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Sweden biomass pellet fuel industry evaluation<br>
Sweden is among the globe's biggest wood pellet fuel manufacturer and consumer. It's wood pellet production technology, sector policy, and also market version project. In this passage, I will certainly do thorough evaluation on Sweden biomass pellet fuel industry, and exercise some valuable experiences.



Intro

In the 1970s, many countries have actually made policies to promote biomass power as a way to manage power situation and atmosphere contamination. Since then, biomass energy market has created swiftly, and also the technology maintain improving.



As a result of the lack of mineral resources, Sweden's economic situation endured great loss in last century. To make certain nationwide energy security, Sweden federal government aim to establish renewable resource.



Biomass pellet fuel has the functions of high burning effectiveness, reduced ash web content, zero carbon exhaust, very easy transport, which has been popular in Europe and also North America. With bountiful forestry sources, Sweden pay much attention to the growth of biomass pellet fuel. Sweden uses up 20% of the world's biomass fuel intake, which grows up at the speed of 8-10%.



Sweden forestry resources and also biomass products

Sweden has plentiful forestry resources. The forest covers 64% of the land area, with 51% possessed by individuals, 24% by large wood business, and also 25% by countries as well as other public organizations. Besides, the forestry grows by 100 million heaps each year, and the deforestation amount is 92.4 million loads. The major forestry sectors are wood handling, paper handling, and also power wood. The wood products for making biomass energy primarily come from the 3 markets above, concerning 23.48 m3.



Basic material of wood pellets

Of the raw materials for making wood pellets, wood shavings take up 53%, sawdust 35%, as well as wood chips 5%, others (barks, farming residues, power forestry) occupies 7%. Some tiny wood pellet factory are developed base upon chipboard, furniture as well as sawdust mills.



With more firms engaging in biomass fuel production, the competitors on the raw materials come to be extra fierce. As the plant straws in Sweden are in scattered distribution, they are hard to gather and also process. So some producers and also institutes are developing brand-new materials like peat as well as power plants.



Wood pellet making technology as well as equipment

The pellet molding modern technology has actually developed in Sweden. Nowadays, it has actually attained commercial as well as market manufacturing. The manufacturing process includes high automation, requiring less drivers. The picture below presented the wood pellet production procedure.



Drying out: usually, the wetness material of sawdust is around 50%. A drum clothes dryer can lower the dampness material to 9-12% to make sure that it is received making pellets.

Crushing: the dimension of resources must be under 5mm. They need a hammer mill to minimize the size.

Conditioning: add high-heat heavy steam to the raw materials and soften the cellulous in it. More than half of the pellet fuel suppliers have conditioning procedure in production.

Pellet molding: a lot of wood pellet manufacturing facilities use upright type ring die pellet maker. The production capacity of one maker is 2-4ton/ h. The life span of ring die is 2000-3000h, while the roller can last 1000-1500h.

Air conditioning: the wood pellets extruded out from the pellet machine go to the temperature of 100 ℃. Pellets under this problem are easy to damage and inconvenient for transportation. A counter-flow cooler can cool the wood pellets in a modest means.

Packing: the cooled pellets need to be identified and also packaged according to consumers' demand. Little bags are 16kg, huge bags are 900kg. For large customers like power plant, the wood pellets are transferred by trucks and ships wholesale.

Biomass pellets classification and application

In 1999, Sweden government published the requirement of wood pellet fuel, in which they are categorized into 3 courses. The first class has premium quality. They can be used in residential little heaters and also stoves.The second as well as 3rd don't have premium quality. They are made use of by big commercial consumers.



Presently, 57% of the wood pellet fuels in Sweden can meet this requirement. Some of them can meet the EU standard, others are not generated according to this requirement.



Wood pellet fuel can be applied in small central heating boilers, medium-scale and also massive home heating supply center and also power plant. Currently, Sweden has 60% of wood pellet fuel for little as well as average heating boilers and local home heating supply center, as well as 40% for big heating supply center as well as co-firing power plant.



From the 1970s to the 1990s, Sweden regional home heating plant embrace coal to change oil. After the pass of CO2 discharge tax, these home heating plant resort to biomass fuel from coal. In the last decade, the quantity of biomass fuel for home heating grows from 1.1 PJ to 57PJ. Currently, regarding 400 local home heating plant has taken on wood pellet fuel.



Considering that the mid 1990s, residential wood pellet industry has actually made terrific progress. In the last years, the use of domestic heating wood pellets proliferates. Currently, Sweden has 200,000 households using wood pellet central heating boilers, 40,000 families using wood pellet stoves.



Sweden biomass power advancement goal and plan

To promote the continual advancement of biomass energy, Sweden has made a collection of laws and policies. To make sure the execute of these plans, the government likewise made several practical guidance actions and necessary industry requirement.



Sweden not just fulfill the responsibility specified Kyoto Protocol that cut greenhouse discharge by 8%, however also established its very own development objective of biomass energy. In 2006, the Priest for sustainable growth department claimed that Sweden will totally make use of biofuels and stop making use of oil, as well as become the initial nation that totally depend on renewable energy.



By 2020, Sweden will enhance its percentage of renewable energy to 50%, the usage ratio of renewable resource in transport market to 10%, energy efficiency by 20%, and also reduced the emission of greenhouse gas by 40%.



Wood pellet fuel motivation policy

Sweden has actually accomplished high rate purchase, investment subsidies, tax decrease and also exemption, quota system and also other biomass energy motivation policy.



Given that 1975, Sweden spends 36 million Euro from government budget plan to support biomass innovation growth. From 1997 to 2002, the government supplied 25% financial investment subsidy to biomass cogeneration jobs. From 2004-2006, the government supplied 1350 Euros for homeowners that utilize biomass furnace.



Sweden usually lay high tax on fuels, powers, CO2, SO2, and so on. To advertise the advancement of biomass energy, to exempt all tax obligations on biomass tasks. In 1991, Sweden government begins to lay tax on carbon dioxide emission, which makes the cost of oil and also nonrenewable fuel source rise. A lot of heat supply center and also nuclear power plant switches from nonrenewable fuel source to biomass fuel.



To motivate the nuclear power plant to use biomass power, Sweden government presented electric power quota system. This policy calls for the power suppliers to have certain portion of electricity produced by renewable resource. For every 1MWh electrical energy, the federal government will give tax alleviation based upon the biomass power amount.



Sweden wood pellet fuel shedding tool

Sweden wood pellet shedding innovation is in the leading setting. There have been over 20 pellet heater producers, over 50 types of wood pellet central heating boilers, 120,000 collections of pellet boilers, 20,000 sets of pellet ranges. As there are still many households making use of electric heating, the pellet boilers have significant potential.



Sweden pellet burning tools has central heating central heating boiler as well as biomass stove 2 types.



Central heating central heating boiler can be used in 1 or even more families. The thermal send with water. The powers are 10-40kw, which can be changed by 30% -100% according to needs. The main home heating boilers additionally has 2 types. The consolidated boiler is attached by a pellet burner and also a conventional boiler. The central heating boiler can get in touch with various burners. The integrated boilers are generally imported from Austria as well as Germany, some created by residential suppliers.



Biomass stoves or heating system

Biomass ranges additionally has 2 types. Independent pellet stove and Smokeshaft item kind heater. The previous on is extra prominent. The independent pellet range has a pellet stock bin within, which can hold wood pellets for 2-day use.



Biomass pellet stove can realize automated filling and burning. Based upon different feeding method, pellet stoves has leading feed, bottom feed and also straight feed 3 kinds. Top feed pellet ranges are the most preferred. Owing to high comfort and also sanitation, small pellet stoves sell well in recent years.



Functions of Sweden biomass fuel industry

Sweden has abundant forestry sources and abundant forestry waste, which become the main resources for biomass pellets.


Sweden wood pellet industry has actually been completely marketed. The majority of manufacturers are huge and medium firms, with mature modern technology. Tiny wood pellet manufacturing facilities are mainly improve chipboard, furniture and saw mills.

The government has made detailed regulations and plans to drive the wood pellet production. This is why the wood pellet industry establishes swiftly because the 1990s.

Requirement for wood pellet fuel maintain enhancing. In wood pellet making machine , Sweden released the criterion for wood pellets, as well as measured the strategy day of pellet fuel as well as heaters.

Fully grown burning technology and tools. Recently, Sweden's production of pellet boiler and pellet heating cooktops keep boosting.

Perfect quality assurance system. Sweden government stipulated that the wood pellet fuel and burning equipment need to acquire third-party testing certifications before getting in the market.



Verdict

Sweden is a major wood pellet fuel manufacturer as well as consumer in the world. floating fish feed machine plays an essential role in its production as well as way of living. Worldwide, biomass pellets are mosting likely to play a more crucial function in heating supply, power generation, and commercial production.

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