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Hydrogen Production Technology from Coke Oven Gas
There are two main processes for hydrogen production from coke oven gas: direct purification of coke oven gas combined with PSA separation and purification of hydrogen, and steam reforming of coke oven gas plus PSA separation for hydrogen extraction. At present, the mainstream process is to directly separate and purify hydrogen by pressure swing adsorption after compression and purification of coke oven gas.
■ Technical Features
High purification degree; sulfur content in the flue gas of recycled furnace gas meets national standards without carbon supplementation and hydrogen enrichment; low purification cost. Low reaction temperature, no circulating gas and no need for steam supplementation. High recovery rate, high purity and low operating cost.■ Main Performance Indicators
· Coke oven gas treatment capacity: 1000~460000 Nm³/h· Naphthalene content in purified gas: ≤ 1 mg/Nm³
· Tar content in purified gas: ≤ 1 mg/Nm³
· Sulfur content in purified gas: ≤ 0.1 mg/Nm³
■ Scope of Application
Natural gas production from industrial off-gases including coke oven gas and calcium carbide off-gas.■ Process Flow Diagram
