Coal gas, Biology

Assignment Help:

When coal is carbonized coke is formed along with coal gas.

                            13000C

         Coal         679_coal gas.png                        coke + coal gas

                     In absence of air

Coal is taken in a silica retort and heated to 13000C in absence of air. The coal gas produced is passed through a hydraulic main to remove tar. Any tar or ammonia present in gas is removed by scrubbing with water. The colled gas is then scrubbed with creosote oil where, benzol, naphthalene etc. gets dissolves and removed. The sulphur compounds can be removed by passing the gas in a column of ferric oxide, which can be regenerated on exposure to air.

     Fe2O3 (S) = 3H2S (g)    679_coal gas.png   Fe2S3(S) + 3H2O(l)

Fe2O3 is regenerated by heating Fe2S3 in presence of air.

     2Fe2S3 (S) + 3O2 (g)  679_coal gas.png     2Fe2O3(S) + 6H2S(g)

The purified coal gas is finally stored over water in gas holder. The average composition of coal gas is

     CH4 =32%            H2 = 40%          CO = 7%          N2 = 4%

     C2H4 = 3%            C2H2 = 2%        CO = 1%

Calorific value as illuminant as a fuel. It provides reducing atmosphere in metallurgy.


Related Discussions:- Coal gas

Hand washing in sterilization process, Q. Hand Washing in sterilization pro...

Q. Hand Washing in sterilization process? Hand washing is considered the single most important measure to reduce the risk of transmitting organisms to patients and HCWs (health

Explain alterations occurring in fruits and vegetables, Alterations occurri...

Alterations occurring in fruits and vegetables You may already be aware that fruits and vegetables vary greatly in their chemical composition. Though, some generalizations are

Explain biological aspects of nutrition, Explain biological aspects of nutr...

Explain biological aspects of nutrition Traditionally nutritionists have focused largely (or almost fully) on . However, we have realized over the years, that physiological bio

Define the different causes of under nutrition, Define the different causes...

Define the different causes of under nutrition ? 1. Scales (Screening Tool): The basic biochemical and anthropometric parameters are used in this screening. 2. Recognizing th

Determine the functional brain activity, Determine the functional brain act...

Determine the functional brain activity PET is powerful means of assessing functional brain activity, although it does not directly measures neuronal events. Rather it indicate

Define the binge eating disorder, Define the Binge Eating Disorder? Bin...

Define the Binge Eating Disorder? Binge eating disorder is probably the most common eating disorder. Binge eating you may recall we studied as an element of bulimia nervosa. In

What is the central dogma of molecular biology, What is the central dogma o...

What is the central dogma of molecular biology? Succinctly (and clearly) describe the concept.

Determine the applications of biotin, Applications of Biotin Biotin is...

Applications of Biotin Biotin is mainly used in the preparation of injection, and also in the manufacture of vitamin B complex and multi-vitamin preparations. It is used in

What are the functions of fibers, Of which substance do elastic fibers of t...

Of which substance do elastic fibers of the connective tissue are made? What are some functions of these fibers? The elastic fibers are made of a protein called elastin. Ela

Mechanism of phloem transport, Mechanism of Phloem Transport The effic...

Mechanism of Phloem Transport The efficiency and magnitude of translocation of food material are evident from the annual yields of various crops and fruits. Now, the question

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