Biodiesel Production

Fully automatic sensor cleaning and calibration even at 2000 mm immersion depth.

pH Measurement in Transesterification

Biodiesel or FAME (Fatty Acid Methyl Ester) is produced from mostly vegetable oils and serves as fuel for diesel engines. In the EU, mainly used cooking oils and rapeseed oil are used, as well as palm oil, sunflower oil and soybean oil to a lesser extent. In the first and most important process step, transesterification takes place, the pH of which must be precisely controlled. This produces the crude biodiesel in a mixture with glycerol, which is separated and purified for further uses. The crude biodiesel is washed and purified and can then be used as fuel.

Challenges

The pH value in the transesterification must be pH 9.5.
Temperature: 60 °C.
Installation in hazardous area (Ex).
The pH sensor is sometimes strongly affected by the medium in the transesterification reaction and must be cleaned/calibrated and adjusted regularly.
The installation position of the pH measurement can only be done through the reactor lid and requires a large immersion depth

Why Knick ?

- Reduced maintenance costs thanks to the fully automated cCare system.
- Ceramic sealing of Ceramat ensures minimal maintenance.

SE554 pH Sensor | Memosens | 120 mm | Ex | For very high ionic strength media

Product number:

SE554X/1-NMSN

WA160 Ceramat Retractable Immersion Fitting | Ceramic lock-gate sealing | Pneumatic | Immersion depth up to 2000 mm

Product number:

WA160

Related Industries and Applications

Oil and Gas

With automatic maintenance systems to longer sensor life, even with sticky hydrocarbons and in explosive environments.

Refinery Wastewater

pH Measurement in Contaminated Wastewater. Purification, neutralization and reuse - treatment of wastewater is as diverse as its impurities.

Monitoring of Refinery Wastewater in Sour Water Strippers

pH Measurement in Sour Water

Hydrosulfurization (HDS)

pH Measurement in the reprocessing of mineral oil products

Isobutane and Propane Dehydrogenation

pH, ORP and conductivity measurements in condensate

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