The thickness is like a pencil, showing a cylindrical shape, a length of two or three centimeters. At first glance it looks like a feed. But this is not for the livestock, but for the boilers to eat. This is actually a biomass pellet fuel. “Reporters learned from the industry that, in order to comply with the requirements of urban environmental development and improve the economic efficiency of enterprises, more and more companies have quietly joined the ranks of clean energy alternatives to achieve low-carbon transformation, involving textiles and clothing, food, chemical and many more. Traditional industries.
Abandoned palm shell favored
“Biomass pellet fuels are processed and shaped with agricultural and forestry residues as the main raw material, such as sawdust, wheat straw, branch tree bark, and peanut shells, etc. The waste can be used.†Shishi Yongning, a weaving company, invested more than 300,000 yuan in July last year. The use of a "chain biomass boiler" eliminated the use of conventional coal-fired boilers that had been used for seven years.
In the same way, not long ago, the Land Group in Shishi spent 50,000-60,000 yuan on each boiler, and the raw materials for combustion changed from coal to palm shells. It is understood that palm shell is also a kind of biological environmental protection fuel. Palm trees are the most oil-producing crops in the world. The main producing areas are in Indonesia, Malaysia and other countries. The palm husks have long been abandoned until a Malaysian company successfully used them as biofuels in 2005 and European countries have introduced them.
“After the shell is dried, it can be directly burned without technical processing. The heat value generated when the palm shell is burned is 4600-5000 kcal/kg, which is higher than that of general biofuels.†Person in charge of Quanzhou Entry-Exit Inspection and Quarantine Bureau Introduction, after the combustion of palm shells from Quanzhou enterprises came mainly from the domestic, and a group of people from Indonesia at the end of April was the first import of palm shells from Fujian ports. Pursued by enterprises, imported palm shells are expected to become the norm.
The advantages of biomass fuel are outstanding
In order to comply with the urban environmental development, more and more boilers are now starting to phase out coal as raw materials, and according to the relevant regulations, alternatives can be burning electricity, burning heavy oil (ie diesel oil), natural gas and biomass fuels.
“According to the actual cases we have done, compared with the first three, biomass fuels have higher economic benefits.†Wang Zhenquan, general manager of Quanzhou Hengxing Energy Energy Saving Technology Co., Ltd., wrote an account to the reporter: Taking a four-ton oil-fired boiler For example, for each ton of steam produced, approximately 88kg of heavy oil is required, at a market price of 4,750 yuan/ton. One ton is equal to 1000kg, then the cost per ton of steam produced is 88kg x 4.75 yuan = 418 yuan/ton. After the fuel is changed to biomass, a minimum cost saving of 40% is achieved, ie 418 yuan x 60% = 250 yuan/ton per ton of steam. According to the above data, the company's current fuel consumption is 500,000 yuan/month, after the conversion Save a minimum of 500,000 yuan / month x 40% x 12 months = 2.4 million yuan. Compared with natural gas, there are still advantages. Similarly, taking four tons of natural gas boilers as an example, about 1.8 million yuan can be saved each year.
Not only that, biofuels will also greatly reduce pollutant emissions after combustion. “The previous boilers were very dusty and dust, and even the boiler houses were coal ash. Now the boiler room is clean.†This is a common feeling for companies after the elimination of coal-fired boilers. Taking the use of 10,000 tons of palm shells instead of coal as an example, it is understood that at least 161,000 tons of carbon dioxide, 150 tons of soot, 80 tons of sulfur dioxide, and 70 tons of nitrogen oxides can be reduced annually.
High cost performance but subject to raw material supply
However, in general, the cost of biomass fuels relative to coal is high. Take biomass pellets as an example. According to the use of the company, the cost of pure fuel will increase by about 20%. However, in the long run, it still has obvious advantages. The personage inside course of study introduces, on the one hand, its calorific value is large, the fuel purity is high, does not contain the other sundry matter that does not produce calorie, will reduce the cost directly for the enterprise; On the other hand, the clean and sanitary feeding is convenient, reduces the labor intensity and the labor cost of the worker Traditional boilers require 4 people. Now it takes only 1 person to complete it. It also improves the working environment.
“In many biomass fuels, palm shells are a relatively cost-effective type and are very popular with companies. At present, there are only 60 companies in Shishi. Its price is only 80 US dollars per ton, which is 10% lower than the price of bituminous coal. -15%. Take a 15 ton chain boiler as an example, use palm fruit as a substitute for coal combustion, save 1,200 tons of standard coal annually, and receive a national energy-saving emission reduction policy award of 300,000 to 500,000 yuan.†Wang Zhenquan introduced in order to expand the import of raw materials. The company has set up more than a dozen acquisition points in Southeast Asia. However, on the whole, the current supply is still relatively low compared to the demand of the enterprise. This also makes this new environmentally-friendly fuel more widespread, subject to certain restrictions.
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