Q:I was a major in geological engineering, in the practice of mineral petrology, the teacher asked, "the mineral composition of coal?" Is a mineral petrology, coal chemistry is not in, please master, senior students. Thank you

One, the carbon in coal is generally believed that coal is composed of large aromatic rings with a fat side chain and condensed ring composed of. These fused rings are made of carbon. Therefore, the carbon element is the most important element of organic polymer. At the same time, there is a small amount of inorganic carbon in coal, mainly from carbonate minerals, such as limestone and calcite.

Q:Is it useful to use bamboo charcoal bags? Bamboo charcoal package is activated carbon? Want to buy one, do not know how to choose?

Bamboo charcoal package is only ordinary bamboo charcoal, its adsorption is very small, very easy to saturate, saturated and released

Q:Filtration of activated carbon can be used repeatedly?

Of course, but the effect of repeated use and time is greatly reduced. Because the activated carbon adsorption of other substances, it is difficult to remove the general method

Q:How to distinguish the mechanism of charcoal is good or bad?

Calorific value, the amount of energy released per kilogram of charcoal under certain conditions. The calorific value of charcoal is directly related to carbonization temperature and holding time. Under the same carbonization temperature and holding time, the calorific value of different raw materials is different. Generally speaking, the carbonization temperature is high, the holding time is long, its carbon content is also big, sends the heat naturally also high. When the carbonization temperature is less than 450 DEG C, the wood charcoal and the waste heat from the corner of the charcoal heat is usually between 6500 ~ 7 million card /kg, straw and rice husk carbon calorific value is generally about 6 million card /kg. When the carbonization temperature is greater than 600 DEG C, the heating capacity of the carbon produced by the material can be increased by a factor of 500 to 1 million.

Q:1 tons of standard coal to produce heat energy equal to how much Coke

Therefore, 1 tons of standard coal produced heat energy of 29270*1000 kJ

Q:What is the difference between wood activated carbon and coal activated carbon

From the long-term trend: coal is a non renewable resource, a substantial increase in carbon dioxide emissions of coal activated carbon resources are limited and the production process, so the product price of raw materials and environmental protection cost push upward trend; and wooden activated carbon because the main raw material for the forest "three residues, renewable, and the price is expected due to technical progress tends to be relatively decreased, so the wooden activated carbon is higher than the long-term competitive advantage of coal based activated carbon.

Q:What is the use of activated carbon

Activated carbon is a kind of purification material, adsorbent, catalyst

Q:What is the difference between white and black peat

The "black peat" is more dense, but it is not suitable for the production of humic acid and humic acid fertilizer.

Q:Where there is so much coal, so that the earth has not been emptied

The forest is only in the Devonian, that is, before the Carboniferous geological age, although not the Carboniferous coal, but the proportion of coal was formed in the Carboniferous period is much higher than other periods.Why is Carboniferous coal formed the most?Of course, the swamp plays a role. Because of lack of oxygen in the swamp, microbial activity slows down the rate of decay. But the swamp is not only in the Carboniferous, why coal in this period appeared the most? There is a saying that the surrounding microbial activity is not very active.

Q:I would like to ask you, the total energy consumption (tons of coal) mean?

It is a virtual coal of 6500 kcal per kg calorific value,