Catalytic Conversion of Acetone to Monoaromatic Chemicals using HZSM-5

The effects of process variables (temperature, space velocity, water addition and Si/Al ratio) on the conversion of acetone to aromatic chemicals have been investigated. The reaction is carried out by fixed bed reactor at an atmospheric pressure to examine the activity and selectivity of HZSM-5. The results show that HZSM-5 exhibited a high active and a shape-selective catalyst for the formation of monoaromatic chemicals. The favourable condition for acetone aromatization is found i.e. at 673 K with space velocity of 4 h, the acetone conversion is close to 100 % and monoaromatic selectivity is approximately 71 %. There is no effect of water existence in the acetone feed on the aromatization reaction process, making the process will be simplified. A significant effect of Si/Al ratio on the activity of HZSM-5 on the durability reaction test for 10 h reaction in a fixed bed reactor at 673 K, space velocity of 4 h. The acetone conversions with Si/Al ratio of 25 were much better than those of other ratios during 10 h of reaction. Over HZSM-5 with Si/Al ratio of 75 or 100, the acetone conversion and the monoaromatic selectivity were gradually decreased after 10 h of reaction. It can be concluded that the acetone conversion to monoaromatic chemicals requires a high acid density. Index Termacetone conversion, monoaromatic, HZSM-5,