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

Week 5 Review Sheet I, How does true motility differ from brownian movement...

How does true motility differ from brownian movement? What morphological structre is responsible for bacteria motility? Why is the wet preparation discarded in disinfectant s

Why does geographical isolation lead to speciation?, Why does geographical ...

Why does geographical isolation lead to speciation? The Geographical isolation between groups of the same species leads to formation of a new species since it disallows crossin

Explain in brief about baby blues, Regarding the article "Baby Blues" which...

Regarding the article "Baby Blues" which of the following is a false statement? A. Children, whose mothers underwent severe stressful episodes during pregnancy, have higher tha

What is oral rehydration therapy, Q. What is Oral Rehydration Therapy? ...

Q. What is Oral Rehydration Therapy? Oral Rehydration Therapy (ORT) refers to providing fluids and/or oral rehydration salt solutions to the patient. An oral rehydration soluti

Which type neurons work for spinal arch reflex, Q. Which are the kinds of n...

Q. Which are the kinds of neurons that participate in the spinal arch reflex? Where are their cell bodies situated? In the arch reflex first a sensory neuron located in the gan

Explain the autonomic neuropathy, Explain the Autonomic neuropathy It l...

Explain the Autonomic neuropathy It leads to dry skin due to decreased sweating. Dryness of the skin leads to cracking which makes entry of infection in to the deeper plane eas

Which phase of the menstrual cycle does nidation occur, Q. What is nidation...

Q. What is nidation? In which phase of the menstrual cycle does nidation occur? Nidation is the implantantion of the embryo in the uterus and Nidation takes place around the 7t

How does phosphocreatine act in the muscle contraction, How does phosphocre...

How does phosphocreatine act in the muscle contraction and relaxation? Phosphocreatine is the main means of energy storage of the muscle cells. During relaxed periods ATP mo

Illustrate the factors of human skin, Skin The skin or integument is th...

Skin The skin or integument is the outer covering of the body and have appendages i.e. nails and hairs. The outer layer of skin is known as epidermis; the inner layer is dermis

Define hexokinase, Hexokinase, that catalyzes the first irreversible step o...

Hexokinase, that catalyzes the first irreversible step of glycolysis, is inhibited by glucose 6-phosphate.   Thus  when  PFK  is  inhibited and  fructose  6-phosphate builds  up an

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