Chemical Engineering Plant Economics
Which of the following is the costliest source of getting hydrogen on commercial scale for the manufacture of nitrogeneous fertiliser?

Coke oven gas
Alectrolysis of water
Coal gasification
Steam reforming of naphtha

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Chemical Engineering Plant Economics
Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of the plant = original cost x (index value/(index value at original cost was obtained) The most major component of this cost index is

Pumps and compressor
Fabricated equipment and machinery
Process instruments and control
Electrical equipments and material

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