SO3 Monitoring

Pentol Stack Analyser

The Pentol SO3 Stack Analyser combines wet-chemistry and photometry to measure accurately in stack SO3 concentrations in emissions and process gases.

The Pentol SO3 is a short extractive heated analyser ensuring repetitive and highly accurate measurements, making it suitable for direct usage within industrial plants or laboratory environments. The Pentol SO3 stack analyser offers a reliable solution for obtaining precise SO3 concentration data, essential to efficient process monitoring and emissions control.

The Pentol SO3 Stack Analyser is is based on a wet-chemical process. In power generation SO₃ measurements provide data to allow the operator to optimize combustion processes to minimize corrosion of the plant and limit acid discharges to the environment. Monitoring of SO₃ is also important where it is formed as a by-product, e.g. in De-NO_x systems. In processes where H₂SO₄ is used or ore with large amounts of sulphur is processed, the SO₃ monitor can measure SO₄ 2 – ions and show emission as mg/Nm³ or ppm.

Brochure

Exclusive Features

SO3 Stack Analyser

Measuring range 0-200 ppm SO3	Flue gas temperature up to 400°C (up to 550°C with special probes)
Portable and suitable for long- and short-term measurements	Response time approx. 120 sec
auto-calibrating in a user-defined cycle	Optional RS232 connector allows to log measurements on a laptop

Specifications

SO3 Stack Analyser

Analytical Performances
Measuring range 0 to 200 ppm

Accuracy +/-5% of reading

Lag time approx. 5 min.

Response time approx. 10 min.
Pleasant interface
Solution consumption (propan-2-ol) max. 1 ml/min

Calibration solution ≈ 30 ml/calibration

Ambient temperature 0 – 55 °C

Operating temperature 30 °C by installed cooling unit

Maximum temperature Flue gas temperature up to 400°C (up to 550°C with special probes)
Construction
Enclosure IP54

Analysis Module 19″ unit, (l/w/h = 60/55/55 cm, w=50 kg)

Control Module 19″ unit, (l/w/h = 60/55/25 cm, w=20 kg)

External dimensions From 615mm to 2.365mm

Power supply 230 V 50/60 Hz or 110 V 50/60 Hz, 350 W

Signal Output 4 … 20 mA output for external recorder
(Data logger included with the capacity of 1 year collection of data)
Options
Probe Length 0.5 m, 1 m, 1.2 m, 1.5 m, 2 m (standard 1,5 m)

Filter for probe 0.5 m, 1 m, 1.2 m, 1.5 m, 2 m (standard 1,5 m) for coal fired power plant or plants with high dust emission. Automatic purge system integrated
(adjustable on screen)

Measured Parameters

SO3 Stack Analyser

Pentol’s SO3 Monitor is a stable and accurate analysing monitor designed to meet a wide range of measuring requirements. The instrument is portable and suitable for long- and shorttern measurements.

PARAMETER	RANGE
SO3	0-200 ppm

Measuring Principle

Automated wet chemistry & photometry

The Pentol SO3 Monitor is based on a wet-chemical process.

The gas sample is measured by means of a heated probe. In the probe head, the sample is cooled down and diluted in a mixture of isopropanol and water. The SO₃ condenses and reacts with the sulfuric acid in the liquid phase, eliminating all problems related due to insufficient heating is known from manual measurements.

The sample is then transported to the instrument by the peristaltic pump and reacts with bariumchloranilate, colouring the sample according to the SO₃ concentration. The concentration is then measured with a photometer that can be calibrated automatically.

This procedure allows measuring repeatedly and very accurate directly in the plant or in laboratories.

Power Plant Optimisation

with SO3 measurements

Industrial Stacks

Monitoring solutions and applications for Industrial Applications, Labs, Coal and Heavy Fuel Oil Fired Power Stations

- SO3 measurements provide data to allow the operator to optimize combustion processes and minimize corrosion of the plant and limit acid discharges to the environment.
- SO3 monitoring is also important where it is formed as a by-product, e.g. in De-NOx systems.
- In processes where H2SO4 is used or ore with large amounts of sulphur is processed, the SO3 monitor can measure SO4 2- ions and show emission as mg/Nm³ or ppm. x

Continuous emission monitoring applicable for a wide range of applications, such as:

- - - incineration plants
    - waste incineration plants
    - power plants
    - Cement plants
    - metal industry
    - on plants according to 2001/80/EC LCPD
    - on plants according to IED 2010/75/EU

Pentol Stack Analyser

Exclusive Features

Specifications

Analytical Performances

Pleasant interface

Construction

Options

Measured Parameters

Measuring Principle

Power Plant Optimisation

Industrial Stacks

SERVICES & PRODUCTS ENQUIRIES

PRODUCTS

PARTNERS

APPLICATIONS