ACH-10 acetylene hydrogenation catalyst is used for selective hydrogenation of acetylene to ethylene.
ACH-10 catalyst used for selective hydrogenation of acetylene to ethylene has been succefully used in several industrial units.it is suitable for acetylene conversion in both two-stage process and three-stage process.
Physical and chemical properties:
item
target
appearance
Pale-brown spheresoxidation state
Particle sizemm
Φ2.54.0
Bulk density(g/ml)
0.70
Specific Surface area(m2/g)
40±10
Crushing strength (N/particle)
70
Chemical compositions
Pd-D/Al2O3(D refers to second component)
Pd contentwt%
0.040
2.reference operating conditions:
Space velcity 2000-8000h-1
Hydrogen to acetylene ratioV/V 0.8-2.61
Outlet acetylene content ≤1×10-6
520
Regeneration cycle 2-6months
Service lifetime 2-5years
3.operating condition claims
3.1 when the content of acetylene reaches 1.2-2.5%,three-stage hydrogenation is necessary.
First reactor:
pressure 1.0-4.0Mpa
inlet temperature 35-90
space velocity 2000-8000h-1
H2 to acetylene ratiov/v 0.8-1.21
Acetylene conversion rate 30-55%
Ethylene plus 0.00-0.50 %
Regenaeration cycle 2months min
Catalyst service lifetime 2-5years
Second-reactor
pressure 1.0-4.0Mpa
inlet acetylene 0.60-1.1 %
inlet temperature 40-90
space velocity 2000-8000h-1
H2 to acetylene ratiov/v 0.9-1.41
Acetylene conversion rate 60-90%
Outlet acetylene 0.10-0.30%
Regenaeration cycle 3-6months
Catalyst service lifetime 2-5years
Third reactor
pressure 1.0-4.0Mpa
inlet acetylene 0.10-0.3%
inlet temperature 40-90
space velocity 2000-8000h-1
H2 to acetylene ratiov/v 1.5-2.61
Outlet acetylene 1×10-6 max
Regenaeration cycle 4-7months
Catalyst service lifetime 4-6years
