LNG tank system with vertical above-ground tank

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Advantages:

  • Less space required than with a horizontal above-ground LNG container
  • less heating of the medium due to the upright design
  • Due to its conspicuous size, it could possibly be seen as an advertisement for an LNG filling station

Disadvantage:

  • preferably only available as a 70 m³ container (smaller than 30 t storage quantity = simplified approval process)
  • for tanks larger than 70 m³, the effort and costs for installation increase disproportionately
  • Complex and expensive foundations and fastenings of the container with regard to wind loads, settlements or possible earthquakes
  • complex and expensive collision protection against mechanical damage by vehicles
  • possible negative influence on the overall image of the gas station due to the conspicuous upright design
  • Possibly large distances to the property boundaries to be observed in accordance with the building regulations
The LNG plants essentially consist of the following assemblies and equipment:
  • LNG storage tanks (standing, lying above ground or underground design)
  • Fittings equipment for the LNG tank
  • Pump assembly (for the horizontal or for the underground version as a submersible pump variant)
  • Saturation assembly - the so-called Satnow system
  • LNG dispensers
  • TKW transfer station for filling the LNG tank
  • Nitrogen tank (LIN) for cooling the LNG (is provided by the customer, e.g. on a rental basis by Linde etc., capacity approx. 6 m³)
  • Plant control, safety equipment and active and passive monitoring of the LNG plants
Choosing the tank size for LNG refueling systems:

The basis for an LNG system is always a standing or lying above-ground LNG tank or, as a new innovative design, an underground LNG tank. Due to the currently small number of LNG trucks (low refueling frequency - risk of heating the medium = formation of boil-off gas) and in particular due to the desire for a simplified approval process (storage quantity less than 30 t), a 70 m³ container is used as standard deployed. Taking into account the thermal expansion of the LNG and also the maximum filling limit, a maximum quantity of approx. 25 t can be filled into this container size.

Calculations (which we would be happy to provide on request) have shown that this container size can only be used for a maximum of 30-40 truck refueling processes. For 30 refueling processes z. B. daily 5000 kg LNG taken from the container. This means that the container has to be refilled about every 3-5 days in order not to worry about it being empty (taking into account the logistical problems with the delivery of the medium from Rotterdam and the delivery volume of about 19-20 t in drop shipping). This means that in some cases the use of a larger LNG container, for example a 120 m³ container, makes sense in order to ensure larger reserves in the storage container. It should be noted that this requires a formal approval procedure (more expensive, more complex, more time-consuming).

Our service for your LNG filling station:
  • Free consultation
  • project planning of the plant
  • Detailed planning of the system including 3D drawings
  • Appointment coordination with the TÜV or the approval authority
  • Preparation of the tender documents (if desired)
  • Preparation of a risk assessment (GBU)
  • Preparation of the application documents
  • Upkeep and maintenance concept by PA
  • Delivery, assembly and commissioning of the system
  • With CE mark

We offer you a suitability and preliminary examination of your property for the construction of an LNG plant, taking into account the technical, safety-related and legal approval bases (including an on-site visit). Taking into account the suitability and preliminary examination, we prepare the necessary application documents for the construction and approval of the LNG system (including an on-site visit).

On request we will send you a detailed offer for this.

Your responsible contacts for making an appointment are:

Mr. Rafik Dhouibi Phone 05341 87688-168 / E-Mail: dhouibi@pa-salzgitter.de
Mr. Klaus Ratzka Phone 05341 87688-112 / E-Mail: ratzka@pa-salzgitter.de

Contact information

PA Propan & Ammoniak
Anlagen GmbH

Erzwäsche 50-51
38229 Salzgitter OT Gebhardshagen

Telefon 0 53 41 - 8 76 88 - 0
Telefax 0 53 41 - 8 76 88 - 191

E-Mail: info@pa-salzgitter.de

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