Nitrogen and phosphorus co-doped activated carbon induces high density Cu+ active center for acetylene hydrochlorination
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Nitrogen and phosphorus co-doped activated carbon induces high density Cu+ active center for acetylene hydrochlorination
Nitrogen and phosphorus co-doped activated carbon induces high density Cu+ active center for acetylene hydrochlorination
中国化学工程学报(英文版)2023年59卷第7期 页码:193-199
Affiliations:
1. College of Chemistry and Chemical Engineering, Yantai University,Yantai,China,264004
2. School of Chemistry and Chemical Engineering, Shihezi University,Shihezi,China,832000
Author bio:
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DOI:
中图分类号:
纸质出版:2023
Accepted:
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Fei Li, Xuemei Wang, Pengze Zhang, 等. Nitrogen and phosphorus co-doped activated carbon induces high density Cu+ active center for acetylene hydrochlorination[J]. 中国化学工程学报(英文版), 2023,59(7):193-199.
active center for acetylene hydrochlorination[J]. 中国化学工程学报, 2023, 59(7): 193-199.
Fei Li, Xuemei Wang, Pengze Zhang, 等. Nitrogen and phosphorus co-doped activated carbon induces high density Cu+ active center for acetylene hydrochlorination[J]. 中国化学工程学报(英文版), 2023,59(7):193-199.DOI:
active center for acetylene hydrochlorination[J]. 中国化学工程学报, 2023, 59(7): 193-199.DOI:
Nitrogen and phosphorus co-doped activated carbon induces high density Cu+ active center for acetylene hydrochlorination
摘要
Abstract
This work aims to solve the problems of low reaction activity of Cu-based catalysts and agglomeration of active centers in acetylene hydrochlorination. Cu-based catalysts supported by NP co-doped activated carbon (AC) with different content (
m
Cu-
x
NP/AC) were manufactured and applied in the acetylene hydrochlorination reaction. It was found that the doping of carriers N and P induced the transformation of Cu
2+
to Cu
+
and the catalytic activity was markedly improved. Under the optimal reaction temperature of 220 ℃
the gas hourly space velocity (GHSV) of C
2
H
2
was 90 h
-1
and
V
HCL
:
V
C
2
H
2
was 1.15. The initial activity of the 5%Cu-30NP/AC catalyst reached 95.59%. Through some characterization methods showed the addition of N and P improved the dispersion of Cu in carbon
which increased the ratio of Cu
+
/Cu
2+
. The measurement results confirmed that the chemisorption capacity of
m
Cu-
x
NP/AC for C
2
H
2
decreased slightly
and the chemisorption capacity for HCl increased significantly
which was the reason for the i
ncreased activity of the catalyst. The conclusion provides a reference for the development of acetylene hydrochlorination Cu catalyst.
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