Wednesday, June 9, 2021

Entrained Flow Coal Gasifiers by CASE

CASE, a leading and certified Coal Gasifier Manufacturer offers gasifiers of various types. The state-of-the-art gasifiers are used for different applications. The newly introduced Entrained Flow Gasifiers are Fourth-Generation Coal Gasifiers where the technology is better than Circulating Bed Coal Gasifiers. In this technology, High Ash Coal can be used of size less than 100 microns.

The Gas is filtered and used by the user. The pressure of gas coming out of the gasifier can be plus 80 KPA. In this technology 100% Oxygen can be used instead of air as gasifying agent by which calorific value of plus 2400Kcal/Nm3 can be achieved in the gas. This is a boon where the thermal process requires higher Calorimetric temperatures. 

These gasifiers are down draft in contrast to all the above three cousins. In these gasifiers the temperature is maintained over Ash fusion temperature of coal used. The majority ash comes out in liquid form from the bottom.

To get a better understanding of Entrained Flow Gasification Technology, kindly write to our gasifier technologist at info@casepl.com

CASE Coal Gasifiers: Types and Usages

The technology of Coal Gasification is to combust the Coal in a controlled oxygen environment. The resultant is the generation of Coal Gas whose primary constituent is CO instead of CO2. Coal gas is used extensively to replace high value fuels for thermal applications. This Gas can also be used to make fertilizers and Chemicals. The gasifiers listed below are primarily used for thermal applications.

Coal Gas Contains Following Gases

CO

H2

CH4

N2

CO2

Depending on the type of gasifier, the percentage of these Gases Changes. So does the Calorific values.

 Checklist for Gasifier Model and Technology Selection:

CASE Coal Gasifier are of various types. Different types of Gasifiers are used for different Applications depending on the following:

Type of Application:

  • ·       Gasifier Automation Required:
  • ·       Quantity of Gas Required:
  • ·       Gas Calorific Value Desired:
  • ·       Pressure at Burner Point Desired:
  • ·       Distance of user point from the Gasifier:
  • ·       Burner level Automation:
  • ·       Quality of Coal:
  • ·       Granularity of Coal:
  • ·       Economic Constraints:

On the basis of the above information provided by the user, the gasification technologist at CASE selects the optimum technology and type of gasifier suitable to meet the users’ demand.

CASE Hot Gasifier:

This is the Basic type of Gasifier. This Gasifier Converts Coal into coal gas and the Gas output temperature is over 450° C and the pressure is about 150mmWC.

The gas composition is as follows. CO 20-25%, H2 15-18%, CH4 2-4%, N2 45-50%. The VM in the coal stays in gaseous form which burns with the gas at the user point. These gasifiers need to be close to the user point. Here Burner level automation is not possible; However, Gasifier operations can be fully automatic. The calorific value of gas without Considering VM is 1250Kcal/Nm3. Considering TAR caloric value being part of Coal Gas in gaseous form, the overall calorific value of the gas can be over and above 1800Kcal/Nm3.

The positive of this technology is low capex and Opex. There is no Tar or Phenol water generated in this technology. The technology is a hot favorite of Steel Rolling mills, Galvanizing Plants, Annealing lines etc.

The cons for this technology are that burner level automation is not possible and these gasifiers need to be installed very close to the user point.

This technology requires Lump coal of size 15mm – 50mm. These gasifiers can be designed for a wide range of coals varying from high grade Anthracite coals to low grade bituminous coals having high ash coal. The Coal quantity required per NM3 of Coal Gas generated depends on the Quality of coal.

 CASE Cold Pyrolysis Gasifier:

These Gasifiers are one generation above Hot Gasifiers. In this technology, Gasifier gas can be scrubbed of the TAR and Clean cold Gas can be boosted to any pressure as per user’s requirements. The phenol water is 100% recirculated back into the system. The Gas composition is almost same as in Hot Gasifier except high CH4 (4-6%) which results in Calorific value to be over 1400 Kcal/Nm3.

These Gasifiers are fully automatic and are preferably used where burner level Automation is desired like in Automatic Steel Furnaces, Pellet Plants, Glass Plants, Aluminum Calciners etc.

The Negatives of this technology is that if the Gas required is over 35000Nm3/hr, Battery of gasifiers are required resulting in increasing costs on man power and Opex.

Just like hot gasifiers, the gas quantity generated in these gasifiers are similarly dependent on the quality of coal used for gasification. Likewise, coal used in these gasifiers is also of wide variety varying from low ash like “Anthracite” or high ash like “Indian F Grade coal”.

Circulating Fluidized Bed Gasifiers:

These Gasifiers are the third-generation gasifiers where coal fines of 0mm-10mm size can be used for gasification. These Gasifiers have Fluidized Bed where Coal fines, Steam and Air are pumped from the bottom to the top. The gas comes out from the top which needs to be filtered and can be compressed to any pressure depending on the user requirements. In this  technology there is no generation of Tar or Phenols.



The calorific value of gas is about 1300Kcal/Nm3 and can be increased to about 1800Kcal/Nm3 by adding oxygen in the air which is used as gasifying agent.

These gasifiers involve a higher capex but they are low in opex as compared to the other two variants explained above.

The coal used in these gasifiers can be fines below size of 10mm but the ash content needs to be less than 25%. This technology is well established now and many installations are available to vouch for the technology. This technology can generate 60000Nm3/Hr gas in single cell. This is a boon where gas requirement is in high quantities.

 CASE Entrained Flow Coal Gasifiers:

These gasifiers are Fourth-Generation Coal Gasifiers where the technology is better than Circulating bed coal gasifiers. In this technology, High ash coal can be used of size less than 100 microns.


The Gas is filtered and used by the user. The pressure of gas coming out of the gasifier can be plus 80 KPA. In this technology 100% Oxygen can be used instead of air as gasifying agent by which calorific value of plus 2400Kcal/Nm
3 can be achieved in the gas. This is a boon where the thermal process requires higher Calorimetric temperatures.

These gasifiers are down draft in contrast to all the above three cousins. In these gasifiers the temperature is maintained over Ash fusion temperature of coal used. The majority ash comes out in liquid form from the bottom.

Corporate Office:

117, Charmwood Plaza, CharmwoodVillage, Surajkund, Faridabad, Haryana - 121009, INDIA.

Tel.: +91-129-4266666

Telefax: +91-129-4266699

Email : info@casepl.com, case@casepl.com

Website: https://www.casepl.com

 

 

 

Friday, May 21, 2021

Entrained Flow Gasification Technology by CASE

The much-awaited gasification technology is finally in your town. Yes, CASE has introduced "ENTRAINED FLOW GASIFIER", the most advanced technology available in coal gasification market, today. These coal gasifiers are designed to gasify low grade Indian Coals readily available in abundance at extremely cheap rates thus making the project dynamics much viable and cost effective for the end user. 



Coal fines are converted to coal gas having high calorific values >2400kcal/nm3 with negligible nitrogen thus reducing the NOx levels. Coal gas is the cheapest form of reliable energy which can be utilized for any thermal application within the Industrial process. With coal gas industries are able to substitute the use of high costs industrial fuels like HFO, LDO, LNG, Propane, Diesel, Natural Gas etc. 

Contact CASE Group to explore the possibility of using Coal Gas for your industrial use.

Send your requirement at info@casepl.com or make a call at 91-129-4266666



Monday, April 19, 2021

Pyrolysis Ultra Clean Gasifier Technology by CASE

When it comes to the world of engineering, CASE Group in India has so much in store for industries globally. Its been more than 25 years now that CASE is serving the various sector of industry with its state-of-art gasification technologies. As of now, the company brings Pyrolysis Ultra Clean Gasifier Technology. The technology is environment-friendly and efficient for a number of industrial applications.

Advantages of CASE Pyrolysis Ultra Clean Gas Station

  • Single Gas Outlet. Gas Composition Does Not Fluctuate- Consistent Gas.
  • All Purifying Equipment Are in Series- Low On CAPEX.
  • Less Purifying Equipment With Simple Schematics Low On OPEX.
  • Higher Purity of Gas as All Purifying Equipment Are in Series.
  • Higher Gas Thermal Value.
  • Usage of Gas Sensible Heat to Preheat the Incoming Coal.

To know more, you may visit our Pyrolysis Gasifier webpage

About CASE Group

CASE is a 30 years old engineering company with a well-established set up in India. CASE deals in FRP Rectangular Cooling Towers, FRP Multicell Cooling Towers, FRP Intelligent Cooling Towers which came in variable color options, Hot Gas Coal Gasifier, Pyrolysis Clean Gas Coal Gasifiers, Circulating Fluidized Bed Coal Gasifiers, Pulse jet Air Pollution Control Equipment Bag House, Non-Chemical Online Scale-Preventor (Scale-Ban), High speed steel rolls (HSS Rolls), Block Mills and Coal Briquetting machines etc. and many more.


Tuesday, March 30, 2021

Pyrolysis Clean Gas Technology: A brief note

Pyrolysis technology in the field of gasification is something new to learn. Google says that pyrolysis is the chemical decomposition of carbon-based materials through the application of heat. It must be noted that CASE Group in India has already introduced Pyrolysis Clean Gas Technology in India. And currently, the engineering firm is busy with some of its ongoing projects. Being highly on demand in glass industry, ceramics, chemical plants, steel to name a few, the CASE is offering state-of-the art pyrolysis technology in three variants, as per user requirement.

Pyrolysis Clean Gas Technology has huge advantages over any other variants of Gasification technologies available in the world today. Engineers at CASE have clearly explained the difference between the three variants.

  • In case of Pyrolysis Hot Clean Gas Station Indirect Cooler is not used and gas is available at 150 ℃ .
  • In case of Pyrolysis Clean Cold Gas Station Indirect Cooler is installed after the Electrostatic Precipitator bringing down the temperature of gas upto 40 ℃
  • In case of Very Clean Cold Gas Station additional ESP is installed after the Indirect Cooler to further reduce tar and dust level below 25ppm. 

For more information, talk to our Pyrolysis Gasifier Manufacturers at CASE Group


Saturday, March 20, 2021

CASE Gasifier Technology for Steel Industry

It is known to all that coal usage has become widespread among manufacturing industries worldwide. The availability of coal reserves is much higher as compared to oil and gas reserves, which is the major reason behind the increasing use of coal gasification technology.

According to engineers at CASE Group, some major benefits of choosing Hot Coal Gasifier are:

  • Volatile Matter is Physically Changed to Gaseous Form and becomes part of the Gas and burns in Combustion Zone.
  • High Temperature of Exit Gas (500 deg C).
  • No Tar Generation.


  • No Water Condensate- Zero Liquid Discharge Technology.
  • Low Coal Consumption.
  • Tested Re-Heating of Blooms Up To 385mmx285mm Successfully.
  • Heats Stainless Steel and All Grades Of Alloys Steels.
  • 100% Replacement of Alternate Fuel (Furnace Oil/Gas).
  • Negligible Un-Burnt Carbon in Ash.
  • Less Space Requirement.
  • Negligible Coal Consumption During Banking Stage.
  • Gas Generation Within 10 Minutes After hot Start Up.

Saturday, March 13, 2021

Pyrolysis Gasifier Technology Advantages 2021

CASE Group understands coal as an excellent material to compete against other fuels more effectively. Therefore, the company offers state-of-art gasification technologies which are more environment-friendly and efficient for a number of industrial applications.

CASE Group in India has come up with PYROLYSIS TECHNOLOGY IS AVAILABLE IN THREE VARIANTS

1) Pyrolysis Hot Clean Gas Layout

2) Pyrolysis Clean Cold Gas Layout

3) Pyrolysis Very Clean Cold Gas Layout

Major Advantages of Pyrolysis Gasifier by CASE

1) All types of coals can be used.

2) Coal is carbonized at low temperature in pyrolysis section and tar thus produced is of low viscosity with high fluidity.

3) Fully automatic PLC controlled system adds to ease of Operation and lower OPEX.

4) Its a Zero Liquid Discharge Technology

For more info, contact our Pyrolysis Gasifier Supplier

About CASE Group

CASE is a 30 years old engineering company with a well-established set up in India. CASE deals in FRP Rectangular Cooling Towers, FRP Multicell Cooling Towers, FRP Intelligent Cooling Towers which came in variable color options, Hot Gas Coal Gasifier, Pyrolysis Clean Gas Coal Gasifiers, Circulating Fluidized Bed Coal Gasifiers, Pulse jet Air Pollution Control Equipment Bag House, Non-Chemical Online Scale-Preventor (Scale-Ban), High speed steel rolls (HSS Rolls), Block Mills and Coal Briquetting machines etc. and many more.