Get a Quote
Characterization of the products obtained by pyrolysis of

Characterization of the products obtained by pyrolysis of

Nov 01, 2019 Magnetic separation of steel slag. During the integration process of oil sludge pyrolysis with steel slag reduction, the yield of pyrolysis tar reached a maximum of 10.63% at 550 C. So, the magnetic separation of steel slag was investigated at 550 C. As is well known, steel slag had a poor reduction effect at low temperatures.

Get Price
US7329329B2 Apparatus for pyrolyzing tire shreds and

US7329329B2 Apparatus for pyrolyzing tire shreds and

Tire pyrolysis systems and processes are provided which include feeding tire shreds to a pyrolysis reactor, pyrolyzing the shreds in a pyrolysis reactor to produce a hydrocarbon-containing gas stream and carbon-containing solid, removing the carbon-containing solid from the reactor, directing the hydrocarbon-containing gas stream into a separator, contacting the hydrocarbon-containing gas ...

Get Price
Petrography of coal combustion char A review ScienceDirect

Petrography of coal combustion char A review ScienceDirect

Oct 01, 2020 Fly ash physical separation methods (density, magnetic ... and Bend et al. prepared pyrolysis coal chars from different rank vitrinite in an entrained flow reactor at 1273 K with an ... is used to designate glassy hollow spheres, and all amorphous, opaque, and angular morphotypes were considered as ‘coal or iron oxides.’ ...

Get Price
Recovery of rare earth elements from coal fly ash by

Recovery of rare earth elements from coal fly ash by

Jun 01, 2020 Coal fly ash (CFA) is one of the most promising secondary sources of rare earth elements and yttrium (REY). This research first studied the modes of occurrence of REY in CFA collected from a China’s power generation plant which utilizes a coal feedstock with an elevated REY content.

Get Price
A comprehensive review on the applications of coal fly ash

A comprehensive review on the applications of coal fly ash

Feb 01, 2015 Coal fly ash is one of the most complex of the materials that can be characterized. Approximately 316 individual minerals and 188 mineral groups have been identified in various ash samples (Vassilev and Vassileva, 1997, Vassilev et al., 2003, Vassilev and Vassileva, 2005).The major components are metallic oxides with varying contents of unburnt carbon as measured by a loss on …

Get Price
PDF Analysis on Characteristics of Fly Ash from Coal

PDF Analysis on Characteristics of Fly Ash from Coal

Coal and fly ash chemical composition were analyzed using proximate analysis and ICP-MS. Based on the characterization of cenospheres and fly ash chemical components, we correlate the ...

Get Price
PDF Fine coal dry classification and separation

PDF Fine coal dry classification and separation

ash content of 0-0.5mm coal in feed. The ash content of fine coal is lower than 11.00%, which can meet the. ash content requirement of clean coal. If necessary, the pneu matic classification fine ...

Get Price
Method for oxidation of pyrite in coal to magnetite and

Method for oxidation of pyrite in coal to magnetite and

OSTI.GOV Patent: Method for oxidation of pyrite in coal to magnetite and low field magnetic separation Title: Method for oxidation of pyrite in coal to magnetite and low field magnetic separation Full Record

Get Price
Mercury removal from flue gases by novel regenerable

Mercury removal from flue gases by novel regenerable

May 01, 2009 The magnetic sorbent was readily separated from fly ash by magnetic separation, leaving the fly ash essentially free of sorbent contamination. In initial in-plant tests, the sorbents were able to capture mercury from the flue gases of an operational, full-scale, coal-fired power plant.

Get Price
US4586660A Process for separating anthracite coal from

US4586660A Process for separating anthracite coal from

A process for treatment of anthracite coal when combined with cinders and/or klinker type ash produced by old cleaning plant boilers comprising sizing of the mixture and magnetic separation of the ash from the mixture thereby improving the combustion value. Use for treatment in existing anthracite and cinder waste piles is disclosed.

Get Price
Capture of elemental mercury from flue gas over a magnetic

Capture of elemental mercury from flue gas over a magnetic

By pyrolysis process, ferrous sulfate and its hydrolysate in the sludge is likely to be transformed into ferrous sulfide and iron oxide that is beneficial for mercury removal , . The presence of iron oxide might give the sorbent magnetic property, and thus the sorbent can be easily separated from the fly ash mixture by magnetic separation.

Get Price
Explore Research Publications Energy @ SIU SIU

Explore Research Publications Energy @ SIU SIU

Bagheri, Amin. STUDYING THE MAGNETIC SEPARATION OF OXYGEN CARRIER IN COAL DIRECT CHEMICAL LOOPING. (2014). Jabbary, Farzin. Comparison of nickel and iron-based oxygen carriers supported on alumina in syngas-fueled chemical looping combustion. Diss. SOUTHERN ILLINOIS UNIVERSITY AT CARBONDALE, 2014. Walters, Evan Robert.

Get Price
Characterization of semi coke generated by coal based

Characterization of semi coke generated by coal based

Aug 06, 2015 Solid wastes derived from metallurgical industries pose a significant threat to environment. The utilization and disposal of these solid wastes are the major concern in the world. Semi-coke generated in coal-based direct reduction process of iron ore is a by-product and its suitable utilization is not available so far. In order to handle it properly, the characteristics of this by-product …

Get Price
PAHs emission from the pyrolysis of Western Chinese coal

PAHs emission from the pyrolysis of Western Chinese coal

The iron concentrate grade was 52.97% with hematite added in coal when the residence time of ultimate pyrolysis temperature was 25 min and the magnetic field strength was 96.48 kA/m, while it was ...

Get Price
Zero waste recycling method for textile dyeing sludge by

Zero waste recycling method for textile dyeing sludge by

Jun 17, 2020 We developed an environmental recycling process for textile dyeing sludge that involved a magnetizing roasting–magnetic separation process followed by the preparation of a ceramic filter. The optimal parameters for the magnetizing roasting process included blending the textile dyeing sludge with 5.0% content of coal and roasting at 800 C for 45 min. The main iron-bearing mineral (Fe2O3 ...

Get Price
Magnetic And Sifting Patents and Patent Applications

Magnetic And Sifting Patents and Patent Applications

Nov 19, 2018 Abstract: A vertical ring magnetic separator for de-ironing of coal ash comprises a rotating ring (101), an inductive medium (102), an upper iron yoke (103), a lower iron yoke (104), a magnetic exciting coil (105), a feeding opening (106), a tailing bucket (107) and a water washing device (109). The feeding opening (106) is used for feeding the ...

Get Price
Low Temperature Pyrolysis Characteristics of Oil Sludge

Low Temperature Pyrolysis Characteristics of Oil Sludge

Mar 06, 2007 Pyrolysis of oil sludge first by thermogravimetry/mass spectroscopy (TG/MS) and then in a horizontal quartz reactor with an electrical laboratory furnace under different pyrolysis conditions was carried out. The influence of heating rate from 5 to 20 C min-1, final pyrolysis temperature from 400 to 700 C, various interval holding stage, and catalyst on the products were investigated in ...

Get Price
Study on In Situ Catalytic Cracking of Coal Tar by Plasma

Study on In Situ Catalytic Cracking of Coal Tar by Plasma

Jul 14, 2021 Nitrogen oxides (NOx) are the main pollutants of air, which mainly come from the combustion of coal and fossil fuels. In this paper, with fly ash …

Get Price
Environmental Assessment of Waste to Energy Processes

Environmental Assessment of Waste to Energy Processes

The bottom ash accumulation rate averaged 67.98 kg/min for coal and RDF (at 5% to 10% RDF) in contrast to 10.07 kg/min for Orient 6 coal.2 Also, elements such as lead, antimony, and tin are present in greater concentrations in fly ash collected by the ESP when coal and RDF are fired together than when coal alone is used.

Get Price
Capture of Gas Phase Arsenic by Ferrospheres Separated

Capture of Gas Phase Arsenic by Ferrospheres Separated

Coal combustion may release toxic arsenic into the environment, which seriously threatens human health and ecological safety. Fly ash shows its potentials as an arsenic sorbent in its low cost and no adverse impacts on reutilization but limits in its adsorption capacity for arsenic. On the basis of the iron component in fly ash possessing an obvious effect on arsenic removal, this study tries ...

Get Price
Municipal Solid Waste as Source of Energy An Overview

Municipal Solid Waste as Source of Energy An Overview

Magnetic separation ... solid waste is being considered for co-firing with coal or for firing alone in a boiler designed originally for firing coal. Fly ash which is produced as by-product in the process is commonly used as an additive for brick manufacturing. ... (mainly iron) can be recovered from the bottom ash and up to 90% of the remainder ...

Get Price
US4652433A Method for the recovery of minerals and

US4652433A Method for the recovery of minerals and

The method of the present invention is a novel comprehensive process for maximizing the recovery of valuable mineral values from coal ash. Options may also be included for the production of saleable inorganic chemical by-products. The process employs both physical and chemical extraction techniques that maximize the yield of products while reducing the quantity of waste produced.

Get Price
Adsorption of metribuzin from aqueous solution using

Adsorption of metribuzin from aqueous solution using

Dec 12, 2016 Switchgrass biochar (SGB) was made by fast pyrolysis in an auger-fed reactor at 425 C with a solid residence time of 60 s in the pyrolysis zone during bio-oil production. Magnetic switchgrass biochar (MSGB) was prepared by iron oxide precipitation onto the biochar surface using an aqueous Fe3+/Fe2+ solution followed by NaOH treatment. Both the SGB and the MSGB were characterized by …

Get Price
US6290066B1 Method for removal of ammonia from fly ash

US6290066B1 Method for removal of ammonia from fly ash

A method for removing ammonia and ammonia compounds from fly ash and other combustion by-products is provided. The method may be performed with raw or processed fly ash, or it may be performed in conjunction with a wet beneficiation process. The method involves mixing the ammonia-contaminated fly ash with water and then filtering and/or drying the solution to remove the ammonia …

Get Price
WO2013057471A1 Benefication of fly ash Google Patents

WO2013057471A1 Benefication of fly ash Google Patents

Particulate materials for use as fillers/extenders in plastics manufacturing are formed by beneficiating fly ash collected at a coal-fired power station. The beneficiation process includes the removal of extraneous surface deposits from surfaces of the particulate material. The process comprises the steps of: forming a slurry (30) of the fly ash; water-leaching (32) to remove water-soluble ...

Get Price
Upgrading coal and other carbonaceous fuels using a lean

Upgrading coal and other carbonaceous fuels using a lean

Oder, R., Dry magnetic Separation of Ash, Sulfur, and Mercury From a Southwestern Wyoming Coal, presented at the 18th International Low Rank Fuels Symposium, Jun. 24-26, 2003, Billings, Mt, pp. 1-6. The International Search Report and the Written Opinion, PCT/US2010/041918, dated Feb. 24, 2011.

Get Price
Removal of elemental mercury from flue gas using the

Removal of elemental mercury from flue gas using the

May 25, 2020 The sewage sludge flocculated with ferrous sulfate (SFS) was prepared by one-step pyrolysis to obtain magnetic Fe-containing carbon. Results showed that only a small amount of FexOy as well as extremely weak magnetism were observed at pyrolysis temperatures of less than 500 C. SFS tended to exhibit intensive agglomeration, leading to the drastic increase of the crystalline-phase …

Get Price
Study on Electrostatic Preparation High Ash Coal from

Study on Electrostatic Preparation High Ash Coal from

The dry roll-type electrostatic coal beneficiation technology under high voltage is used to study the beneficiation of low-grade and high-ash coal in Inner Mongolia, northern China. The optimal coal beneficiation conditions are determined by adjusting three parameters: the electrode voltage, the distance between the electrode and the drum, and the angle θ of the electrode.

Get Price
Municipal Solid Waste Sorting Machine MSW Sorting Plant

Municipal Solid Waste Sorting Machine MSW Sorting Plant

Functions of Municipal Solid Waste Sorting Equipment. 1. Bag-Breaking Machine: This is a key part of the MSW sorting plant. It exists with the aim of breaking any Nylon packing bags and plastic bags in the municipal mixed waste. So the waste in the plastic bags can also be included in …

Get Price
Crystals Free Full Text Recent Advances in Methods for

Crystals Free Full Text Recent Advances in Methods for

Coal fly ash (CFA) is a complex material produced from the combustion of pulverized coal in thermal power plants during the production of electricity [].Due to its complexity, until now, nearly 316 minerals were found individually while 188 minerals were present in groups identified in various coal fly ash samples from different parts of the world [2,3].

Get Price
Popular Tags
Related News
  1. small scale mining equipment for sale
  2. ball mills in uganda
  3. gemstone mining machinery pdf
  4. gold mining equipment traders
  5. crusher model schneider feb
  6. v belt for impact crusher hs code
  7. drying cement performance
  8. south africa screens and mining mills