Open AccessNanosized Catalysts in the Process of Hydrogenating Acetylene
Author(s) -
С.К. Танирбергенова,
Nurzhamal Zhylybayeva,
S. Zh. Tairabekova,
D. A. Tugelbayeva,
Gulmira Naurzbayeva,
G. M. Moldazhanova,
B. A. Mansurov
Publication year - 2018
Publication title -
eurasian chemico-technological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 9
eISSN - 2522-4867
pISSN - 1562-3920
DOI - 10.18321/ectj730
Subject(s) - acetylene , catalysis , ethylene , yield (engineering) , materials science , zeolite , hydrogen , raw material , inorganic chemistry , ethylene oxide , chemical engineering , chemistry , organic chemistry , metallurgy , copolymer , polymer , engineering
Hydrogenating process of the acetylene to ethylene using automated flow catalytic installation at nanoscaled catalysts Ni, Co and carriers at a pressure of 5 atm was studied. The actions of carriers and nanosized catalysts during hydrogenation reaction of acetylene to ethylene at low temperatures in the range from 50–120 °С were analyzed. With ratio of С2Н2:Н2 being equal to (1:2), at 80 °С the aluminum oxide carrier exhibits an activity, conversion of acetylene makes up 70%, when using zeolite 3A it is 63%. When the temperature rises to 120 °С, the aluminum activity is decreasing and conversion is 53%. However, zeolite exhibits its activity at high temperatures, at a temperature of 120 °С conversion of acetylene reaches to 73.5%. It is shown that with increasing of hydrogen ratio, the ethylene yield increases from 5 to 10.7% using catalyst 5% Ni/3A. In addition, in reaction of acetylene hydrogenation there are not formed waste products. For this process, the optimum reaction temperature is 80 °С, feedstock ratio (1:3) is positive, where the ethylene yield increased up to 16.7% and at catalyst to 5% Co/3A.