Kinetics of liquid phase selective hydrogenation of methylacetylene and propadiene in C-3 streams

Küçük Resim Yok

Tarih

1998

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Soc Chemical Eng Japan

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

A study was made of kinetic parameters of methylacetylene (MA) and propadiene (PD) selective hydrogenation in liquid phase. C-3 cut, produced by naphtha steam cracking, contains 93.5 wt% propylene, 3.5 wt% propane, 2.5 wt% MAPD and lighter hydrocarbons. MA and PD are unwanted for the propylene conversion processes in the downstream plants and are removed by converting them to propylene itself. For this purpose, a palladium based commercial catalyst was used in a lab scale trickle-bed reactor, in the temperature range of 20-50 degrees C and in the WHSV range of 70-110 h(-1), at 2.53 MPa. It was found that MAPD conversion to propylene decreases as temperature and WHSV increase. In the reaction mixture, propylene itself also reacts to give propane. However, propylene conversion remains nearly constant in different WHSV and temperature values. Rate equations for MA, PD and propylene conversions were obtained by using experimental results. Kinetic parameters were calculated by taking into consideration external and internal mass transfer resistances.

Açıklama

1st National Chemical Engineering Congress -- SEP 13-16, 1994 -- ANKARA, TURKEY

Anahtar Kelimeler

methylacetylene, propadiene, trickle bed, liquid phase, hydrogenation

Kaynak

Journal of Chemical Engineering of Japan

WoS Q Değeri

Q2

Scopus Q Değeri

Cilt

31

Sayı

2

Künye