Purge Gas Plants
Plants for hydrogen and/or argon recovery from purge gas for subsequent feeding into the synthesis gas generation of the ammoniac production are offered by us.
We use our cryogenic technology which, for that purpose, has a number of advantages compared to alternative technologies such as e. g. the membrane technology. The cryogenic technology has in particular a higher economic efficiency, an unlimited service life within the expected life of a plant as well as a high degree of separation for inert gases.
A hydrogen production at different pressure levels enables a feeding of the synthesis gas into the synthesis gas compressor in intermediate stages.
Example 1
Hydrogen recovery from purge gas of an ammonia synthesis plant in Indonesia
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Customer:
Mitsubishi Heavy Industries, Ltd./Japan
Location:
Bontang (East-Kalimantan)/Indonesia
Process:
Adsorbtive drying,
cryogenic partial condensation
Capacity:
25,900 Nm³/h Purge Gas
(23.1 MMSCFD), 17,300 Nm³/h Hydrogen
(15.4 MMSCFD)
Purity:
90 Vol.-% Hydrogen
Scope of work :
Basic and detail engineering, procurement, supervision of start-up
Start-up:
2000
Example 2
Hydrogen recovery from purge gas of an ammonia synthesis plant in India
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Customer:
Nagarjuna Fertilizers and Chemicals Limited (NFCL)
Location:
Kakinada/India
Process:
NH3 scrubbing and regeneration, adsorptive drying, cryogenic partial condensation
Capacity:
30,000 Nm³/h Purge Gas
19,800 Nm³/h Hydrogen
800 kg/h Ammonia
Purity:
89 Vol.-% Hydrogen
97,5 Vol.-% Ammonia
Scope of work :
Basic and Detail engineering, procurement, supervision of construction and start-up
Start-up:
1998
