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High-sulfur coal desulfurization and market application


 
 

Definition of high-sulfur coal

High sulfur coal refers to the coal with sulfur content higher than 3% Low sulfur coal refers to the coal with sulfur content less than 1%

 
 

 

The hazards of high sulfur coal
 

The sulfur within the high sulfur coal will oxidize to sulfur dioxide after combustion,which is a main pollutant source of air pollution and cause acid rain, thus a desulfurization process must be carried out before any usage。In addition, the he high sulfur coal contain a high level of sulfide and it can be decompose and volatile a great amount of hydrogen sulfide during usage, the hydrogen sulfide pose a great danger to the environment therefore a treatment process is very necessary



Introduction of desulfurization technology of high sulfur coal



Electro-catalytic water technology

 

The Electro-catalytic water is produce by the SEEF technology. Certain modification of the equipment can allow us to control the equipment to produce different kind of Electro-catalytic water, such as alkaline, acidic and neutral electro-catalytic water. In the mean time, the equipment will enrich the water with a vast amount of free radicals and adjust the PH value and EH value to fit our need.

The application of electro-catalytic water:


  A:Neutral electro-catalytic water: mainly use in the treatment of TVOC contaminated soil, oil contaminated soil and chemical pesticides contaminated soil.


  B:Acidic/Alkaline electro-catalytic water:。Mainly use in the treatment of heavy metal contaminated soil, it can change the Redox potential of the soil and converting the heavy metal to non-toxic and harmless salts or other steady state substances. According to different situation, the equipment can be adjusted to fulfils our need


  C:Acidic/Alkaline electro-catalytic water: Can efficiently decompose the pollutants of all kinds of oil contaminated soil



The SEEF technology


When the SEEF Tunnel-type purification module decomposing the waste gas, The high-energy electrons in the system plays a decisive role, An inelastic collision occurs between the High energy electrons and gas molecules, which convert the energy to The internal energy of the ground state molecule (atom), then the gas will be activated by a series of processes such as excitation, dissociation and ionization.

When the electron energy is low , activated free radicals are produced. Activated pollutant molecules will be removes by the Non-plasma directional chain chemical reaction. When the average energy of the electron exceeds the molecular bonding energy of the pollutants, the molecular chain will break and the pollutant will be break down.

 

 

 

Introduction of degradation tower


degradation tower is a new technology to process waste gas ,it is a combination of the ability of traditional scrubber to absorb all kinds of organic waste gas and our dynamic electric-catalytic water's ability to process the dissolved waste gas in water, which will oxidized and reduced The dissolved waste gas in water and produces a large number of active free radicals to improve the dissolution rate of the waste gas and Catalytic decomposition without the need to use other auxiliaries to improve the dissolution rate of exhaust gases.

 

 
Introduction of degradation tower 明                              Degradation tower equipment      

 

The reuse of high-sulfur coal


High-sulfur coal desulfurization process
 

Process description:


  A:Electro-catalytic water to Redox:

  Use electro-catalytic water equipment to adjust the PH value and REDOX potential of water, to produce Acidic electro-catalysis water with PH value about 1 ~ 2.the Acidic electro-catalysis water will conduct REDOX will the high sulfur coal and turn it into Low sulfur coal and hydrogen sulfide


  B:SEEF module to decompose:

  in order to remove the hydrogen sulfate created in the last process, we use the method of creating An inelastic collision between the High energy electrons and gas molecules, which convert the energy to The internal energy of the ground state molecule (atom), then the gas will be activated by a series of processes such as excitation, dissociation and ionization and eventually completely decompose the pollutants.

 

Market outlook and application of the technology

 

Distribution of coal resources in China:


A:Domestic distribution of coal resources

  China has the second largest coal resources in the world, but its per capita resources and mine reserves are nowhere near the world average.


B:Shortage of low sulfur and high development cost:

  In China's coal resources, low sulfur coal with sulfur content less than 0.5% is very few. And mainly distributed in northeast of Heilongjiang, Jilin, Inner Mongolia and some remote provinces and regions of northwest China. There is not much of it, and it is also expensive to transport long distances by rail;


C: Urgent need of a good technology:

  There are abundant of high sulfur coal resources China, but it has caused a serious pollution and acid rain. Which suggest there are urgent needs of a good suitable and cheap technology to develop the high-sulfur coal.


Superiority of the technology:


  In the traditional way of using high sulfur coal ,we mainly focus on cleaning the by-products , such as sulfur oxide and nitrogen oxides. Normally desulfurization process like flue gas desulfurization and combustion can reach 80%-90% of desulfurization rate.

  If you burn a high sulfur coal with sulfur content of 3% ~ 4%, and use the above method to achieve the 90% desulfurization rate. The SO2 emissions are just the same as mining and burning the low sulfur coal with sulfur content of 0.3 %-0.4%. Even at 80% of desulfurization rate, The SO2 emissions will still be equivalent to mining and burning of a low sulfur coal with sulfur content of 0.6 %-0.8%.

  by conducting desulfurization process before using the high sulfur coal, we can remove 90% of sulfur and the product can be directly use as energy source or any other usage without causing any secondary pollution.