Feasibility of using ultrasound-assisted process for ...

Feasibility of using ultrasound-assisted process for sulfur and ash removal from coal Article in Chemical Engineering and Processing 50,(3):236–246 · March 2011 with 29 Reads DOI: 10.1016/j.cep ...

Contact Supplier

Sulfer Removal Process From Coal Briquette - ruminenten.nl

Removal Sulfur Ash Coal Processing - scbm.eu. sulfer removal process from coal briquette. Sulfur Removal Process From Coal Briquette Mining. removal sulfur and ash at coal SBM provide the removal sulfur ash coal processing solution case for you.

Contact Supplier

Process for removing sulfur from coal (Patent) | DOepatents

1983-08-11· A process for the removal of divalent organic and inorganic sulfur compounds from coal and other carbonaceous material. A slurry of pulverized carbonaceous material is contacted with an electrophilic oxidant which selectively oxidizes the divalent organic and inorganic compounds to trivalent and tetravalent compounds.

Contact Supplier

US4272250A - Process for removal of sulfur and ash from ...

A process for reducing the sulfur and ash content of coal particles wherein coal particles are treated in an aqueous slurry with a minor amount of hydrocarbon oil to form coal-oil aggregates having modified particle size and density characteristics.

Contact Supplier

Desulfurization of Coal - Encyclopedia of Life Support Systems

Coal Cleaning for Sulfur Removal The coal cleaning process has traditionally focused on reducing ash-reforming minerals and not necessarily aimed at removing sulfur in coal until recently. However, increasingly stringent regulations for SOx emissions during coal combustion have encouraged technical development of coal cleaning for sulfur removal. Physical cleaning techniques to remove ...

Contact Supplier

Pilot-scale Studies of Ash and Sulfur Removal from Fine ...

CYCLOJET CELL FOR ASH AND SULFUR REMOVAL 1973 authors’ century are designed in such a way as to create a centrifugal field. This is because centrifugal forces employed in the flotation can readily remove ash from the coal owing to the

Contact Supplier

Process for removal of sulfur and ash from coal (Patent ...

A process for reducing the sulfur and ash content of coal wherein coal particles are treated with a conditioning agent in an aqueous slurry prior to agglomeration with a minor amount of hydrocarbon oil. After separation of the coal-oil agglomerate from ash and mineral matter remaining in the aqueous

Contact Supplier

removal sulfur ash coal processing - csdpmap.eu

The present invention is directed to an improved method of chemically treating coal to remove sulfur and ash. ... A process for removing ash and sulfur from coal ...

Contact Supplier

An On-Site Process for Removing Moisture from Low-Rank ...

The reduced heating value is caused by increased moisture and ash in the coal. At Coal Creek, the plant design fuel had a moisture content of about 36.6 percent and an ash content of 6.2 percent ...

Contact Supplier

Feasibility of using ultrasound-assisted process for ...

Feasibility of using ultrasound-assisted process for sulfur and ash removal from coal. ... Many researchers have tried to find an economically practical process for removing sulfur from coal, but no such process has been developed yet . 1.2. Forms of sulfur in coal. The chemistry of sulfur is so complex that it greatly complicates the removal of sulfur from coal. Sulfur is found in two forms ...

Contact Supplier

New technology removes sulfur from coal - scholar.lib.vt.edu

A coal-cleaning technology developed by ia Tech in the early 1980s has generated new technologies and patents, including a process for doubling the amount of sulfur removed from coal compared to techniques currently used.

Contact Supplier

Flue-gas desulfurization - Wikipedia

Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO 2) from exhaust flue gases of fossil-fuel power plants, and from the emissions of other sulfur oxide emitting processes (e.g trash incineration)

Contact Supplier

Process for removing sulfur from coal - patents.com

Process for removing sulfur from coal Abstract. A process for reducing the sulfur content of coal comprising the steps of: (1) contacting coal particles with (i) a silicate selected from the group consisting of alkali metal silicates, alkaline earth metal silicates and mixtures thereof, and (ii) a promoter material capable of oxidizing or ...

Contact Supplier

CHEMICAL REMOVAL OF PYRITIC SULFUR FROM COAL

The Meyers Process for the chemical removal of pyritic sulfur from coal is a TRW proprietary process (1) which is currently in a bench scale develop- ment phase under the sponsorship of the Demonstration Projects Branch of the

Contact Supplier

How to Remove Sulphur from Coal - 911metallurgist.com

The process effectively removed over 95 percent of the pyritic sulfur in the coal. Reclamation of pyritic sulfur would eliminate stream pollution by acid water drainage and other environmental problems.

Contact Supplier

process for removing sulfur and ash from coal - eduvijf.nl

Patent CA1146894A - Process for removal of sulfur and ash ... PROCESS FOR REMOVAL OF SULFUR AND ASH FROM COAL ABSTRACT OF THE DISCLOSURE A process for reducing the sulfur and ash content of coal particles wherein coal particles are treated in an aqueous slurry with a minor amount of hydrocarbon oil to form coal-oil aggregates having modified ...

Contact Supplier

Process for removing sulfur and ash from coal - GREENWALD ...

1985-08-27· A process is disclosed for removing sulfur and ash, particularly clay and pyrite from coal particles having a mesh size of 30 or less. A slurry of coal particles is agitated in an ultrasonic mixer to separate the contaminants from the coal and weaken chemically-bonded contaminants on the coal …

Contact Supplier

Process for removing sulfur from coal - patents.com

Process for removing sulfur from coal Abstract. A process for the removal of divalent organic and inorganic sulfur compounds from coal and other carbonaceous material. A slurry of pulverized carbonaceous material is contacted with an electrophilic oxidant which selectively oxidizes the divalent organic and inorganic compounds to trivalent and tetravalent compounds. The carbonaceous material …

Contact Supplier

Removal of sulfur and ash from coal using molten caustic ...

Molten caustic leaching process is effective in reducing significant amount of ash derived from minerals, pyritic sulfur, and organic sulfur from coal. The effect of leaching coal samples from Hazro fields, situated in Southeast Anatolia region of Turkey with molten sodium hydroxide as well as followed by mild acid on demineralization and desulfurization was investigated. The effects of alkali ...

Contact Supplier

Process for removal of sulfur and ash from coal - Atlantic ...

1981-03-10· A process for reducing the sulfur and ash content of coal comprising: treating coal particles in a hydrocarbon oil slurry with minor amounts of …

Contact Supplier

US4537599A - Process for removing sulfur and ash from coal ...

A process is disclosed for removing sulfur and ash, particularly clay and pyrite from coal particles having a mesh size of 30 or less. A slurry of coal particles is agitated in an ultrasonic mixer to separate the contaminants from the coal and weaken chemically-bonded contaminants on the coal surface.

Contact Supplier

Process for removing sulfur from coal - patents.com

Process for removing sulfur from coal Abstract. A process for reducing the sulfur content of coal comprising: (1) contacting an aqueous slurry of coal-oil agglomerates at elevated temperature with oxygen; and (2) recovering coal-oil agglomerates wherein the coal has reduced sulfur content.

Contact Supplier

process for removing sulfur and ash from coal - cict.co.in

Removal of Sulfur and Ash from Coal Using Molten. Molten caustic leaching process is effective in reducing significant amount of ash derived from minerals, pyritic sulfur, and organic sulfur from coal.

Contact Supplier