Method for catalyzing complete hydrogenation of polyalphaolefin into saturated alkane
A technology of complete hydrogenation and α-olefins, which is applied in the field of fine chemicals, can solve the problems of double bond destruction, quality and performance degradation, loss of meaning, etc., and achieve the effect of simple preparation process, good stability and low cost
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Embodiment 1
[0023] Ni (1%) / Nano Al 2 O 3 The catalyst is prepared as follows:
[0024] Weigh the weight ratio as nickel nitrate: water: nano alumina = 0.5:13.3:10, and dissolve it with distilled water. Then add nano-alumina, and sonicate in an ultrasonic machine for 5-60 minutes after being completely mixed. After the mixing is complete, ventilate and age at room temperature for 5-24 hours. Then it is ventilated and dried at 70°C to obtain the dried mixture and then heated and roasted in a muffle furnace at a heating temperature of 400-600°C. The roasting time is 1-10h. Before use, put the catalyst in a mixture of hydrogen and nitrogen (H 2 Content 1%-100%) in the presence of 200 oC -500 o Reduction in C range to obtain Ni / Al 2 O 3 catalyst.
[0025] Add 10 grams of Ni (1%) / nano Al 2 O 3 The catalyst is put into a stainless steel reaction tube with a diameter of 8 mm, and the polyalphaolefin (C 100 H 200 ) After mixing with hydrogen, pass it into the reaction tube and enter the catalytic ...
Embodiment 2
[0027] Ni (3%) / Nano Al 2 O 3 The catalyst is prepared as follows:
[0028] Weigh the weight ratio as nickel nitrate: water: nano alumina = 1.5: 13: 10, and dissolve it with distilled water. Then add nano-alumina, and sonicate in an ultrasonic machine for 5-60 minutes after being completely mixed. After the mixing is complete, ventilate and age at room temperature for 5-24 hours. Then it is ventilated and dried at 70°C to obtain the dried mixture and then heated and roasted in a muffle furnace at a heating temperature of 400-600°C. The roasting time is 1-10h. Before use, put the catalyst in a mixture of hydrogen and nitrogen (H 2 Content 1%-100%) in the presence of 200 oC -500 o Reduction in C range to obtain Ni / Al 2 O 3 catalyst.
[0029] Add 10 grams of Ni (3%) / nano Al 2 O 3 The catalyst is put into a stainless steel reaction tube with a diameter of 8 mm, and the polyalphaolefin (C 80 H 160 ) After mixing with hydrogen, pass it into the reaction tube and enter the catalytic b...
Embodiment 3
[0031] Ni (5%) / Nano Al 2 O 3 The catalyst is prepared as follows:
[0032] Weigh the weight ratio as nickel nitrate: water: nano alumina=2.5:12.6:10, and dissolve it with distilled water. Then add nano-alumina, and sonicate in an ultrasonic machine for 5-60 minutes after being completely mixed. After the mixing is complete, ventilate and age at room temperature for 5-24 hours. Then it is ventilated and dried at 70°C to obtain the dried mixture and then heated and roasted in a muffle furnace at a heating temperature of 400-600°C. The roasting time is 1-10h. Before use, put the catalyst in a mixture of hydrogen and nitrogen (H 2 Content 1%-100%) in the presence of 200 oC -500 o Reduction in C range to obtain Ni / Al 2 O 3 catalyst.
[0033] Add 10 grams of Ni(5%) / nano Al 2 O 3 The catalyst is put into a stainless steel reaction tube with a diameter of 8 mm, and the polyalphaolefin (C 60 H 120 ) After mixing with hydrogen, pass it into the reaction tube and enter the catalytic bed ...
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