactures a wide range of today's most advanced analog and digital gas flow meters, mass flow meters, controllers and switches across three core technologies: Capillary Thermal, Immersible Thermal, and Mass Vortex.Each gas flowmeter or gas controller meets exacting standards, and we can also customize your flow ... Abstract. Catalytic steam gasification of fine coal char particles was carried out using a self-made laboratory reactor to determine the intrinsic kinetics and external diffusion under varying pressures (0.1–0.5 MPa) and superficial gas flow velocities (GFVs) of 13.8– 68.8 cm∙s −1.In order to estimate the in-situ gas release rate at a low GFV, the transported effect of effluent gas on ...

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A Home-Built Biomass Gasifier for Producing Wood Gas : …

A Home-Built Biomass Gasifier for Producing Wood Gas : …

A new 4 in. (102 mm) diameter fluidized-bed reactor has been built and used to study the effect of biomass particle size on the yield of light gas and tar compounds during gasification. As shown in the process flow diagram, the coal is first slurried with water and fed to the first stage of the gasifier. Oxygen with a purity of 95% is provided from the Air Separation Unit (ASU) and the coal is partially combusted to maintain a temperature of 1370 °C. Raw fuel gas is produced as the coal chemically reacts with oxygen and steam.

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Effect of Operating Conditions on Catalytic Gasification ...

Effect of Operating Conditions on Catalytic Gasification ...

A fluidized bed reactor (FBR) is a type of reactor device that can be used to carry out a variety of multiphase chemical reactions. In this type of reactor, a fluid (gas or liquid) is passed through a solid granular material (usually a catalyst possibly shaped as tiny spheres) at high enough speeds to suspend the solid and cause it to behave as though it were a fluid. Schematic diagram of fluidized bed coal pyrolyzer. 1. Pressm-e regulator 9. Coal hopper 2. Valve and flow-meter 10. Cyclone 3. Gas plenm-n 11. Condenser 4. Fluidized bed 12. A collector 5 ...

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(PDF) Characterization and pilot scale test of a fluidized ...

(PDF) Characterization and pilot scale test of a fluidized ...

Fluidization (or fluidisation) is a process similar to liquefaction whereby a granular material is converted from a static solid-like state to a dynamic fluid-like state.This process occurs when a fluid (liquid or gas) is passed up through the granular material.When a gas flow is introduced through the bottom of a bed of solid particles, it will move upwards through the bed via the empty ... 4.2.5 Liquid-Ring Vacuum Pump ... 6-1 Calculating the moles of gas from volume, temperature, and pressure ... 3-1 Saturation Level (S) Plotted as a Function of Exit Vent Gas Flow Rate ...

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(PDF) Hydrogen-Rich Gas Production by Cogasification of ...

(PDF) Hydrogen-Rich Gas Production by Cogasification of ...

 · Chemical and Process Engineering solution contains variety predesigned process flow diagram elements relating to instrumentation, containers, piping and distribution necessary for chemical engineering, and can be used to map out chemical processes or easy creating various Chemical and Process Flow Diagrams in ConceptDraw DIAGRAM. Reactor Concepts Manual Pressurized Water Reactor Systems USNRC Technical Training Center 4-5 0603 STEAM GENERATOR PRESSURIZER MAIN COOLANT PUMP REACTOR A three-loop Westinghouse plant has three steam generators, three reactor coolant pumps, and a pressurizer. The three-loop units in the United Stat es are Beaver Valley 1 a nd 2, Farley 1 and 2 ...

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Fluidized bed - Wikipedia

Fluidized bed - Wikipedia

Gas pressure was regulated by means of a needle valve. Gasification experiments using a lignite have been reported (1000°C, 25 bar). Another fluidised-bed pyrolysis-gasification reactor (1000°C; up to 25 bar) has been described by Hüttinger (Hüttinger, 1988; Hüttinger and Nattemann, 1994). CiteScore: 9.1 ℹ CiteScore: 2019: 9.1 CiteScore measures the average citations received per peer-reviewed document published in this title. CiteScore values are based on citation counts in a range of four years (e.g. 2016-2019) to peer-reviewed documents (articles, reviews, conference papers, data papers and book chapters) published in the same four calendar years, divided by the number of ...

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, Thanasit Wongsiriamnuay and Nakorn Tippayawong

, Thanasit Wongsiriamnuay and Nakorn Tippayawong

Siemens develops state-of-the-art gas turbines. Discover our product range – heavy-duty, industrial and aeroderivative gas turbines, ranging up to 593 MW.  · p is the total volume of particles within the fluidized bed. For a low density fluid, such as gas, the buoyancy force represents a small correction to the net gravitaional force. Since the drag forces (see Section 2.1.2) are generally written in terms of the bed voidage, it is convenient to express the gravity force in the same way.

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EIIP Vol. II: Chapter 16 Methods for Estimating Air ...

EIIP Vol. II: Chapter 16 Methods for Estimating Air ...

Piping and Instrument Diagram Standard Symbols Detailed Documentation provides a standard set of shapes & symbols for documenting P&ID and PFD, including standard shapes of instrument, valves, pump, heating exchanges, mixers, crushers, vessels, compressors, filters, motors and … The DOE Gasification Systems Program is developing innovative modular designs for converting diverse types of coal into clean synthesis gas to enable the low-cost production of electricity, transportation fuels, chemicals, hydrogen, and other useful products to suit market needs. Advancements in this area will help enable advanced power generation and other syngas-based technologies to be ...

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(PDF) Biomass Pyrolysis and Gasification of Varying ...

(PDF) Biomass Pyrolysis and Gasification of Varying ...

Abstract. Tar is an undesirable product of biomass gasification. Tar analysis is a challenging task because it is a complex mixture. The objectives of this study are to identify and quantify the major tar compounds in raw producer gas and deposits from a 10 kW downdraft gasifier using cedar pellets. A fluidized bed is a physical phenomenon occurring when a quantity of a solid particulate substance (usually present in a holding vessel) is placed under appropriate conditions to cause a solid/fluid mixture to behave as a fluid.This is usually achieved by the introduction of pressurized fluid through the particulate medium. This results in the medium then having many properties and ...

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Intrinsic kinetics and external diffusion of catalytic ...

Intrinsic kinetics and external diffusion of catalytic ...

Fuel gas production from gasification of bamboo in a fluidized bed reactor was investigated in this work. Experiments were performed to determine the effects of reactor temperature (700, 800, 900 ... Fuel Gas Production from Low Temperature Gasification of Bamboo in Fluidized Bed Reactor . Nattakarn Kannang*, Thanasit Wongsiriamnuay and Nakorn Tippayawong . Department of Mechanical Engineering Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand, 50200 *Corresponding author: [email protected], 0867283166 . Abstract

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Standard P&ID Symbols Legend | Industry Standardized P&ID ...

Standard P&ID Symbols Legend | Industry Standardized P&ID ...

of Natural Gas, and Natural Gas Liquids (NGL) Expanders, chosen for further investigation. These technologies were chosen due to their applicability relative to other technologies being considered by NREL for future commercial applications, such as indirect gasification and fluidized bed tar cracking. Flow Meter Bubbling Fluidized Bed Gasifier Exhaust Gas Diaphragm Impinger Train Pump Impingers 1-4 immersed in ice bath. Impingers 5-6 submerged in acetone/dry ice bath. Heated Micro GC Particulate Filter Flowrate: 1.0 L/min Diaphragm Pump Exhaust Gas Dichloromethane Mini-impinger Trains Flowrate: 4.5-5.5 L/min Catalytic Guard Bed Catalytic Tar ...

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