Corrosion inhibition of three α,β-unsaturated carbonyl compounds on N80 steel at high temperature and in concentrated acid medium was evaluated, and the inhibition mechanism was investigated. The results proved that...Corrosion inhibition of three α,β-unsaturated carbonyl compounds on N80 steel at high temperature and in concentrated acid medium was evaluated, and the inhibition mechanism was investigated. The results proved that both cinnamaldehyde and benzalacetone had an evident anticorrosion effect and could reduce the corrosion of steel effectively in acid medium, α,β-unsaturated carbonyl compounds with a benzene ring structure had good adsorption on steel surface. The experiments proved that polymerization of α,β-unsaturated carbonyl compounds on the steel surface at a high temperature and in concentrated acid medium resulted in a good corrosion inhibiting effect, which was attributed to the structures of α,β-unsaturated carbonyl compounds.展开更多
A study is carried out on the filtration effect of two common filters made from different materials on the volatile carbonyl compounds in cigarette mainstream smoke.The results show that the order of filtration effect...A study is carried out on the filtration effect of two common filters made from different materials on the volatile carbonyl compounds in cigarette mainstream smoke.The results show that the order of filtration effect of acetate filter on the volatile carbonyl compounds in cigarette mainstream smoke is formaldehyde;methyl ethyl ketone,acrolein,butyraldehyde,crontonaldehyde,acetone and acetaldehyde;the order of filtration effect of polypropylene filter on the volatile carbonyl compounds in cigarette mainstream smoke is methyl ethyl ketone,formaldehyde,acrolein,butyraldehyde,crotonaldehyde,acetone and acetaldehyde.The filtration effect of two different filters is compared.It finds that acetate filter is better than polypropylene filter in filtration effect on the volatile carbonyl compounds in cigarette mainstream smoke.展开更多
文摘Corrosion inhibition of three α,β-unsaturated carbonyl compounds on N80 steel at high temperature and in concentrated acid medium was evaluated, and the inhibition mechanism was investigated. The results proved that both cinnamaldehyde and benzalacetone had an evident anticorrosion effect and could reduce the corrosion of steel effectively in acid medium, α,β-unsaturated carbonyl compounds with a benzene ring structure had good adsorption on steel surface. The experiments proved that polymerization of α,β-unsaturated carbonyl compounds on the steel surface at a high temperature and in concentrated acid medium resulted in a good corrosion inhibiting effect, which was attributed to the structures of α,β-unsaturated carbonyl compounds.
文摘A study is carried out on the filtration effect of two common filters made from different materials on the volatile carbonyl compounds in cigarette mainstream smoke.The results show that the order of filtration effect of acetate filter on the volatile carbonyl compounds in cigarette mainstream smoke is formaldehyde;methyl ethyl ketone,acrolein,butyraldehyde,crontonaldehyde,acetone and acetaldehyde;the order of filtration effect of polypropylene filter on the volatile carbonyl compounds in cigarette mainstream smoke is methyl ethyl ketone,formaldehyde,acrolein,butyraldehyde,crotonaldehyde,acetone and acetaldehyde.The filtration effect of two different filters is compared.It finds that acetate filter is better than polypropylene filter in filtration effect on the volatile carbonyl compounds in cigarette mainstream smoke.
