Multi tubular loaders

The tubular division of Mourik is a specialized contractor for catalyst changes in tube reactors. Depending on design and application, a typical tubular reactor may have up to 30,000 tubes, often with small diameters and lengths to 13 meters. Each tube is filled with one or more layers of catalyst of different type and shape. The most important step in a tubular catalyst change-out is the loading of fresh catalyst. It will have a direct effect on catalyst life and reactor performance. Loading can be done by machines, templates or inserts. Our unique loading machines (G6 and G7 type) are able to load multiple tubes with the same loading quality. For more information please don't hesitate to contact our office.

Multiple (real time) computerized Pd-measuring equipment

Loaded catalyst tubes are checked for density and pressure drop (Pd) and corrected where necessary. Mourik uses it's own, in-house developed and patented pressure drop measurement equipment. This will measure and record up to eight readings simultaneously. Digital readings ensure accurate measurement and make progress control and qualitative reporting possible.

Pressure drop (Pd)

In order to determine the homogeneity of the catalyst bed, the pressure drop for each tube is measured. To ensure that all tubes are measured in an identical manner, Mourik uses specially designed Pd measuring equipment in combination with in-house manufactures measuring rods. Dry air is always used for these measurements.

Pressure drop readings are taken:

  1. To calculate the permitted spread across the filled tubes. Values measured diagonally across 10% of the tubes, produces the basis for this calculation.
  2. To measure all of the tubes and where necessary correct to within the determined range.
  3. To calculate the mean value of the filled tubes.
  4. During the filling of the thermocouple tubes to achieve the calculated value as accurately as possible.

Mourik measures the pressure-drop over each tube with use of our Pd device boxset. Each tube is checked by measuring the Pd, this data and correlating position is stored in a computer and will be used for reporting.