Unique solutions for shipboard nitrogen generation

Index

Competence and Trust 3

Nitrogen Generation for LNG or Dual Fuel Propulsion 4

NITROMEM® Marine Nitrogen Membrane Generators 7

NITROMEM® Advantages 9

Technical Specifications 10

Why Noxerior? 11

NOXERIOR – Competence and Trust

NOXERIOR focuses on all aspects of the production of dry compressed air and its non-cryogenic separation for on-site generation of nitrogen and oxygen; we help our customers to reduce their costs by offering a customized solution based on either Pressure Swing Adsorption (PSA) or hollow-fibre membrane technology. The unique and patented technology applied for our NITROSWING® and OXYSWING® modular PSA gene-rators has set market standards in terms of flexibility, efficiency and reliability. Our special packages for in-strument air, nitrogen or oxygen generation, designed according to customer’s specifications and suitable even for operation at extreme ambient conditions, are well known for their high level of engineering and outstanding quality.

SHAPING THE FUTURE

Behind all our activities lies trust: the trust our custo-mers have in our ability to meet their specific needs in terms of both quality standards and agreed delivery terms. Our prime aim is to establish a long-term professional relationship based on transparency and reliability. Our customers appreciate our capacity for smooth project execution and on-time delivery.

NOXERIOR has an export quote of almost 90% with customers located in all corners of the world.

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NITROMEM® Shipboard Nitrogen Applications

LNG is considered as one of the few fuels capable of mee-ting ever-tightening emissions regulations in the years ahead. Using LNG as fuel for ship propulsion offers clear environmental benefits compared to the conventional HFO fuelled propulsion solutions, as the elimination of SOX emissions, a significant reduction of NOX and particulate matter as well as a reduction of GHG emissions. Like other combustible liquids, LNG is not flammable in the liquid phase and cannot ignite, but in the vapour phase it is highly flammable and will readily burn when there is a 5 to 15 percent by volume mixture with air.

Nitrogen is an inert gas and as such can prevent a flam-mable mixture from occurring. Therefore, the presence of a reliable on-board nitrogen supply source will be mandatory in case of LNG fuelled ship propulsion. The NITROMEM® Marine Nitrogen Membrane Generators from NOXERIOR are the right solution to meet this strin-gent condition.

The application of NITROMEM® Marine Nitrogen Mem-brane Generators from NOXERIOR for LNG or dual fuel propulsion can be divided into two categories:

General LNG Fuelled / Dual-Fuelled Vessels n Inerting of bunkering station equipment and liquid

bunkering lines before and after bunkering,

n Purging and inerting of LNG piping inside the Cold Box (vaporizer & PBU (Pressure Build-up Unit)) after tank outlet valve,

n GVU (Gas Valve Unit) purging,

n Sealing of double wall fuel gas pipes in the E/R (Engine Room),

n Purging of fuel gas pipes and complete fuel gas supply system on the engine, particularly after gas fuel stop or shutdown by the engine’s Gas Injection Control and Safety System,

n Inerting of hold space/gas fuel storage room in case of LNG tank installation inside the ship’s hull,

and specific additional applications for

Dual-Fuelled LNG Carriers n Operation of diaphragm actuators of valve unloaders

on the BOG compressors to unload one half of the double-acting cylinders,

n Continuous purging of the insulation spaces of the BOG re-liquefaction system cold box (if such system is installed on the carrier),

n Dry seal inerting of both the compressor and the turbo- expander of the eventual on-board BOG re-liquefaction system,

n Inerting of the hold and inter-barrier spaces between the LNG tanks and the ship’s hull,

n Purging of cargo liquid line, vapour line, gas line, vent masts and related cargo equipment.

On-board installed nitrogen generators are being operated successfully for this specific application on various other types of vessels, like PSVs, bulk carriers, chemical tankers and ferries. The smallest NITROMEM® Marine Nitrogen Membrane Generators are also suitable for LNG bunkering barges.

The cargo tanks of IMO II & III oil and chemical tankers, either empty or filled, are normally protected against explosion by inert gas blankets. Inert gas is also required for cargo strip-ping, cargo padding and purging of cargo piping.

As a result of changes to SOLAS, the Fire Safety Systems (FSS) Code and the International Bulk Chemical (IBC) Code, all oil and chemical tankers of 8.000 DWT and above must be provided with a fixed inert gas system. The revised SOLAS allows the application of inert gas to be postponed until after loading but before the commencement of unloading, although only nitrogen is accepted as inert gas medium because of the risk of generating static electricity by using exhaust gas. The on-board nitrogen generator shall have a design capacity of 125% of the cargo unloading rate and deliver inert gas with an oxygen content of not more than 5% by volume to the cargo tanks at any required flow rate.

The NITROMEM® Marine Nitrogen Membrane Generators from NOXERIOR meet all requirements for inert gas systems as specified in Chapter 15 of the amended FSS code (IMO – MSC 93/22/Add.1 – Annex 3) conform IMO resolution MSC.367(93).

Nitrogen Generation for LNG or Dual Fuel Propulsion

Nitrogen Generation on Oil & Chemical Tankers and Gas Carriers (non LNG).

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NOXERIOR has an experience of more than thirty years with the design and manufacturing of nitrogen gene-rators based on air separation by either Pressure Swing Adsorption (PSA) or hollow-fi bre membranes. Having a profound knowledge of both processes, the hollow-fi bre membrane technology has been considered the preferred solution for the NITROMEM® Marine Nitrogen Generators:

n Continuous process compared to intermittent PSA process. The absence of moving parts stands for increased reliability and system availability,

n Reduced system footprint, no need for feed air dryer and feed air receiver. Smaller dimensions of the membrane nitrogen generator,

n Stable nitrogen production capacity compared to falling production capacities of PSA generators at increasing feed air temperatures (more than 20% loss of capacity from 20 to 35 °C in comparison to equivalent membrane systems).

Best Possible Feed Air Conditioning.Despite the relatively limited annual operating hours, the NITROMEM® Marine Nitrogen Membrane Generators in-clude an extended feed air fi ltration and conditioning to remove condensate, oil traces, oil vapours and particles to avoid potential clogging of the permeable hollow-fi b-re walls. Optimum fl ow conditions through the air fi lters are guaranteed over the long exchange intervals in order to ensure a correct air fi ltration, even immediately after system activation from stand-by mode. All fi ltration elements are easily accessible from one side of each ge-nerator. Maintenance of the integrated activated carbon tower in narrow spaces is extremely easy thanks to the application of NOXERIOR’s patented modular adsorber design.

Production of Extremely Dry Nitrogen.The hollow-fi bre membrane modules of the NITROMEM® Marine Nitrogen Membrane Generators also have an outstanding drying capacity as water vapour will be the fi rst component of the incoming feed air to permeate through the membrane wall. A feed air heater will en-sure that all remaining water traces will be in the vapour state at module inlet.

This feature allows the NITROMEM® Marine Nitrogen Membrane Generators to produce nitrogen with an unmatched low dew point of less than -70 °C, unreacha-ble by any PSA nitrogen generator without additional adsorption drying. Low dew point values for the produced nitrogen are essential to avoid icing damage in hold- and inter-barrier spaces between the LNG tanks and the ship’s hull or in cold boxes.

No Need for Back-Purging.Unlike other marine nitrogen generators, the NITROMEM® Marine Nitrogen Membrane Generators don’t require any additional back purge line installed between the nitrogen system and the external nitrogen buff er tank for dew point preservation. A NITROMEM® Marine Nitrogen Membrane Generator in stand-by mode will be able to supply on-spec nitrogen within only 3 seconds from start signal.

Easy Integration with the Vessel’s IAS.The control system of the NITROMEM® Marine Nitro-gen Membrane Generators allow any direct connection to the vessel’s IAS (Integrated Automation System) through Ethernet connection Modbus TCP/IP, Modbus RTU or Profi bus DP for remote monitoring and system start/stop. Remote monitoring is also available for Smartphones or Tablets, eventually by means of an optional Wi-Fi module.

Certifi ed for Marine Application.All NITROMEM® Marine Nitrogen Membrane Genera-tors have a TAC (Type Approval Certifi cate) released by LR to confi rm their suitability for installation in ships machinery spaces in accordance with the requirements of the Rules of the Classifi cation Society, IMO, FSS code and SOLAS. Moreover, the NITROMEM® Marine Nitrogen Membrane Generators are also certifi ed to be compliant with the essential Marine-pollution preven-tion requirements of the Marine Equipment Directive (MED) 96/98/EC and related successive Commission Directives.

NITROMEM® Marine Nitrogen Membrane Generators.

APP

ROVE

D

TYPE APPROVALSCHEME

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ConvenienceAutomatic and unattended operation. Fully automatic starting and stopping of the nitrogen production in direct response to demand from the vessel’s downstream nitrogen consumption. Easy, intuitive graphical operator touch-panel. Full integration with the vessel´s IAS.

High System Reliability & QualityFirst-class components, stainless steel process piping, valves and regulators, heavy-duty PLC. Extended feed air fi ltration, including activated carbon tower, and feed air condition monitoring. It should work. Always.

Guaranteed Stable Nitrogen PurityReal-time purity monitoring in combination with an automatic blow-off system and a nitrogen discharge fl ow regulation guarantees you that your produced nitrogen always corres-ponds with the defi ned specifi cations, even in case temporary nitrogen demand would exceed the rated production capacity of your NITROMEM® Marine Nitrogen Membrane Generator.

Ultra-Fast Reaction TimeThe fastest marine nitrogen generator on the market: from stand-by mode to the supply of on-spec nitrogen within only 3 seconds after start signal. Fast reaction times allow the installation of signifi cant smaller shipboard nitrogen receivers compared to any other marine nitrogen generator.

CompactAll NITROMEM® Marine Nitrogen Membrane Generators represent the most compact shipboard nitrogen generators currently available on the market. At similar performance data, 30 to 40% less installed volume than competing products des-pite the integration of a more extensive feed air conditioning system.

Easy Fleet ManagementModular design and identical components for the entire model range mean limited spare part management, fast supplies and easy maintenance.

NITROMEM® Advantages

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Residiual Oxygen Content 0,5 vol.% 1,0 vol.% 2,0 vol.% 3,0 vol.% 5,0 vol.%

Feed AirPressure

bar(g)psig

7,5 110

10145

13190

7,5110

10145

13190

7,5110

10145

13190

7,5110

10145

13190

7,5110

10145

13190

NM-9 M Nm³/hscfh

5,6209

7,6284

10,1377

7,9295

11,0411

14,6545

11,4426

16,5616

22,2829

15,2567

21,5802

28,51.064

22,5840

32,21.202

43,81.635

NM-18 M Nm³/hscfh

11,2418

15,2567

20,2754

15,8590

22,0821

29,21.090

22,8851

33,01.232

44,41.657

30,41.135

43,01.605

57,02.128

45,01.680

64,42.404

87,63.270

NM-27 M Nm³/hscfh

16,8627

22,8851

30,31.131

23,7885

33,01.232

43,81.635

34,21.277

49,51.848

66,62.486

45,61.702

64,52.407

85,53.191

67,52.519

96,63.606

131,44.904

NM-36 M Nm³/hscfh

22,4836

30,41.135

40,41.508

31,61.179

44,01.642

58,42.180

45,61.702

66,02.463

88,83.314

60,82.269

86,03.210

114,04.255

90,03.359

128,84.807

175,26.539

NM-45 M Nm³/hscfh

28,01.045

38,01.418

50,51.885

39,51.474

55,02.053

73,02.725

57,02.128

82,53.079

111,04.143

76,02.837

107,54.012

142,55.319

112,54.199

161,06.009

219,08.174

NM-54 M Nm³/hscfh

33,61.254

45,61.702

60,62.262

47,41.769

66,02.463

87,63.270

68,42.553

99,03.695

133,24.972

91,23.404

129,04.815

171,06.383

135,05.039

193,27.211

262,89.809

NM-63 M Nm³/hscfh

39,21.463

53,21.986

70,72.639

55,32.064

77,02.874

102,23.815

79,82.979

115,54.311

155,45.800

106,43.971

150,55.617

199,57.446

157,55.879

225,48.413

306,611.444

NM-72 M Nm³/hscfh

44,81.672

60,82.269

80,83.016

63,22.359

88,03.285

116,84.360

91,23.404

132,04.927

177,66.629

121,64.539

172,06.420

228,08.510

180,06.718

257,69.615

350,413.079

ProductPressure

bar(g)psig

5,783

8,2119

11,2162

5,783

8,2119

11,2162

5,783

8,2119

11,2162

5,783

8,2119

11,2162

5,783

8,2119

11,2162

Dew Point (2) °C / F < -70 / -94

Sound Level Leg dB(A) 44 - 70 @ 1 meter distance (max. value only during off -spec nitrogen blow-off )

(1) Defi nition of Nm³ based on reference conditions 0 °C, 101,325 kPa(a) and dry basis. Indicated fl ow rates are valid for operation of the generator at atmospheric conditions 20 °C / 70 °F, 1013 mbar / 14,7 psi and 60% RH.(2) Pressure Dew Point

Technical Specifi cations

Standard Components

n Feed Air Filtration, incl. Modular Activated Carbon Tower to patented NOXERIOR design

n Electric Feed Air Heater n Process Piping & Fittings in Stainless Steel n Feed Air & Nitrogen Pressure Transmitters n Feed Air Temperature Transmitter n Feed Air Moisture Analyser n Oxygen Analyser with Zirconium-Oxide Sensor n Electronic Nitrogen Flow Meter n Automatic Off -spec Nitrogen Blow-off System n Nitrogen Pressure Regulation n Control System with Siemens PLC n Siemens Interactive 7” Touch Screen HMI n Ethernet Connection Modbus TCP/IP n App for Remote Monitoring by Smartphone or Tablet n Marine Painted Carbon Steel Cabinet n TAC and MED Certifi cate from LR

Options

n Nitrogen Moisture Analyser n Modbus RTU or Profi bus DP Data Connection n WiFi or GSM Communication Module n Analogue Output Signals Module (4 – 20 mA) n ANSI / DIN / JIS Flanged Connections n External Nitrogen Booster with Cylinder Filling Manifold n Class Approval by Major Classifi cation Society

Due to the unique design features of the NITROMEM® Marine Nitrogen Membrane Generators, NOXERIOR can supply you the most compact units on the market for the on-board production of nitrogen.

Our systems, including air compressors, can be sup-plied turn-key installed either on a single skid or inside a top deck container and will be suitable for operation under harsh marine or off shore ambient conditions.

NOXERIOR also has experience with the supply of specially designed nitrogen generation plants for off shore platforms. Please contact us directly in case you would be interested in one of our special products.

Special Products

A reliable and responsive after-sales service is an integral part of NOXERIOR’s business philosophy. Our technicians or our local partners for the NITROMEM® Marine Nitrogen Membrane Generators are able to assist you with correct installation and maintenance of your system.

Critical spare parts are always available on stock and can be supplied immediately to any location in the world.

After-Sales Service

All activities within our company strictly comply with the procedures of our certifi ed quality management system to both ISO 9001:2008 and ISO 13485:2012, which are regularly updated and optimised.

Before packing and shipment each NITROMEM® Ma-rine Nitrogen Membrane Generator will be thoroughly tested.

Quality

According to our environmental management system certifi ed to ISO14001:2004 and EMAS we constantly verify and correct our consumption of utilities and our waste disposal and we pay special attention to the material selected for our products and services.

Our Health & Safety system is implemented and applied according to national Italian legislation with periodic external verifi cation by local authorities.

Health, Safety & Environment

Please ask for the latest version of our reference list.

References

Model Lengthmm (inch)

Widthmm (inch)

Heightmm (inch)

Weightkg (lbs)

NM-9 M 1.20047

70028

2.00079

315695

NM-18 M 1.20047

70028

2.00079

330730

NM-27 M 1.20047

70028

2.00079

380840

NM-36 M 1.20047

70028

2.00079

395870

NM-45 M 1.70067

70028

2.00079

5001.100

NM-54 M 1.70067

70028

2.00079

5151.135

NM-63 M 1.70067

70028

2.00079

5651.245

NM-72 M 1.70067

70028

2.00079

5801.280

Power Supply 110–230 V / 50–60 HzPower Consumption 1,3 - 2,3 kW

Standard Components

Feed Air Filtration, incl. Modular Activated Carbon Tower to patented NOXERIOR design

Electric Feed Air HeaterProcess Piping & Fittings in Stainless SteelFeed Air & Nitrogen Pressure TransmittersFeed Air Temperature TransmitterFeed Air Moisture AnalyserOxygen Analyser with Zirconium-Oxide SensorElectronic Nitrogen Flow MeterAutomatic Off -spec Nitrogen Blow-off SystemNitrogen Pressure RegulationControl System with Siemens PLCSiemens Interactive 7” Touch Screen HMIEthernet Connection Modbus TCP/IPApp for Remote Monitoring by Smartphone or TabletMarine Painted Carbon Steel CabinetTAC and MED Certifi cate from LR

Power Supply 110–230 V / 50–60 HzPower Consumption 1,3 - 2,3 kW

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NOXERIOR s.r.l.Via Giordania, 4858100 Grosseto – Italy

Tel.: +39 (0564) 45 80 41/42Fax: +39 (0564) 45 80 43E-Mail: info@nitromem.com www.nitromem.com