Hobre Search by Measurement

We provide measurement principles that ensures stable readings of moisture and H2S in gasses, or techniques to measure the Wobbe Index, CARI, Heating Value, BTU in flare and fuel gas. Our newest unique PA-TDL technology measures continuous H2S, CO2 and H2O in gas streams, and our XRF technology can measure up to 15 elements in oil by one single analyzer. As well we provide a successful measurement technique for the safety & efficiency in powder drying processes.

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Wobbe Index, Heating Value, BTU, Specific Gravity

The technology for measuring the Wobbe Index, CARI, Heating Value, BTU or specific gravity is based on the measurement of the amount of air required for the complete combustion of sample gas. Referred to in ASTM D4891 -13 and ISO 15971. Depending on the tasks for measurement, Hobré offers two variations: a continuous version designed for maximum performance in terms of response time and repeatability, or an injection version which offers a robust solution to the measurement of even the most challenging gas samples, such as sour gas and flare gas. With a fast response time within 5 seconds, this measurement principle is capable of handling the most challenging applications within indoor and outdoor installations in ambient temperatures of 5⁰C – 40⁰C degrees / 41⁰F – 104 ⁰F (or down to -20⁰C /-4⁰F. Typical applications are (natural) gas blending, fired heaters and gas turbine control. With almost 40 years of field experience, this measurement principle of Hobré fits in the design and supply of all complete analyzer solutions.

H2S, H2O & CO2 measurement by PA-TDL technology

Hobré’s unique PA-TDL technology (Photo Acoustics measurement excited by a Tunable Diode Laser) can simultaneously measure H2S, H2O and CO2 in liquids and gases. This robust and innovative photo acoustic technology in process analyzers, is suitable for applications ranging from H2S analysis in well fluids, through separation and treatment, to sales gas and oil quality metering.

The PA-TDL technology has been developed to fully utilize the high precision of modern Tunable Diode Lasers, in combination with low-noise, and high-quality microphones. Different components are excited by tuning the laser diode to corresponding absorption and specific background wavelengths. Measuring the photo acoustic effect (excited by the TDL), reflects in to a continuous measurement of H2S, H2O and CO2 in liquid and gas streams. Analyzing in the low ppm range is achieved by using a differential measurement method. This makes the analyser almost independent of the gas matrix to be measured in.

With a measuring cell of only 10cm the absence of moving parts and multi-pass mirrors, very limited maintenance, the Tisomic with PA-TDL technology is a unique analyser on the market with high availability in your analyzing process.

On-line XRF elemental analysis in liquids

The XRF technology is based on Energy Dispersive X-ray Fluorescence (EDXRF) technology which is well known as an element measurement technique. EDXRF measures the characteristic fluorescent X-rays generated by the atoms in the sample that have been excited by high-energy X-rays. The Hobré XRF technique measures different elements such as Sulphur in pipeline monitoring and refinery processes, or different elements in metal mining recycling and refining. Elements from silicon (Z=14) to uranium (Z=92), from ppm to percentage levels. The XRF technology is a low-maintenance technology with an automatic drift correction. This on-line technology has a continuous non-destructive analysis and can measure up to 15 elements with one single analyzer.

H2O & CO measurement in spray dring

The safety and efficiency of powder drying has become increasingly significant for manufacturers operating in the food and pharma industry. Due to increasing demand, energy prices and environmental requirements operational processes face a challenge; safety and efficiency. Hobré is the first to combine H2O and CO measurement in one analyzer and offers outstanding measurement of these parameters. By measuring the maximum exhaust air saturation, the absolute humidity level will be controlled. As well measuring the in- and outside temperature of the drying tower, improves the product quality. The technique of our HICOSYS / NICOSYS provides better control of powder sedimentation and reduces smoldering. Due to a fast and accurate detection of CO from smoldering and Maillard reactions, process safety is being improved. Our CO, ΔCO and H2O measurement can be used for low, mid and high powder concentrations, has a reliable and continuous sampling and hygienic design for low fouling.

Sample conditioning systems

Hobré’s Sample gas conditioning provides stable readings within minutes on trace levels of moisture and H2S. The sample gas conditioning measurement principle has two different varieties: the Flow impact probe and the HPFF filter phobic membrane. The Hobré flow impact probe with preconditioning system has a built-in fast loop driven by process velocity. It simultaneously prevents pollution of the environment by flaring or atmospheric venting. The HPFF filter phobic membrane filter prevents contamination of sample lines, and as such avoids excessive memory effects during the analysis of reactive molecules, such as NH3, H2S and water. Hobré’s sample gas conditioning measurement is a modular concept and can be selected based on application requirements.

It protects the analyzer and sampling system against liquid and particle carry-over. It lowers the emission by more than 90% reduction in gas flaring and venting and it has a significantly faster response time compared to the traditional sampling systems.

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