Standards development for biomethane quality specifications at European Biogas Conference, oktober 2014 Erik Büthker Business Development Manager

>  CNG Net >  Role of standards >  Establishment of PC 408

Bio methane >  Preliminary results >  Time frame

Content

CNG Net & LNG 24

CNG Net >  CNG Net is investing in a cleaner

future. >  CNG Net carries out the

exploitation of a network of refuelling stations in The Netherlands.

>  CNG Net designs, build, finance, maintain and operate the refuelling stations at own risk.

>  CNG Net is a total solution provider.

Refuelling stations

>  57 CNG Net public refuelling stations

>  120+ CNG refuelling stations

>  2 LNG 24 refuelling stations >  10 LNG refuelling stations

in total

The role of standards >  International accepted

safety level •  minimal safety requirements •  safety distances at refuelling station

>  Standards are necessary to introduce a “new” fuel to get market acceptance

•  clear specifications and test methods •  no trade barriers caused by local

regulations

>  To overcome international trade barriers

•  refuelling coupling car/filling station

•  pressure levels for LNG storage

>  International certification of components and systems

•  clear specifications and test methods

•  no trade barriers caused by local regulations

International standard development

Establishment of PC 408

Establishment of PC 408

Goal EC

>  Stimulate the introduction of biomethane

>  A European Standard for biomethane to be used as fuel for vehicle engines

>  TS or EN for biomethane to be injected into the grid

Scope PC 408

Upgrading

biogas from digestion

injection into the gas grid

Refueling station

Part 1 grid specification

Part 2:Automotive

Specification

biogas fromthermo chemical process

conditioning

Refueling station

Part 2 :Automotive specification

Natural gas Grid

Local dedicated infrastructure

Non-grid sourced natural gas

>  first enquiry ended >  reviewing the comments >  four major challanges

>  Wobbe range for L gas >  Sulpher content >  Methane number >  Silicon levels

Current status

Preliminary results Parameter Injection group Fuel group hydrocarbon dewpoint prEN 16726 (max -2 oC) max -2 oC water dewpoint prEN 16726 (max -8 oC

at injection pressure) max -10 oC at 200 bar Class A

max -20 oC Class B max -30 oC Class C

Oxygen prEN 16726 (1% with restrictions)

max 1 %

H2S + COS prEN 16726 (5 mg/m3) max 5 mg/m3 S total prEN 16726 (20 mg/m3

without odorant) need for 10 mg/m3

CO max 0,1 % Total Silicon research research

Preliminary results

Parameter Injection group Fuel group Lower heating value min 39 MJ/kg - max 42.8 MJ/kg Net Wobbe index prEN 16726 min 41,9 MJ/kg - max 49 MJ/kg Net Wobbe index L gas min 35,0 MJ/kg - max 40,8 MJ/kg Methane number prEN 16726 (min 65) min 65 Methane number dedicated spec. prEN 16726 min 80 Hydrogen prEN 16726 same text max 2 % Compressor oil technically free dust impurities technically free proposal < 5 micron dust

< 10 micron liquid

Chlorinated, Fluorinated compounds based upon health criteria

Values based upon Health Criterea

Injection group

Metals: Arsenic 0.0041 mg/m3 Barium 0.11 mg/m3 Cadmium 0.0034 mg/m3 Chromium (Hexavalent) 0.00014 mg/m3 Chromium (Total) 0.00054 mg/m3 Nickel 0.014 mg/m3 Organo-chlorides [1] 1.0 mgCl/m3 Organo-fluorides [2] 3.5 mgFl/m3 Total S [3] 14 mgS/m3

Inorganic compounds: Ammonia 5824 mg/m3

Aromatic compounds: Xylene 13989 mg/m3

Preliminary results >  Risk Assessment Methodology,

bases upon European research carried out in UK (2012) and France (2008)

>  Health criterea assement will be a separate Technical Report (TS)

>  assessment /input needed from other European countries

research on Silicon >  Limit values have to be set >  report on behaviour of silicon for domestic

boilers >  failure of ionization safety device >  clogging of stainless steel heat exchangers >  carried out in L gas situation

>  research on behaviour of gas engines exposed to silicon >  failure of spark plug >  sensors performance like Lambda sensors >  performance of catalist >  Silica build up in lubrication oil

Time frame aug-­‐14   apr-­‐15   apr-­‐15   aug-­‐15   okt-­‐15   jan-­‐16  

End  of  enquiry  

TC/BT  decision:  2nd  enquiry  or  

vote   if  vote  

Final  draA  to  CMC  

Start  of  vote  

End  of  vote  

PublicaFon  

8,5  months  

(treatment)      

3,5  months  

(translaFon)  

2  months  (weighted  vote)  

3  month

s  (treatment)  

apr-­‐15   jul-­‐15   dec-­‐15   aug-­‐16   dec-­‐16   feb-­‐17   may-­‐17  

if  2nd  enquiry  

Enquiry  draA  to  CMC  

Start  of  enquiry  

End  of  enquiry  

TC/BT  decision:    vote  or  deleted  

Final  draA  to  

CMC  Start  of  vote  

End  of  vote  

PublicaFon  

2,5  months  

(translaFon)  

5  months  (commen

ts)  

8,5  month

s  (treatment)  

3,5  months  (translaF

on)  

2  month

s  (votes)  

3  months  (treatment)  

Contact Erik Büthker Business Development Manager e.buthker@cngnet.nl +31 6 2150 1403 CNG Net Ringwade 71 3439 LM Nieuwegein The Netherlands