What is biomass power generation?

Question 1: What kind of industrial adjustment catalogue does biomass power generation belong to? 5 fen new energy

Question 2: What is biomass energy and biomass power generation 1 Introduction?

Biomass power generation takes straw (including cotton, wheat, corn and other straws) and agricultural and forestry wastes (such as bark) as raw materials. It is of great significance to generate green power through direct combustion power generation technology, which can not only increase the proportion of clean energy and improve the environment, but also increase farmers' income and narrow the gap between urban and rural areas.

Large-scale power generation using agricultural and forestry wastes in China is still in its infancy, with immature biomass power generation technology, high project cost, large total investment and high operating cost. Although the state has given preferential policies for electricity prices, the profit level is still not as good as that of conventional thermal power. The reason is that the unit cost is high, the fuel cost is high and the actual tax rate of biomass power generation enterprises is too high. The Renewable Energy Law stipulates that agricultural and forestry waste biomass power generation should enjoy preferential policies such as finance and taxation, but relevant policies and measures have not yet been introduced.

In foreign countries, biomass power generation technology represented by high-efficiency direct-fired power generation is relatively mature, and the high-efficiency direct-fired power generation technology of agricultural and forestry biomass pioneered by Denmark has been listed as a key promotion project by the United Nations. The agricultural and forestry biomass power generation industry is mainly concentrated in developed countries, and developing countries such as India, Brazil and Southeast Asia are also actively researching and developing or introducing technology to build related power generation projects. Denmark's land area is only 65,438+0/4 that of Shandong Province in China. The country has established 65,438+05 large-scale biomass direct-fired power plants, which consume about 654,385+05 million tons of agricultural and forestry wastes every year, providing 5% of Denmark's electricity supply. Foreign policies to encourage the development of biomass power generation industry are mainly reflected in price incentives, financial subsidies, tax relief and so on. These are very strong.

2 biomass fuel power generation

2. 1 biomass fuel

Biomass energy is a new mode of energy production with agricultural and forestry organic wastes and energy plants planted on marginal land as the main raw materials. Energy problem is one of the severe challenges facing mankind in the 2 1 century. The energy problem has become a difficult problem for all countries in the world. Petrochemical energy is not only non-renewable and limited in reserves, but also releases a lot of harmful gases such as carbon dioxide, nitrogen and sulfur oxides after combustion. It has seriously polluted the environment and caused many ecological problems, such as greenhouse effect, global warming, biodiversity reduction and desertification. 20 10 by 2020, the global energy use pattern may change rapidly, and renewable energy will definitely replace fossil fuels.

Biomass fuel, including organic substances such as plant materials and animal manure, is the new name of the oldest fuel used by human beings. Biomass fuel is mostly an environmentally friendly new energy source processed from straw crops. Its diameter is generally 6~8 mm, its length is 4~5 times of its diameter, its crushing rate is less than 1.5%~2.0%, its dry basis water content is less than 10%~ 15%, its ash content is less than 1.5%, and its sulfur content is less than.

According to the characteristics and transformation mode of biomass, it can be divided into three biomass fuels: solid, liquid and gas. The utilization of biomass energy in China includes four categories: biogas production from livestock manure, gas production from crop stalks, conversion of food crops into energy crops and conversion of oil crops into biomass diesel. Different fuels produce different calorific values.

2.2 the concept of biomass fuel power generation

Biomass fuel power generation is a kind of renewable energy power generation, which is generally divided into direct combustion power generation technology and gasification power generation technology. Including direct combustion power generation of agricultural and forestry wastes, gasification power generation of agricultural and forestry wastes, garbage incineration power generation, landfill gas power generation and biogas power generation.

Direct combustion of biomass energy to generate electricity is a high-tech that uses crop straws and forest wastes as raw materials, and then simply processes them and transports them to biomass power generation boilers. After full combustion, steam is generated to drive the steam turbine to generate electricity. The ash powder produced after combustion is processed into potash fertilizer and returned to the field. This process transforms the original open-loop industrial chain of agricultural production into a recyclable closed-loop industrial chain, which is a complete ecological economy that turns waste into treasure.

Biomass gasification power generation technology, also known as biomass power generation system, uses a gasifier to convert biomass into combustible gas, and then generates power through an internal combustion engine or gas turbine after purification processes such as dust removal and coke removal. The process includes three aspects: biomass gasification; Gas purification; Gas power generation. It can not only solve the effective utilization of renewable energy, but also solve the environmental pollution of various organic wastes. Based on the above reasons, biomass gasification power generation technology has been studied and applied more and more, and it is becoming more and more perfect.

2.3 the significance of biomass fuel power generation

Alleviate the crisis of energy shortage; Increase the proportion of clean energy in China; Improve the environment; Expand the scale of township industries, increase farmers' income and narrow the gap between urban and rural areas.

The main fuel for straw power generation comes from wheat ... "";

Question 3: How many people are there in the biomass power plant? About 100 people.

Question 4: What is the principle and prospect of biomass power generation? The so-called biomass power generation means that plant fuels such as straw, rice straw, bagasse and sawdust are directly burned or fermented into biogas and then burned, and the heat generated by combustion makes steam drive the steam turbine to generate electricity. At present, the largest unit in China is 1.5 million kilowatts, which mainly uses wheat straw and straw abandoned by farmers in plain areas to burn to generate electricity. Plant ash after burning is regarded as fertilizer, and the state regards it as clean energy and gives policy subsidies. However, the units that have been running at present are basically losing money. .......

Biomass power generation mainly uses agricultural and forestry industrial wastes as raw materials, and can also use urban garbage as raw materials for direct combustion or gasification.

In recent years, the supply and demand of energy and electricity in China are tightening, and the power generation industry at home and abroad attaches great importance to the development and utilization of biomass resources which are rich in resources, renewable and conducive to improving the environment and sustainable development. So the biomass power generation industry came into being.

The world biomass power generation originated in 1970s. At that time, after the worldwide oil crisis broke out, Denmark began to actively develop clean and renewable energy and vigorously promote biomass power generation such as straw. Since 1990, biomass power generation has been greatly developed in many countries in Europe and America.

China is a big agricultural country with abundant biomass resources. Various crops produce more than 600 million tons of straw every year, of which about 400 million tons can be used as energy. The total biomass of forest trees in China is about 654.38+0.9 billion tons, the available amount is 900 million tons, and the total amount of energy available is about 300 million tons. If used effectively, the development potential will be enormous.

In order to promote the development of biomass power generation technology, since 2003, the state has successively approved three demonstration projects of straw power generation in Jinzhou, Hebei, Shanxian, Shandong and Rudong, Jiangsu, promulgated the Renewable Energy Law, and implemented relevant supporting policies such as preferential on-grid electricity prices for biomass power generation, which has enabled biomass power generation, especially straw power generation, to develop rapidly.

In recent years, large state-owned, private and foreign-funded enterprises such as State Grid Corporation and five power generation groups have invested in the construction and operation of biomass power generation industry in China. By the end of 2007, the national and provincial development and reform commissions had approved 87 projects with a total installed capacity of 2.2 million kilowatts. More than 15 biomass direct-fired power generation projects have been completed and put into operation in China, and more than 30 projects are under construction. It can be seen that the development of biomass power generation industry in China is getting better and better.

According to the development goal put forward in the 11th Five-Year Plan, the installed capacity of biomass power generation in the future will be 5.5 million kilowatts, and the published Medium-and Long-term Development Plan for Renewable Energy also puts forward the development goal that biomass power generation will reach 30 million kilowatts by 2020. In addition, the state has decided to arrange funds to support the construction of industrial service systems such as renewable energy technology research and development, equipment manufacturing and testing and certification. Generally speaking, the biomass power generation industry has broad prospects for development.

Question 5: Advantages of biomass power generation Because the biomass used in biomass power generation needs to absorb carbon dioxide when it grows, it can offset the carbon dioxide emitted during combustion. It can be said that using it to generate electricity is a kind of power generation method without carbon emission, which is one of the advantages. The second advantage is that when it generates electricity, its sulfur emission is also very low because of its low sulfur content. The third advantage is the utilization of agricultural waste, including straw and livestock waste, thus forming a circular economy system. The fourth advantage is lower cost. In the case of state subsidies for biomass power generation, the performance fund recovery of biomass power generation has been well guaranteed.

Question 6: How to approve biomass power generation? First of all, you must apply for a pre-project work permit letter, which should now be approved by the provincial development and reform commission. However, you must first submit an application to the county development and reform bureau where the project is located. Materials include project application, project proposal, enterprise profile and business license; Then wait for the development and reform bureau to apply step by step;

After receiving this letter, you can start the preliminary work, including preparing project application, environmental assessment, safety assessment, etc.

Then, you need to declare the feasibility study, and attach relevant agreements, network access permits, land use certificates and so on.

In fact, when he receives the previous letter, he will tell you the work to be done and the documents to be provided.

That's it. If you need more, you can contact me.

Question 7: Why should biomass fuel be the first choice for power generation? Renewable energy has less pollution than coal and lower cost than gas. Secondly, the full use of crop straw reduces the air pollution caused by burning straw in the open air and increases farmers' income.

Question 8: Which of the following does not belong to the characteristics of biomass power generation? Personally, I think B should be excluded first.

Because we usually say that XXX has a wide range of interests, so he has a wide range of interests.

Second, rule out a.

People's hobbies may be extensive, but they usually point to a certain field, that is, they are directional. Then rule out D. "Interest is the best teacher.

Question 9: Development significance of biomass power generation 1. Increase the proportion of clean energy in China. Improve the environment. Increase farmers' income and narrow the gap between urban and rural areas.