Production[ edit ] Pellet truck being filled at a plant in Germany. Pellets are produced by compressing the wood material which has first passed through a hammer mill to provide a uniform dough-like mass. The high pressure of the press causes the temperature of the wood to increase greatly, and the lignin plasticizes slightly, forming a natural "glue" that holds the pellet together as it cools.
The pellet is born in the tide of biomass energy. As hot-sale clean energy in the market, pellets not only give more options for using energy, but also provide a new way to make money.
Pellets have a lot of applications like biofuel, animal feed, electricity generation, fertilizer, and etc. Biofuel is a common application of pellets. Why we choose wood pellets to replace traditional fuels? Beside the environment friendly features, there are various advantages of pellets, such as turn waste into wealth, easy to get raw materials, easy to process, easy to transport, higher combustion efficiency.
Raw materials for pellets making Raw materials for pellets making have wide ranges, including plant, animal and microorganism, such as lignin, farming industry scraps, forestry and agricultural residues, livestock manure and waste produced in the Livestock husbandry production.
Raw materials of pellets contain cellulose, hemicellulose, and lignin. Due to the loose structure and low density, materials will pass through three stages include position rearrangement, mechanical deformation and plastic deformation. Inelastic cellulose and viscoelastic cellulose spiral and strand each other, which made the material smaller and denser.
Generally, there are some differences between wood pellets and feed pellets. Wood pellet Wood pellet is commonly made of wood chip, sawdust, shavings, bark, crop straw, and other biomass materials.
By the type of wood, raw materials of wood pellet can be divided into hardwood and softwood. Hardwood has high density, such as Birch, beech, poplar, yew, hard maple, elm, etc. In general, the hardwood has low water content, compared to softwood, it has longer burning time.
Softwood usually refers to gymnosperm like Pine, rosewood, cedar, fir, spruce, etc. Although softwood has shorter burning time compared to hardwood, it can burn more sufficiently.
In conclusion, every kind of wood has own advantages. Besides, heat and pressure change the structure and density of materials in the production, so hardwood and softwood of same weight will have equal combustion value.
Feed pellet Raw materials of feed pellet usually include core, bean pulp, straw, rice husk, and etc. According to the applications, feed pellets can be classified into fish pellet feed, feed pellet for rabbit, feed pellet for pig, and so on.
There are two questions for client who firstly come into contact with feed pellet. Why use feed pellet replace traditional feed?
What are differences between them? The feed pellet has advantages like comprehensive nutrition, improve digestibility of feed, and decrease the picky-eaters of animal, easy to transport and store, etc. So that feed pellet is popular among farmers.
Why add grease into raw materials?
Generally, except the corn straw, bean pulp, vitamin, salt, raw materials of feed pellet contain grease. The grease of feed pellet has two main function: Oxidation Unsaturated fatty acids in fat contain double bonds, so it can through reduction, and change into saturated fatty acids.
Dietary fats of ruminants can occur H effect in the rumen, saturated fatty acid content of body fat is higher. Hydrolysis fat will hydrolyze under the condition of acid or alkali, the hydrolysis products are glycerol and fatty acids, animal and vegetable fats hydrolysis was catalyzed by lipase.
Free fatty acid produced by hydrolysis is odorless and tasteless, but low-degreed fatty acid has strong smell like butyric acid and acetic acid. Various kinds of bacteria and mold can produce lipase. When feed pellets have inappropriate storage, the fat of pellets is easy to hydrolyze, which decrease the quality of feed pellet.
The degree of rancidity of fat is in the form of acid value. The acid value refers to required amount of KOH in the 1g fatty acid neutralization reaction.
When the acid value of fat is bigger than 6, it will have a bad influence in the health of animals.Bio4Energy Scientists Make First-ever Bio-based Equivalent of Carbon Black from Pyrolysis Oil Details Created: Thursday, 27 September How to use different raw materials to make pellets?
Sawdust, branches, wood shavings, straw, rice husk, grass, waste paper, EFB Palm fiber, alfalfa, bagasse, coconut shell, bamboo powder, peanut shell are all biomass materials. Coir Fibers as Valuable Raw Material for Biofuel Pellet Production and energy production, coir fiber pellets may also serve as raw materials for biorefinery and/or composite production processes .
However, not all biomass materials are suitable for com-mercial pellet production. Pelletization and the resulting. Sunflower Husk Pellets. Pellets: Sunflower Husk Pellets Place of Origin: Poland We sell Biomass (sunflower husk pellets, cocoa and palm nut husks etc.) as biofuel to Power Stations and other Buyers We sell and buy all kinds of biomass: straw, wood, sunflower husk pellets.
A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter..
Biofuels can be derived directly from plants (i.e. energy crops), or indirectly from agricultural. In the race to meet clean energy standards, biomass energy is often touted as carbon neutral.
To satisfy European Union (EU) demand, forests in the United States are turned into wood pellets and.