LANDSON / PETROCHEMICAL
PETROCHEMICAL PRODUCT RECOVERY
PETROCHEMICAL PRODUCT RECOVERY
PETROCHEMICAL PRODUCT RECOVERY
Recovery from highly corrosive acetic-acid streams with cross-flow SiC filtration instead of metallic membranes.
Recovery from highly corrosive acetic-acid streams with cross-flow SiC filtration instead of metallic membranes.
Recovery from highly corrosive acetic-acid streams with cross-flow SiC filtration instead of metallic membranes.
Treatment challenge
Treatment challenge
Treatment challenge
Recovery of high-value particles from aggressive petrochemical streams containing 87% acetic acid at temperatures up to 90°C required a durable alternative to metallic membranes.
Recovery of high-value particles from aggressive petrochemical streams containing 87% acetic acid at temperatures up to 90°C required a durable alternative to metallic membranes.
Landson SiC membrane solution
Landson SiC membrane solution
Landson SiC membrane solution
Landson SiC operates in cross-flow mode and permits direct flushing with hot acetic acid. Six SiC elements replace a comparison system using 243 Hastelloy membrane elements.
Landson SiC operates in cross-flow mode and permits direct flushing with hot acetic acid. Six SiC elements replace a comparison system using 243 Hastelloy membrane elements.
Reported performance and operating conditions
Reported performance and operating conditions
Reported performance and operating conditions
Filtration flux 750 LMH at 0.5 bar; particle recovery >99%; 46.8 m² SiC filtration area; operating temperature up to 90°C. Reported metallic comparison: 400 LMH at 1 bar and 48.6 m².
Filtration flux 750 LMH at 0.5 bar; particle recovery >99%; 46.8 m² SiC filtration area; operating temperature up to 90°C. Reported metallic comparison: 400 LMH at 1 bar and 48.6 m².
Technical configuration
Technical configuration
Technical configuration
6 SiC elements Ø146 × 865 mm, 0.2 µm average pore size · Cross-flow · 87% acetic acid · 90°C maximum.
6 SiC elements Ø146 × 865 mm, 0.2 µm average pore size · Cross-flow · 87% acetic acid · 90°C maximum.
Project status and significance
Project status and significance
Project status and significance
The reported system uses a 300 L filtration vessel versus 10,000 L for the compared metallic system. The document reports no SiC element replacements during the first five years of operation.
The reported system uses a 300 L filtration vessel versus 10,000 L for the compared metallic system. The document reports no SiC element replacements during the first five years of operation.
Interpreting the results
Interpreting the results
Interpreting the results
Figures reflect the project information in the Landson case-study materials and are application-specific.
Figures reflect the project information in the Landson case-study materials and are application-specific.
>99% Particle recovery · 750 LMH Flux at 0.5 bar
>99% Particle recovery · 750 LMH Flux at 0.5 bar