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

Explain the before abutment connection - implant failures, Before Abutment ...

Before Abutment Connection There can be wound dehiscence, and the presence of signs of infection such as swelling, fistula, pain prior to stage to surgery. It is important t

What is the name of the larval stage of polychaetes, Q. Is the embryonic de...

Q. Is the embryonic development in earthworms indirect or direct? The embryonic development is direct because in earthworms there is no larval stage. Q. What is the name of

Phobias, PHOBIA S - Common phobias for - Spiders Lizards Snak...

PHOBIA S - Common phobias for - Spiders Lizards Snakes Cockroach Crowded places Vast open places Closed small chambers.

Explain the cultural practices of single crop, Explain the Cultural Practic...

Explain the Cultural Practices of single crop Continuous cultivation of a single crop over years on the same site causes accumulation of a particular group of microbes, which d

Aschelminthes, In what part of the human body ASchelminthes found?

In what part of the human body ASchelminthes found?

Explain exposure assessment, Exposure  assessment Estimates of dietary...

Exposure  assessment Estimates of dietary intakes of food additives, residues of pesticides and veterinary drugs and contaminants require information on the consumption of rele

Oxusome, structure of oxysome

structure of oxysome

State the term - antecedent and consequence control, Antecedent and consequ...

Antecedent and consequence control Therapy and consultation cannot be effective unless the behaviours to be changed are understood within a particular context. The process of u

Describe briefly about vitamin B2, Vitamin B 2 (Riboflavin) Riboflavin...

Vitamin B 2 (Riboflavin) Riboflavin is a yellow to orange-yellow, crystalline powder of faint odour and intensely bitter taste. Its solubility in water is very slight and depe

What is osseointegration, What is Osseointegration Osseointegration was...

What is Osseointegration Osseointegration was the hallmark of success in implant dentistry in the 1980s. It was believed that an implant was successfully integrated when there

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