Carbonization process, Biology

Assignment Help:

When coal is heated strongly in absence of air, it forms a strong, porous, dense and coherent mass known as coke. This process of conversion of coal into coke is called carbonzation.

(Note: The coal on carbonization becomes soft, plastic and fuse together to a large coherent mass, they are called caking coals. Such coals are difficult to be oxidized. If the coke obtained is porous, hard, strong and usable for metallurgical purposes, then the coal is known as coking coal.)                            

Steps involved in carbonization process

                                                                   904_carbonization.png

                                                                            Hydrogen is eliminated

                                                                                            ~8000C

                                                            Formation of plastic mass, evolution of gases

                                                                                              9000C

                                                                            Coke is formed by

                                                            Solidification of plastron, foam like mass              

There are two types of carbonization.

1.      Low temperature carbonization.

2.      High temperature carbonization.   

1.11.1 Low temperature carbonization

When the carbonization is carried out at 500-7000C, that it is called low temperature carbonzation. The coke contains 5-15% volatile matter and cannot be used for metallurgical processes. It ignites easily and is used in domestic usages. Coke obtained is smokeless and the byproduct gas obtained has high calorific value (6500-9500kcal/m3).

1.11.2 High temperature carbonization

When carbonization is carried out at 900-12000C, it is called high temperature carbonization. The coke produced has high strength, purity, hardness, desired porosity, and is used for metallurgical purposes. Coke obtained has low volatile matter (1 - 3 %) and the byproduct gas obtained has low calorific value (5400-6000 (kcal/m3).

 

1939_carbonization1.png


Related Discussions:- Carbonization process

How can the fermentation explain the origin of muscle cramps, How can the k...

How can the knowledge about fermentation explain the origin of muscle cramps and pains after intense physical exertion? A typical fermentation process because of oxygen scarcit

Explain fats in biological compound, Explain Fats in biological compound ? ...

Explain Fats in biological compound ? Fats :   Monoglycerides, diglycerides, and triglycerides are fats consisting of a backbone of the alcohol molecule glycerol, consisting of

Role of glucose-6-phosphate dehydrogenase - gene expression, Define Role of...

Define Role of Glucose-6-phosphate dehydrogenase - Gene Expression? Glucose-6-phosphate dehydrogenase (G6PD) is another enzyme involved in lipogenesis that is regulated by diet

What is meant by the peripheral nervous system, Q. What is meant by the per...

Q. What is meant by the peripheral nervous system (PNS)? The peripheral nervous system comprehends the ganglia and nerves of the body.

What is the significance of proteins for living beings, Q. What is the sign...

Q. What is the significance of proteins for living beings? Proteins play an essential role in nearly all biological processes. Due to their variety they can suppose many divers

Classification of biomaterials, Biomaterial is defined, in the broader sens...

Biomaterial is defined, in the broader sense, as any pharmacologically inert material that is capable of interacting with a living organism without causing adverse reactions either

Explain about the epilepsy, Explain about the Epilepsy? Epilepsy is a n...

Explain about the Epilepsy? Epilepsy is a neuromuscular disorder in which transient seizures recur due to an abnormal brain activity. The brain, through all orderly electric ex

Amino acids, Amino acids are the subunits ( or the monomers) from which pr...

Amino acids are the subunits ( or the monomers) from which proteins (polymers) are assembled. Each amino acid comprises of an amino functional group, and a carboxyl acid group, an

Define reagents for measurement of ph, Define Reagents for Measurement of p...

Define Reagents for Measurement of pH? Buffer solutions of pH 4, pH 7 and pH 9.18 for calibration and an unknown solution (i.e. solution of unknown pH) You can prepare these

Cost due to injury to worker, Cost due to Injury to Worker Medical...

Cost due to Injury to Worker Medical cost - medicine, surgery, hospitalization, extended treatment. Working time lost due to injury or death. Time loss of cowork

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd