Description

Flow measurement of natural gas intake

Requirements

  • High flow rate
  • Very low pressure loss

Description

Flow measurement of fresh air intake

Requirements

  • Very high flow rate
  • Low pressure loss

Description

Scrubber feed pressure measurement

Requirements

  • Compressor control
  • process monitoring

Description

Scrubber feed DP flow measurement

Requirements

  • Compressor control
  • process monitoring

Description

Sump level measurement

Requirements

  • Level control

Description

Level measurement in the CO2 scrubber

Requirements

  • Bypass chamber
  • Amine poses difficult process conditions
  • Adapted bypass materail

Description

N2, H2 pressure measurement

Requirements

  • Compressor control
  • process monitoring

Description

Temperature measurement of the circulating CO2 scrubbing agent

Requirements

  • Materials adapted to amines
  • Accurate desorption temperature

Description

N2, H2 flow measurement

Requirements

  • Compressor control
  • process monitoring

Description

Integrated control valve with flow, pressure and temperature measurement of water

Requirements

  • Local measurement and control of flow
  • High control quality
  • Advanced digitalisation strategies (digital factory)

Overview

Synthesis gas production in fertiliser production

Synthesis gas is produce by passing natural gas through the catalyst at very high temperatures

Synthesis gas, for example a mixture of hydrogen and nitrogen, is an important preliminary product for ammonia production and thus subsequent fertiliser production. Synthesis gas is obtained from the catalytic conversion of natural gas with water vapour and air in the catalyst at very high temperatures. This produces a gas mixture of hydrogen and nitrogen at a ratio of 3:1. Most synthesis gas production processes involve relatively elaborate and complex purification and treatment of the synthesis gas mixture downstream of the reactor. This is basically the CO2 separation in the gas scrubber, where the carbon dioxide is removed from the mixture by an alkali scrubber, e.g. using amine.

KROHNE offers high-precision ultrasonic flowmeters for this, which reliably measure the flow of process gases in the measuring tube without moving parts. They do not cause any pressure loss, are low-maintenance and highly durable. Level transmitters with guided radar are available for monitoring CO2 gas scrubbing. There are also industrial resistance thermometers with interchangeable measuring inserts for measuring the temperature of the circulating scrubbing agent.

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