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许多金属或合金能与氢化合而成金属氢化物.金属氢化物可在较低温度下吸收氢,而在较高温度下放出氢.利用这一点可从含氢原料气中回收氢气.一、吸收剂较早时用钙或稀有碱土金属与镍或钴的合金作吸收剂.这些吸收剂在适当的条件下很容易形成氢化物.后来用RM_5型(R为稀土金属,M为过渡金属)合金.这种合金在重复吸收和解吸氢气的过程中容易形成粉末,使床层压力降增高.Blytas用五镍化
Many metals or alloys can be combined with hydrogen to form metal hydrides. Metal hydrides can absorb hydrogen at lower temperatures and hydrogen at higher temperatures. With this, hydrogen can be recovered from the hydrogen-containing feed gas, Absorbents used earlier calcium or rare earth alkaline metal and nickel or cobalt alloy absorbers. These absorbents under the appropriate conditions is easy to form hydride later RM_5 type (R is a rare earth metal, M is a transition metal) Alloy. This alloy in the process of absorbing and desorbing hydrogen gas is easy to form a powder, the bed pressure drop increased.Blytas five nickel