Study of Coke Formation in 1,3-butanediol Dehydration Reaction

ANDREA RODRIGUEZ; MARIA EUGENIA SAD; AMIR ASTAFAN; MEHRAD TARIGHI; PINARD, LUDOVIC; CRISTINA PADRÓ

Conferencia; FEZA 2021; 2021

British Zeolite Association

1,3-butadiene (BD) is an important industrial intermediate used for synthetic rubber, elastomers and polymeric resins manufacture [1]. BD is mainly obtained as a by-product of steam cracking of naphtha and gas oil for ethylene and propylene production. However, in recent years the production of ethylene by naphtha cracking has been partly replace by lighter raw materials coming from shale gas and consequently the butadiene from non-renewable resources has decreased. Therefore, it is highly desirable to find an alternative route starting from renewable feedstock. Between the alternatives proposed recently, the dehydration of 1,3 butanediol (1,3BDOL) using acid catalysts is becoming attractive for bio-BD production with high yields [2].However, the main drawback of this alternative is the formation of carbonaceous deposits that deactivate the catalysts. Therefore, the objective of this work was to study the coke formed during the 1,3-BDOL dehydration and how this affect the catalytic performance.