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

The composition of coal is mainly composed of organic matter, which is mainly composed of carbon, hydrogen, oxygen, nitrogen and other elements. There are ten kinds of elements in coal, but the elements of coal are usually composed of five elements, namely carbon, hydrogen, oxygen, nitrogen and sulfur. In coal, the content is very small, a large variety of other elements, generally not as the composition of the elements of coal, but only as an element or trace elements in coal.

Q:Types of coal and how

In the class of G>85 bituminous coal, the coal needed to determine colloid layer maximum thickness value Y or Oaxaca expansion degree B value to limit coal, gas coal and other sub bituminous coal type. When the Y value is greater than 25mm, such as Vdaf>37%, is divided into gas. Such as Vdaf<37%, are divided into fat. If the Y value of <25mm, according to the size of its Vdaf and divided into the corresponding other types of coal. Such as Vdaf>37%, should be divided into gas coal, such as Vdaf>28%-37%, should be divided into 1/3 coking coal, such as Vdaf is below 8%, it should be divided into coking coal.

Q:What is the difference between carbon and carbon materialsJust out of work, do activated carbon, carbon materials and carbon materials often see, I do not know what the difference, trouble you!

Carbon is an element. Carbon material usually refers to the material containing carbon and the main body

Q:What is the use of power coal

With the coal category, mainly lignite, long flame coal, non caking coal, lean coal and a small amount of anthracite. From the commodity coal, the main washing mixed coal, washed coal, coal, coal, etc.. The poor quality coal mainly refers to the low ash value (less than 40%) which is unfavorable to the operation of the boiler (less than 15). Bituminous coal of 73 MJ / kg, anthracite with low volatile content (less than 10%), lignite with high moisture content and high sulfur content (more than 2%), etc..

Q:What should a charcoal coffee look like?

More than and 100 years ago, the entire Middle East coffee country, then outward transport did not flourish, Yemen Mocha was the main output of a port near the Red Sea, most of Africa's coffee production is first transported to Yemen port of Mocha focus and output to europe. One hundred years later, African countries have gradually developed a coffee output port belonging to their own, no longer rely on the Mocha port, Mocha port also has retreated to the blockage of inland port of Mombasa Durban but now Africa port Beiva port... Africa has become a number of emerging coffee export port, but at that time as long as the coffee is concentrated in Mocha port and then out of the African coffee, are collectively referred to as Mocha coffee.

Q:General charcoal and activated carbon what is the difference?

The production cost of different bamboo charcoal only once the carbonization process of activated carbon, and also need an activation process, its cost is much higher than that of bamboo charcoal, about 3 - 5 times. So the selling price of the product is bamboo charcoal 3-5 times.6, and not the same as raw material consumption of activated carbon as raw material consumption and high 3-5 times than the bamboo charcoal, such as 6T (tons) of bamboo can be fired 1t bamboo charcoal, but the 3-5t can process 1t bamboo charcoal activated carbon. Of course, the coconut shell activated carbon raw material costs will be higher, but the effect is better, not a.7 shape with a barrel charcoal, bamboo charcoal in different poses and with different expressions, pieces of pieces of carbon, carbon, carbon particles, carbon powder and so on and the use of a wide range, such as carbon tube can be made into all kinds of crafts, charcoal tablets can be used for water to cook, and so on; and the active carbon is generally only powder (diameter less than 0.18mm (8mm) and the particle diameter is less than or equal to two), because there is no large activated carbon, so its application is very The limitations of the.8, the adsorption of bamboo charcoal to the pores of the main hole, and activated carbon is very different

Q:How to use long carbon printing effect

Binchotan mask: 1 dry skin: such as makeup, sunscreen isolation ah, using charcoal mask removal of heavy metals. 2 pray for oily skin is 3 oil used in the neck lymph drainage promoting effect of 2-3 to pray 4 times a week, a thin layer of 3-5 minutes, then rub massage 5 beat Cleansing Cream clean.

Q:A 10 ton steam boiler runs for about 24 hours a dayHow many cubic meters per day do you have to burn the fuel, and how many kilograms of diesel oil should be fired per hour of the oil boiler 10T?

So: need to burn an average of 50/29.3=1.7 tons of coal per hour, the amount of 1.7*24=40.8 tons per dayIf the burning of ordinary coal (3500-4000 kcal) requires 3 tons. The amount of 3*24=72 tons per dayHe needs to know the amount of heat to burn gasThe burning of diesel oil is 20 tons per day

Q:Usually we use coal as fuel to get heat in the process of combustion, but many harmful substances are discharged into the environment at the same time as waste. By referring to the information and refer to the schematic, please write in order to save resources, reduce waste, how should we make full use of coal?Urgently ahThe sketch map of which include: rubber, explosives, essence, nylon, coke, liquefied gas, gas......Thank you pull

Coal can be obtained through the air temperature from coke, coal tar, coke oven gas fractionation, coke and coke oven gas for fuel, high calorific value, and little pollution; coal tar is a kind of important chemical raw materials contain a variety of resources, can extract the essence, making explosives and nylon etc.. Thus, the coal is comprehensively utilized, and the environmental pollution is reduced

Q:I would like to ask my fridge, smelly, want to use activated carbon deodorant, but do not know all of the activated carbon can smell?

And broke into two halves. Can achieve the same effect (steamed bread do not eat!) Or use the burnt briquettes, with a plastic bag wrapped in the refrigerator for a long time can also absorb odor. I wish you good health.