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PERMA PURE GASS-2040 Gas Analysis Sampling Systems 2040-001.

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Presentation on theme: "PERMA PURE GASS-2040 Gas Analysis Sampling Systems 2040-001."— Presentation transcript:

1 PERMA PURE GASS-2040 Gas Analysis Sampling Systems

2 PERMA PURE GASS New product introduction at AWMA Combines capabilities of Probe / Mini-GASS and GASS -II systems Can be mounted anywhere, including directly on stack flange with optional integral sample probe Most complete sample conditioning system on the market GASS-II discontinued, all other GASS systems still available

3 PERMA PURE The General Problem Gas analysis for Emissions or Process Monitoring involves three steps: 1. Sampling 2. Conditioning 3. Analysis Samples are typically: Hot Wet Dirty Analyzers require samples to be: Cool Dry Clean Sample conditioning receives little attention, but is often the most difficult step of the three.

4 PERMA PURE Sampling Methods In-situ analysis 2. Extraction a. Wet (filtered only) b. Dilution c. Drying 1) Absorption 1) Absorption 2) Condensation 2) Condensation 3) Selective permeation 3) Selective permeation

5 PERMA PURE Typical Problems in Gas Samples Gases Rarely a problem Rarely a problemLiquids Water Water Acid mists (sulfuric acid) Acid mists (sulfuric acid)Solids Ammonia salts Ammonia salts Excessive particulates Excessive particulates

6 PERMA PURE Water Problems Clogging or damage to analyzers or components Requirement for heated lines or analyzers Long calibration times due to adsorption/desorption Interference in infrared (or other) measurements Loss of water-soluble analytes Participation in unwanted chemical reactions

7 PERMA PURE Sulfur Dioxide Solubility in Water Temperature (Deg. C) SO 2 Solubility (ml SO 2 /100 ml H 2 O)

8 PERMA PURE Sulfur Dioxide Solubility in Water Temperature Degree C SO 2 Solubility in H 2 O ml SO 2 / 100 ml H 2 O Temperature Degree C SO 2 Solubility in H 2 O ml SO 2 / 100 ml H 2 O

9 PERMA PURE Unwanted Reactions Formation of Sulfuric Acid a. 2SO 2 + O 2 2SO 3 SO 3 + H 2 O H 2 SO 4 b. NO 2 + SO 2 + H 2 O H 2 SO 4 + NO 2. Formation of Ammonia Salts a. NH 3 + SO 2 + H 2 O NH 4 HSO 3 b. NH 3 + SO 3 + H 2 O NH 4 HSO 4

10 PERMA PURE Acid Mist Problems Mists are very corrosive, viscous, clogging Difficult to remove; slow to coalesce into sizeable droplets when cooled Special coalescing filters helpful

11 PERMA PURE Ammonia Salts Problems Present special problems Ammonia is gas, passes through probe filter Forms clogs if allowed to cool, react with SO 2 or SO 3 and H 2 O to form ammonium salts Requires special absorbents to remove ammonia before cooling to prevent clogs

12 PERMA PURE Excessive Particulates Easiest to solve Probe filter with heated blowback Secondary filter with finer porosity Inertial bypass filters if necessary

13 PERMA PURE The Solution Retain water-soluble analytes (HCl, SO 2, NO X ) Achieve low final sample dew points (down to -25 o C) Accept high sample flow rates (up to 25 L/minute) Accommodate nearly any sample (customized) Eliminate heated sample lines (stack mounting) GASS Gas Analysis Sampling Systems

14 PERMA PURE GASS Gas Analysis Sampling System

15 PERMA PURE Stainless steel NEMA-4X enclosure Integral probe with heated filter and blowback Hastelloy heat exchanger Coalescing/particulate filter with automatic drain Ammonia scrubber(s) Wide range of dryers, double dryers PLC with Ethernet for remote control Safety interlocks and alarms Sample pump, other options to customize system GASS Overview

16 PERMA PURE Integral Probe, Filter and Blowback

17 PERMA PURE Integral Probe, Filter and Blowback Range of probe lengths and materials Directly connected, no heated line Probe filter stainless steel or glass- coated Temperature controlled by PLC Avoids losses of analytes in filter Blowback heated, closely coupled Blowback timing controlled by PLC Avoids condensation during blowback

18 PERMA PURE Coalescing / Particulate Filter and Drain

19 PERMA PURE Coalescing / Particulate Filter

20 PERMA PURE Coalescing / Particulate Filter

21 PERMA PURE Coalescing / Particulate Filter Two-layer, coalescing and particle element Temperature controlled by PLC Removes particles >0.1 micron and mists Hastelloy heat exchanger Improves acid mist removal Available in stainless steel or PVDF Kynar ® Corrosion resistant

22 PERMA PURE Automatic Drain

23 PERMA PURE Automatic Drain Coalesced liquid removed by eductor Drain timing controlled by PLC Reliable, no peristaltic pump Eductor entirely PTFE Teflon ® Full corrosion resistance Teflon check valve Positive seal when not operating

24 PERMA PURE Ammonia Scrubber

25 PERMA PURE Ammonia Scrubber

26 PERMA PURE Ammonia Scrubber

27 PERMA PURE Ammonia Scrubber Proprietary scrubbing media Long-lasting, selective for ammonia No tools needed for media replacement Easy maintenance Stainless steel with stainless steel shell or polysulfone shell for visibility Corrosion resistant

28 PERMA PURE Nafion ® Gas Dryer

29 PERMA PURE NAFION ® Chemical Structure [ (CF 2 CF 2 ) m CF CF 2 ] n O CF 2 CF CF 3 O CF 2 WHEN: m = 5 to 13.5 n = ca 1,000 z = 1,2,3... x = 1 to 13 Z ZZ Z SO 3 H [H 2 O] X

30 PERMA PURE NAFION Gas Dryer Principle

31 PERMA PURE NAFION Dryer Schematic

32 PERMA PURE PD-Series Polytube Dryers

33 PERMA PURE NAFION Selectivity Nafion permeation selectivity is based on chemical reactivity, not size Only compounds that chemically associate with sulfonic acid permeate through Nafion Bases associate with sulfonic acid and permeate through Nafion Very few bases are gases at typical operating temperatures, so very few compounds permeate

34 PERMA PURE Effect on Analytes Removes water directly as water vapor. No condensate forms to dissolve analytes. Removes compounds with hydroxyl groups (-OH) H 2 O, some organics Retains important compounds O 2, O 3, CO, CO 2, NO X, SO 2, SO 3, H 2 S, Hg, HCl

35 PERMA PURE PD-Series Performance Chart DEWPOINT ( o C) FLOW (liters/min.) PD-50T PD-100T PD-200T MODEL

36 PERMA PURE Low Final Dew Points Dew point as low as -45 o C can be achieved. Dew point of -10 o C to -25 o C is typical. Performance is a function of dryer size and sample flow rate. Analytical results and reliability improved by reducing water interferences. Acid mist problems overcome


38 PLC Digital selection of operating conditions Precise control of operating parameters Standard unit, easy programming Easy maintenance and updating Optional Ethernet connection Remote control and data display

39 PERMA PURE Optional Heatless Dryer

40 PERMA PURE Optional Heatless Dryer

41 PERMA PURE Optional Heatless Dryer

42 PERMA PURE Optional Heatless Dryer Steady supply of dry air for system use Continuous 60 L/min. to -45ºC dewpoint No line pressure surges Inactive canister repressurized before reuse Very reliable with no maintenance Electronic switching, permanent spring- loaded molecular sieve

43 PERMA PURE Optional Sample Pump

44 PERMA PURE Optional Sample Pump Pump head mounted in heated zone Prevents sample condensation Pump motor mounted in unheated zone Improves pump reliability Pump head stainless steel or Teflon Corrosion-resistant, long life Sample transported under pressure Avoids contamination from minor leaks

45 PERMA PURE GASS-2040 Options Integral Probe Integral Probe Probe Filter Probe Filter Blowback Blowback Bypass Filter Bypass Filter Coalescing Filter Coalescing Filter Automatic Drain Automatic Drain Ammonia Scrubbers Ammonia Scrubbers Dryer Sizes Dryer Sizes Purge Heatless Dryer Purge Heatless Dryer Ethernet Connection Ethernet Connection X- or Z-Purge X- or Z-Purge Kynar® Fittings Kynar® Fittings Sample Pump Sample Pump Purge Eductor Purge Eductor

46 PERMA PURE Summation GASS combines all necessary sampling and conditioning in one package Proven technology, years of experience Opportunity to eliminate heated lines Many options; buy only what is needed Smaller systems available for less demanding applications

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