Catalytic device: What is the reason for the very low specific surface area of the catalyst? What are the influencing factors?
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This post was last edited by 328104062 on 2011-3-7 00:30. The specific surface area of our balancing catalysts remains very low, at around 70-80 only; however, their activity and conversion rate are high, with an activity level of 63 and a light product yield of 66%. Why is the specific surface area so low? What are the influencing factors?
Fresh catalyst or equilibrated catalyst?
Reply to 2# wuzhangzhu: Of course it’s a balancing agent
Looking at the activity of your catalysts, it’s basically the same as that of conventional equilibrizers. The yield is 63%; I wonder what the amount of balancing agent you use is? Or the conversion rate of the pure balance agent? In fact, these are also affected by the raw materials. Personally, I think your specific surface area is low; normal activity should be accompanied by more dust and better charring. If the burning is not proper, the activity is ruined.
Low specific surface area and high activity – perhaps the catalyst has broken down due to high-temperature heating
This is our catalyst analysis:
No. | Item Name | Batch Number | Specific Surface Area | Pore Volume | Particle Size 0–20μm | Particle Size 20–40μm | Particle Size 40–60μm | Particle Size 60–80μm | Particle Size 80–111μm | Execution Standards
GB/T 5816-1995 | Q/SY LS1220-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008
Unit | m²/g | mL/g | % (v/v) | % (v/v) | % (v/v) | % (v/v) | % (v/v)
1 | NONE | 2011-2-7 | 83 | 0.1 | 0 | 11.1 | 25.7 | 23.2 | 22.5
2 | NONE | 2011-2-14 | 74 | 0.1 | 0 | 11.6 | 25.9 | 23.1 | 22.3
Minimum Value | Maximum Value | Average Value
No. | Item Name | Batch Number | Particle Size >111μm | Ca | Cu | Fe | Na | Ni | Sb | Execution Standards
Q/SY LS1219-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008
Unit | % (v/v) | ppm | ppm | ppm | ppm | ppm | ppm
1 | NONE | 2011-2-7 | 17.5 | 1212 | 0 | 6391 | 1411 | 19370 | 8553
2 | NONE | 2011-2-14 | 17.1 | 1315 | 0 | 6741 | 1465 | 20280 | 8897
Minimum Value | Maximum Value | Average Value
No. | Item Name | Batch Number | Sn | V | Bulk Density | Compressed Density | Settled Density | Microactivity | Quality Assessment | Execution Standards
Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1222-2008 | Q/SY LS1222-2008 | Q/SY LS1222-2008 | Q/SY LS1225-2008
Unit | ppm | ppm | g/mL | g/mL | g/mL | %
1 | NONE | 2011-2-7 | 0 | 705 | 0.79 | 0.93 | 0.81 | 57 | Qualified
2 | NONE | 2011-2-14 | 0 | 742 | 0.79 | 0.92 | 0.81 | 56 | Qualified
Minimum Value | Maximum Value | Average Value
No. | Item Name | Batch Number | Specific Surface Area | Pore Volume | Particle Size 0–20μm | Particle Size 20–40μm | Particle Size 40–60μm | Particle Size 60–80μm | Particle Size 80–111μm | Execution Standards
GB/T 5816-1995 | Q/SY LS1220-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008 | Q/SY LS1219-2008
Unit | m²/g | mL/g | % (v/v) | % (v/v) | % (v/v) | % (v/v) | % (v/v)
1 | NONE | 2011-2-7 | 83 | 0.1 | 0 | 11.1 | 25.7 | 23.2 | 22.5
2 | NONE | 2011-2-14 | 74 | 0.1 | 0 | 11.6 | 25.9 | 23.1 | 22.3
Minimum Value | Maximum Value | Average Value
No. | Item Name | Batch Number | Particle Size >111μm | Ca | Cu | Fe | Na | Ni | Sb | Execution Standards
Q/SY LS1219-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1311-2008
Unit | % (v/v) | ppm | ppm | ppm | ppm | ppm | ppm
1 | NONE | 2011-2-7 | 17.5 | 1212 | 0 | 6391 | 1411 | 19370 | 8553
2 | NONE | 2011-2-14 | 17.1 | 1315 | 0 | 6741 | 1465 | 20280 | 8897
Minimum Value | Maximum Value | Average Value
No. | Item Name | Batch Number | Sn | V | Bulk Density | Compressed Density | Settled Density | Microactivity | Quality Assessment | Execution Standards
Q/SY LS1311-2008 | Q/SY LS1311-2008 | Q/SY LS1222-2008 | Q/SY LS1222-2008 | Q/SY LS1222-2008 | Q/SY LS1225-2008
Unit | ppm | ppm | g/mL | g/mL | g/mL | %
1 | NONE | 2011-2-7 | 0 | 705 | 0.79 | 0.93 | 0.81 | 57 | Qualified
2 | NONE | 2011-2-14 | 0 | 742 | 0.79 | 0.92 | 0.81 | 56 | Qualified
Minimum Value | Maximum Value | Average Value