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admin July 31, 2023 0 Comments

Bio Coal Plant - Ultimate Guide on Briquetting Process

Bio-coal briquettes emerge as a stellar substitute for traditional coal, especially when we’re facing the ramifications of a growing population that stretches our resources daily. But to truly grasp the significance of these bio-coal briquettes, let’s delve into the issues surrounding the energy crisis.

What Are Bio Coal Briquettes?

A greener alternative to traditional coal, bio coal briquettes serve as an environmentally conscious biofuel replacement for coal and charcoal. They are developed from organic biomass.

Primarily composed of green waste and assorted organic substances, bio coal briquettes are a common choice for generating electricity, producing heat, and providing cooking fuel. These solid, compacted formations encompass a range of organic materials, including elements like rice husk, bagasse, ground nut shells, municipal waste, and agricultural byproducts. 

The precise makeup of these coal briquettes can fluctuate depending on the region, due to the differing availability of raw materials. These raw materials are collected and condensed into a briquette format, allowing them to burn for extended periods and simplifying the transportation process.

Raw Material Used in Bio Coal Plant for Making Briquettes

A large number of developing nations generate enormous amounts of agricultural waste. Sadly, these residues are often not utilized effectively, and are typically incinerated directly, leading to significant environmental pollution. The main types of such agricultural waste are as follows:

  • Bagasse as Sugarcane Production Waste
  • Rice Husk, Wheat and Paddy Straw
  • Coffee Husk
  • Coir Pith
  • Jute Sticks
  • Groundnut Shells
  • Mustard Stalks
  • Cotton Stalks

Bio coal briquettes, primarily sourced from agricultural cellulosic wastes, are usually the preferred option. These byproducts are suitable for conversion into eco-friendly coal briquettes. These briquettes could also be referred to as ‘white coal‘ due to their distinctive properties. Known as a ‘clean fuel’, white coal briquettes find their utility in thermal applications. 

The production of briquettes from agro waste introduces a plethora of advantages. They’re not just environmentally friendly, but also offer a solution to the escalating energy crisis. Depending on the raw materials used in their construction, there are various types of bio coal briquettes, including:
  •  Sawdust briquettes
  • Shredded straw briquettes
  • Coconut shell charcoal briquettes
  • Shredded paper briquettes
  • Cardboard briquettes 
  • Pine briquettes

Bio Coal Briquetting Press Process

The process of briquetting press is quite intricate. Briquetting essentially involves the densification of loose biomass, a feat accomplished by applying substantial mechanical pressure to the biomass, resulting in a compressed, cylindrical shape known as briquettes. 

The high moisture content often leads to low thermal efficiency and rampant air pollution when loose bagasse is burned directly in traditional grates.

Based on the specific type of biomass, there are typically three necessary processes to consider.

  • Sieving–Drying–Preheating–Densification–Cooling–Packing 
  • Sieving–Crushing–Preheating–Densification–Cooling–Packing
  • Drying–Crushing–Preheating–Densification–Cooling–Packing
A key factor in the process of biomass briquette production is the method of drying out the biomass. Various approaches, such as torrefaction, carbonization, or different levels of pyrolysis, can be employed by manufacturers.
The degree of compaction is another aspect that influences production. Torrefaction of biomass, for instance, wood or grain, involves a mild form of pyrolysis at temperatures typically ranging between 200 and 320 °C. This process modifies the properties of biomass to deliver a higher quality fuel for combustion and gasification. It results in a relatively dry product, curbing its potential for organic decomposition.
A piston press can create solid briquettes for various purposes, while screw extrusion is used to compact biomass into loose, uniform briquettes, which can substitute for coal in cofiring. This technique creates a toroidal, or doughnut-shaped, briquette. The center hole in the briquette enlarges the surface area, leading to a higher combustion rate.

Bio Coal Briquettes Uses

Briquettes are combined with coal to generate the heat needed for boilers. These boilers are a staple in diverse industries such as sugar mills, paper mills, chemical plants, cement factories, food processing units, and oil extraction facilities, providing essential steam generation and heating. 

Bio coal briquettes find utility in forges and foundries too, facilitating metal heating and melting. They’re also employed in brick kilns and ceramic units to fuel furnaces. Significantly, they play a role in the gasification process. The resultant gas can be harnessed to produce power, potentially replacing coal-based producer gas systems and oil firing in furnaces.

Other than this bio coal briquettes uses in various industries like:-
  • Distilleries 
  • Dyeing units 
  • Tobacco processing
  • Tea processing 
  • Leather industries
  • Textile industries
  • Hotels 
  • Power plants 
  • Brick kilns
  • Polymer industries 
  • Paper mills 
  • Cement plants
  • Gasifier
  • Food processing industry
  • Milk dairies 
  • Pharmaceutical industry
  • Tire retreading industry 
  • Wineries
  • Household boilers

Benefits of Briquettes

  • These briquettes boast a high calorific value, falling between 3,500 and 5,000 Kcal/Kg.
  • They have a remarkably low moisture content (2-5%), unlike lignite, firewood, and coal which typically contain 25-30% moisture.
  • They offer an economical alternative to users compared to other fuel forms.
  • Briquettes can be manufactured with a density of 1.2g/cm³ from loose biomass with a bulk density of 0.1 to 0.2 g/cm³.
  • Their compact size simplifies both handling and storage.
  • They offer consistent quality.

Jay Khodiyar Bio Coal Plant Manufacturer

Briquetting plant

Briquetting Plant Technical Specifications

  • Finish Good Shape: Cylindrical
  • Finish Good Diameter: 65mm
  • Briquettes Length: 50 mm – 300 mm
  • Raw Material in feed Size: 1mm x 5mm
  • Bulk weight: 50 – 250 kg/m3
  • Raw Material Moisture: 7-10%
  • Power Required: 60 HP
  • Production Capacity: Up to 800 Kg/Hr 10% ± (* The production capacity depends on the density of the raw material.)

Jay Khodiyar takes pride in being a renowned bio coal plant manufacturer, Wood chipper machine, exporter, and supplier of a unique range of Bio Coal Plant and Briquetted White Coal. These products are designed using premium raw materials and cutting-edge technology, ensuring strict adherence to internationally recognized standards.

Jay Khodiyar Bio Coal Plant is particularly effective for users dealing with high-density raw materials. This machine stands out for its exceptional performance and superior quality. It can handle various types of raw materials, including agricultural waste and forest waste, turning them into biomass briquettes.