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C306 medium and low pressure methanol synthesis catalyst
was developed by Research Institute of Nanjing Chemical Industrial
Group. It is widely used in medium and low pressure methanol
plants with natural gas, coal, oil and petroleum associated
gas as raw material. The key of technology is the preparation
of active matrix and thermostable supporter, so that zinc-copper
matrix with high activity at low temperature can be supported
on aluminum oxide carrier with high thermostability and large
surface area. The catalyst passed the appraisal of Sinopec
on Dec.14, 2000. The appraisal confirms that the catalyst
has high activity, strength, stability, thermostability and
adaptability of feedstock; and is superior to other domestic
ones and equal to ones abroad.
The catalyst won the First Prizes of Jiangsu Provincial
Scientific and Technological Progress in 2001.
Physical and Chemical Properties
1. Chemical Composition: CuO, ZnO and Al2O3
2. Physical Properties
Appearance: Black spheric cylinder with metallic luster
Size: Φ5mm×(4～5)mm
Bulk density: 1.4～1.6kg/L
Specific surface: 80 ～100m2/g
Radial crush strength: ≥185N/cm
3. Quality Index
Measured up to the standard of Q/SHNJ144-2002.
Under the standard condition:
Initial activity(hourly output of methanol per ml catalyst):
≥1.2g/ml.h
Activity after superheat((hourly output of methanol per
ml catalyst):≥0.9g/ml.h
4. Operation Conditions
Temperature: 200～300℃
Optimal temperature: 210～260℃
Pressure: 3.0～15.0MPa
Space velocity: 4000～20000h-1
Commercial Application
Since its first commercial application in Jiangsu Xinya
Chemical Industrial Group Co. in Dec. 1997, C306 catalyst
has been rapidly spreading in China. Now it is used in 19
low-pressure methanol synthesis units in 16 plants. The application
shows that it has satisfied activity, selectivity and strength
and brings about an increase in output of methanol. When it
was used in Chongqing Weiming Chemical Industrial Co. Ltd,
hourly output of methanol per ml catalyst reached 0.64 g/ml.h.
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