Hydrosulfurization (HDS)

Special solutions for special challenges - highly corrosive media we face with experience and a large portfolio for a measuring loops completely from one source.

pH Measurement in the Reprocessing of Mineral Oil Products

Naturally occurring mineral oil products contain sulfur compounds as well as other contaminants, which have to be removed in a first processing step. One common process is hydrodesulfurization. In this process, the sulfur components are converted to hydrogen sulfide using hydrogen and a nickel/molybdenum or cobalt/molybdenum catalyst, which is separated in the next step. In the meantime, the gas is dissolved in an aqueous phase, whereby the pH value must be regulated.

Challenges

Aqueous phase with hydrogen sulfide offers high corrosion potential pH value must be between 6-8
Temperature: 40-50 °C
Pressure: 4 bar
Hydrogen sulfide affects the reference of the pH sensor

Why Knick ?
By switching to the externally pressurized SE557-X/1-electrode, the previous sensor replacement rate of 1 per month was reduced to 3 in 1.5 years. This resulted in a cost saving of almost 90 % for the material alone and additionally by saving the working time for the monthly sensor change.

Matching Products

Stratos Pro A201 MSPH pH/ORP Transmitter | Memosens Sensors | Ex Zone 2 | HART | 2x 4 ... 20 mA Outputs

Product number:

A201B-MSPH-1

ARI106 (H) Inline Fitting | Modular | Stainless steel or highly resistant plastic | For 12-mm sensors | For chemical and hygienic applications

Product number:

ARI106

Product number:

SE557X/1-NMSN

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