US20020159500A1 - Thermocouple for use in gasification ...

An improved apparatus comprising a thermocouple for measuring the temperature in a gasification process is provided. The improvement comprises a sapphire envelope for enclosing at least a portion of the thermocouple. The sapphire envelope may be in the form of a sapphire sheath fitted over the thermocouple. The apparatus may also comprise a thermowell, with the sapphire envelope being …

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Gasification and physical-chemical characteristics of ...

Apr 01, 2021· HIsarna is one of the emerging ironmaking technologies developed by Tata Steel as part of the ULCOS. The process involves the two main technologies, cyclone and HIsmelt technology, Fig. 1.The cyclone melts the ore, fluxes, and pre-reduces the ore, whilst HIsmelt technology provides the final reduction of the liquid pre-reduced ore and coal gasification in the smelting reduction vessel (SRV).

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US Patent for Thermocouple for use in gasification process ...

Jun 27, 2002· An improved apparatus comprising a thermocouple for measuring the temperature in a gasification process is provided. The improvement comprises a sapphire envelope for enclosing at least a portion of the thermocouple. The sapphire envelope may be in the form of a sapphire sheath fitted over the thermocouple. The apparatus may also comprise a thermowell, with the sapphire envelope being …

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Analysis and treatment of welding crack of 304 stainless ...

Jul 28, 2020· In this experiment, the internal cooling water pipe was selected, and the connection method was flange connection.The internal materials of the inner cold water pipe and the flange are all 304 stainless steel, and a K-shaped groove is set at the specific weld position. During the overhaul, an obvious crack was found in the internal weld of the inner cold water pipe.

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A Slag Management Toolset for Determining Optimal Coal ...

Nov 25, 2016· The slag flows down the gasifier sidewalls, dissolves, and penetrates and reacts with the refractory lining that protects the stainless steel shell of the …

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US Patent Application for GASIFICATION REACTOR Patent ...

Jan 23, 2012· A gasification reactor including a gasifier with a tubular gastight wall arranged within a pressure vessel. ... Slag slides down from the inner surface of the gasifier wall and drops via the discharge opening into the slag collection bath. ... Such discs or panels can for instance be constructed from carbon steel, stainless steel, graphite and ...

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A Review of Circular Economy Prospects for Stainless ...

Jun 28, 2021· Abstract The world of stainless steel production was 52 Mt in 2019, and the annual amount of slags including electric furnace, AOD converter, ladle, and casting tundish, was estimated at 15–17 Mt. Nowadays, only a minor fraction of slags from stainless steel production is utilized and a major part goes to landfilling. These slags contain high-value elements (Cr, Ni, Mo, Ti, V…) as oxides ...

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MATERIALS TECHNOLOGY FOR COAL-CONVERSION …

Slag-Refractory Interface of a Fused-cast 99% Al203 Refractory (Number 2) Exposed to a Basic Coal. ... most coal-gasification processes will expose materials to a wide range of ... Type 304 stainless steel, Incoloy 800, RA310 stainless steel, and Stellite 6B using 100 …

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(PDF) Steel converter slag as an oxygen carrier for ...

Steel converter slag, also called LD slag, is a by-product from the steel industry which, besides iron, contains significant fractions of Ca, Mg, Al and Mn in a complex matrix of phases.

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Solidification of stainless steel slag by accelerated ...

As molten stainless steel slag containing dicalcium silicate (C2S) cools it can undergo several phase transitions. The final transformation from the beta-polymorph to gamma-C2S is accompanied by a volume change that causes the slag to self-pulverise or 'dust'. As a consequence of this the fine grained portion of the slag contains more of this ...

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(PDF) Stabilisation and Microstructural Modification of ...

Effect of accelerated carbonation on AOD stainless steel slag for its valorisation as a CO2-sequestering construction material. By Lucie Vandewalle, Özlem Cizer, and Yiannis Pontikes. Thermodynamic assessment and experimental validation of clinker formation from blast furnace slag …

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Press Release Details | The former Nippon Steel | Press ...

Jan 21, 2004· In 2002, Nippon Steel Corporation (President Akio Mimura) licensed its Direct Melting System (shaft furnace type gasification and melting furnace) technology to POSCO E&C Co. Ltd. (President Hak-Bong Ko), an engineering subsidiary of Pohang Iron & Steel …

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Corrosion in syngas coolers of entrained slagging ...

Aug 01, 1990· Laboratory studies were conducted to assess the effect of operating variations and raw materials on the corrosion of carbon and stainless steels used in syngas coolers of combined cycle coal gasification plants. Sulfidation was the main corrosion mechanism. Corrosion rates of austenitic stainless steels were low up to 500/sup 0/C.

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Slag Recycling Companies and Suppliers (Waste and ...

Ecofer - Slag Processing and Metal Recovery Plant. ECOFER slag processing and metal recovery plants are delivered fully assembled and ready to run – State of the art plants. Newest technology ECOFER slag processing plant enables most cost effective way to remove steel from slag with 300 ton/h ... REQUEST QUOTE

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Mughal Steel

Jan 30, 2015· Mughal Iron and Steel Industries Limited (MISIL) utilizes the renowned MCC-SERIES (one of the largest equipment manufacturers in China) for smelting process. Chorme One, Manganese One and Silica Manganese are used as raw materials to produce Ferro Chrome, Ferro Manganese, Ferro Silicomanganese and Ferro Silicon at Mughal Steel.

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(PDF) Dissolution of refractories for gasification process ...

Dissolution of refractories for gasification process of petroleum coke for the steel industry. ... isostatically pressed into a stainless steel mold by applying a load magnesium aluminate and the material 2 for electrofused alumina. ... Ambiente y Desarrollo materials in a steel ladle slag line. Scand J Metall 2002;31:241–5.

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Role of steel slags on biomass/carbon dioxide gasification ...

Jan 01, 2017· Herein the effect of steel slags on biomass gasification was systemically investigated for the purpose of waste heat recovery and disposal of steel slags and biomass resource. It was observed that an increasing iron content and slag basicity remarkably increased the CO yield at 600–1000 °C and 800–1000 °C, respectively while the ...

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Slag Grinder – Engineering & Design - KnightHawk Engineering

Slag Grinder – Engineering & Design. Crushers and Slag grinders are often applied in Materials Handling and Gasification plants to reduce the size of quenched slag from the gasifier's tap-hole or break clinkers from slow moving bed reactors. These clinkers are typically brittle and relatively easy to crush, but may be larger and very hard ...

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Solid Waste Gasification: Comparison of Single- and Multi ...

Mar 12, 2021· An updraft gasification reactor (left) and a schematic diagram of the reactor interior (right). The reactor consisted of a stainless-steel cylinder with a height of 59 cm and a diameter of 8.3 cm. Biomass was transported through a feeding cochlea at the top.

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Outdoor Wood Furnace | Pristine Gasification Series ...

GASIFICATION MANIFOLD. The Gasification Manifold is a uniquely designed, high temperature poured refractory unit, that injects preheated air directly at the combustion zone. This process drastically increases the burn efficiency, igniting all gases, causing the flame in the second combustion chamber to reach as high as 2,300°F. Our outdoor ...

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Main Causes of Porosity in Stainless Steel Castings

In the stainless steel casting process, pores often appear, which brings many troubles to the casting processing. ... get in the air, suck in the slag, and form the entrapment pores and slag holes. 03: Foam model gasification and decomposition generates a large amount of gas and residues that cannot be discharged in time. ... Poor deoxidation ...

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AIST - Digital Library

Evolution of Oxide Inclusions in 304 Stainless Steel Treated by Rare Earth During Isothermal Heating at 1,473 K (1,200°C) Experimental Investigation of Hydrochar Injection to the Blast Furnace. Experimental Research on Effect of Unburned Pulverized Coal on Coke Gasification Performance in Blast Furnace

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SLAG GRINDER – ENGINEERING & DESIGN | Engineer's Dialogue

Crushers and Slag grinders are often applied in Materials Handling and Gasification plants to reduce the size of quenched slag from the gasifier's tap-hole or break clinkers from slow moving bed reactors. ... A slag breaker dating from the 1970's required replacement. ... stainless steel and tungsten carbide weld overlay of internal ...

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(PDF) Alkali-Activated Stainless Steel Slag as a ...

Jul 14, 2021· The stainless steel slag (SSS) came from the company Acerinox Europa S. A.U., located in Los Barrios (Cádiz), Spain. The chemical and physical properties of …

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Gasification Power Plants | Deco Jones Group LLC

Deco Jones will design, fabricate, and supply each 50 ton/day; 5 off gasifier modules to achieve 250 ton/day RDF (combustible waste mixture produced from MSW) gasification system made of high grade stainless steel (SS310 and SS304) throughout the gasifier system and steel structure as described in the following section:

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Stainless Steel Fabrication - Anderson Dahlen

About Anderson Dahlen, Inc. By providing superior customer service and high quality equipment and stainless steel fabrication services we have built a reputation as one of the premier stainless steel and specialty alloy fabricators in the country. Our core business is providing custom contract-manufacturing services to a variety of industries including food, chemical, beverage, and ...

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Failure analysis of components from coal-gasification ...

@article{osti_7362113, title = {Failure analysis of components from coal-gasification pilot plant. [Corrosion failure of Inconel 702 thermocouple sheath and types 304 and 316 stainless steel instrument tubing]}, author = {Greenberg, S and Natesan, K}, abstractNote = {Construction materials in coal-gasification pilot plants are subjected to a variety of corrosive/erosive environments, ranging ...

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Patents Assigned to Sumitomo Metal Industries - Justia ...

Abstract: An alloy useful for manufacturing high strength deep well casing, tubing and drill pipes for use in oil-well operations is disclosed. The alloy exhibits ...

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An assessment on volume stabilization of mortar with ...

Nov 30, 2017· Type I Ordinary Portland cement (OPC) with the grade of 42.5, stainless steel slag, and natural sand were used in the experiment. The cement fully complies with ASTM C150.The stainless steel oxidizing slag (SSOS) used in this work is carried out in an electric arc furnace (EAF), collected from the China Lihua stainless steel plant (Taiwan) following the technique of sampling for aggregate ...

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laracterization: Viscosityof Coal Slag Steam

tableofcontents 1.0introduction 2 2.0apparatusandprocedure 2 2.1generalfeatures 2 2.2platinumheater 3 2.3viscositytorsionsuspension 4 2.4viscositymeasurement 4 3.0resultsanddiscussion 5 4.0summary 11 5.0references 11 figures 12

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4.7. Slag Utilization | netl.doe.gov

The principal barriers to gasification slag utilization can be classified into three main categories: 1) institutional, 2) regulatory, and 3) legal. The institutional barriers include restrictions on use of CUBs through requirements, standards, specifications, policies, procedures, or attitudes of organizations and agencies involved in CUB use ...

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Stainless Steel Structural Profiles for a Gasification ...

Nov 18, 2020· For such a unique project with such large stainless steel profiles, it was a pleasure to work with an experienced fabricator to get the job done. Stainless Structurals for Many Industries. Laser welded stainless steel profiles are common in a variety of industrial applications like the structural components of this gasification plant.

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Aspen Plus Model for Entrained Flow Coal Gasifier

The reaction kinetics for char gasification is considered. ... The slag and. 6 2 Process Description syngas leaving the top section of gasifier pass through a water-cooled dip ... strip of stainless steel screen. Then, electricity is used to heat the coal

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CN102367496A - Cooling method for stainless steel slag ...

The invention provides a cooling method for stainless steel slag. According to the invention, after tapping of stainless steel slag is completely finished, the stainless steel slag is poured into slag pots; a train is used to transport the slag pots loaded with the stainless steel slag to a slag yard, a pot holding car is used to transfer the slag pots filled with hot slag to a cooling zone ...

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Immobilization of Chromium in Stainless Steel Slag Using ...

Jan 24, 2020· Significant amounts of stainless steel slag that contain harmful chromium are generated during stainless steel production.[] For a long time, the massive amounts of stainless steel slag were land-filled or stored in slag yards as hazardous solid waste (waste category in China: HW21), which not only occupied a large amount of land but also polluted the natural environment.

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Preparation of Glass-ceramics Using Chromium-containing ...

Moreover, the continuous refinement of grains exhibited with the increase of amount of stainless steel slag. The results indicated that the excellent physical and mechanical properties, including density (2.9 g/cm 3 ), hardness (729.27HV0.3), bending strength (222.9 MPa), and the solid solution of Cr in excess of 0.00057% for the glass-ceramics ...

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309s Stainless Steel Flexible Pipe - Slag Handling, Ash ...

Our progress depends about the advanced products,fantastic talents and continuously strengthened technology forces for 309s Stainless Steel Flexible Pipe, Vent Plug, Slag Conveyor, Double Roller Crusher, We guaranteed high quality, if clients were not satisfied with the products' quality, you can return inside 7days with their original states.We pursue the administration tenet of "Quality is ...

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Downtime corrosion in syngas coolers of entrained slagging ...

The resistance of low alloy steel, stainless steels, and aluminum-rich coatings to attack by a high sulfur, medium Btu coal gasification atmosphere has been evaluated at 300 to 500/sup 0/C. Samples were heated in mixtures representative of the product gas from entrained slagging gasifiers in laboratory furnaces for 1500 to 3000 hr. Iron sulfide ...

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  • 24th March 2021