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

Define comprehensive dietary management regime of patient, Define Comprehen...

Define Comprehensive Dietary Management Regime of Patient? A comprehensive dietary management regime of the patient should be based on the patient profile as gathered pre and p

Define reaction of fehling solution with lactose, Define Reaction of Fehlin...

Define Reaction of Fehling solution with lactose? After complete reduction of cupric ions, the indicator is reduced by lactose to a leuco compound, restoring the red colour of

Is there respiratory pigment in the annelid blood, Q. Is there respiratory ...

Q. Is there respiratory pigment in the annelid blood? The blood in beings of the phylum Annelida contains the respiratory pigment hemoglobin the same found in chordates and oth

Determine about the trichromatic vision, Determine about the Trichromatic v...

Determine about the Trichromatic vision Trichromatic vision is the terminology used for normal vision, those who require aU' three primary colours to make a match with an unkno

Explain armamentarium, Armamentarium 1. Denture duplicator or a modifie...

Armamentarium 1. Denture duplicator or a modified plastic soapdish. (A plastic large soapdish with a base and cover can be adapted by drilling 2 mm holes interspersed and cover

Nutrition, define alimentary canal

define alimentary canal

Define diet for treatment for protein energy malnutrition, Define Diet for ...

Define Diet for Treatment for Protein Energy Malnutrition? Treatment of cases of kwashiorkor or marasmus involves mainly providing appropriate nutrition support. The child shou

Explain about the essential fat in humans, Explain about the essential fat ...

Explain about the essential fat in Humans? For the body to function normally, certain amount of body fat is required. This is called essential fat. For women, average amount of

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