activated alumina, pseudoboehmite, Zibo XiangRun Environment Engineering Co., Ltd.

XR112 activated alumina removes fluoride from hydrocarbons in HF alkylation.  Low levels of hydrofluoric acid are filtered through alumina beds.

Alkylation is the process of reacting isobutene with either propylene or butylene to produce C3 or C4 alkylate.  This reaction is conducted in the presence of a strong acid which acts as a catalyst.  Hydrofluoric acid (HF acid) is one of the two accepted methods for producing alkylate in an oil refinery (sulfuric acid is the other).From the depropanizer, propane contaminated with HF acid is fed to a stripper and then catalytically defluorinated.The catalyst utilized for deflourination is XR112 activated alumina balls.  This alumina ball has a high surface area and a well-defined pore structure. 

? High surface area

? Large pore size and control over smaller pores

? High crush strength

Item	Unit	Technical requirement
Particle size	mm	3-5
AL2O3+Promotor	%	≥93
SiO2	%	≤0.10
Fe2O3	%	≤0.04
Na2O	%	≤0.40
Attrition Loss	%	≤0.08
Bulk density	g/ml	≥0.75
Surface area	㎡/g	≥320
Pore Volume	ml/g	≥0.45
Crushing Strength (N/Particle)	N/particle	≥180