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Introduction of Giant King Grass Pellet Production Line

  • Date: 2021-01-14 09:10:50
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Giant King Grass

Giant King Grass, also known as elephant grass, king grass, or bana grass, is a kind of fast-growing, high yield hybrid grass. It is mainly planted in tropical and subtropical regions with more than 100 days of sunshine per year, and more than 32 inches (800mm) of rain per year. It is a very versatile species that can be grown under a wide range of conditions and systems: dry or wet conditions, smallholder, or larger-scale agriculture. It does not compete with food crops. Giant King Grass is mainly grown in the United States, Virgin Islands, China, Pakistan, Thailand, Myanmar, and South Africa, etc.

Giant King Grass
Giant King Grass

Giant king grass is perennial and can be harvested 2-3 times per year. It is a short rotation crop, and it is harvested for pellets at 13-16 feet tall (4-5 m) every 150-180 days. In a tropical area with a 12-month growing season, it can produce a year-round supply at 167 tons per acre, which is much higher than other grasses. The high growth rate makes the Giant King Grass provide a continual supply of biomass year-round.

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Giant King Grass Energy Analysis

Proximate Analysis Unit Sun Dried As Received Giant King Grass Bone Dry
Total moisture % 14 0
Volatile matter % 65.68 76.37
Ash % 3.59 4.17
Fixed carbon % 16.74 19.46
Total sulfur % 0.11 0.13
HHV MJ/KG 15.85 17.43
LHV MJ/KG 14.52

The energy content of Giant King Grass is excellent at 7,900 BTU per bone dry pound (4,400 kcal per kilogram or 18.4 MJ per kilogram), very similar properties as corn stover (7,650 BTU). According to the analysis above, we find that the component of giant king grass is similar with that of corn stover and miscanthus in composition, which are the excellent biomass materials for fuel pellet production. As a high yield plant, giant king grass is undoubtedly a good resource of biomass raw materials for fuel pellet production.

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Process Steps of Giant King Grass Pellet Production Line

Generally speaking, in order to get the fuel pellets from freshly harvested giant king grass, a series of procedures must be closely followed. The whole process of giant king grass pellet production line include raw materials crushing, drying, pelletizing, cooling and packing section.

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Crushing——Giant King Grass Pellet Production Line

The giant king grass for making fuel pellet is 3-5m in height, so it must be crushed first by grass crusher. The grass needs to be crushed into small pieces with the size smaller than the hole diameter of the grass pellet machine ring die. Our grass crusher machine is no doubt a nice choice.

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Drying——Giant King Grass Pellet Production Line

When pelletizing by grass pellet machine, the moisture really plays an important role. Too high or too low can affect the final pellet quality. The moisture of freshly harvest grass is approximately 70-75%, which needs to be lowered to around 10% by sun drying or the rotary drum dryer.

Pelletizing——Giant King Grass Pellet Production Line

As the core procedure of Giant King Grass pellet production line, pelletizing directly influence the pellet quality. We have ring die Elephant Grass Pellet Mill for your selection.

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Elephant Grass Pellet Mill

Cooling——Giant King Grass Pellet Production Line

Newly pressed giant king grass pellets are hot and soft, which need to be cooled down to ensure the hardness and durability.

Packing——Giant King Grass Pellet Production Line

After cooling, the giant king grass pellets can be packed according to your requirement.

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Benefits of Giant King Grass Pellets

  • Made from Giant King Grass, 100% renewable resource.
  • High yield Giant King Grass makes the pellet low cost.
  • High density makes the transportation and storage more convenient.
  • Low carbon, 20% of carbon emissions are reduced.

Giant King Grass Pellets-Replacement for Coal

Item Density (kg/m3) Moisture (% wet basis) LHV ( Ash (% dry matter)
Coal 850 <10 24 12
Wood pellets 650 <10 17.3 0.5
Straw pellets 600 <10 15 5.2
Giant king grass pellets 600 8.8 15.6 5.1

Coal has the largest carbon dioxide emissions per unit energy of all fossil fuels, and coal-fired power plants are a major source of man-made carbon dioxide emissions. The energy content of Giant King Grass pellets is found to be 18.6 MJ/kg on a dry basis, which is equivalent to 8,000 BTU per pound or 4,450 kcal per kilogram in alternative units. The pellets themselves have a lower heating value (LHV) of 15.6 MJ/kg at the 8% moisture level of the pellets.

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According to the U.S. Department of Energy, pellets made from Giant King Grass and other biomass can potentially replace up to 20% of the coal in existing coal-fired power plants, which reduce carbon emissions by 20% while preserving the large capital investment. Wood pellets are the best alternative to coal, but supply is limited. Giant King Grass pellets will be the lowest cost because of its extremely high yield, year round production and meets the cost targets of green energy.

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Giant King Grass Pellets Application

  1. Direct combustion as a replacement for coal or oil in electric power/heat/steam plant.
  2. Applied for co-firing with coal in electric power plants to reduce the carbon emissions.
  3. Large global demand:

    – Particularly in Europe

    – Korea, China, Japan are emerging.

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Customized Giant King Grass Pellet Production Line Price

Actually, all of our Giant King Grass Pellet Production Lines are customized, because each customer's production requirements, site area, site height and other objective conditions are too different, so our Giant King Grass Pellet Production Line's actual configuration is different.

In other words, the price of the Giant King Grass Pellet Production Line in different configurations is different. But generally speaking, the Customized Giant King Grass Pellet Production Line Price is 40,000-2,000,000USD, and the output is 600kg/h-60t/h.

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The above is the article for you: Introduction of Giant King Grass Pellet Production Line.

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