IGEM/TD/16 and IGEM TD/17
IGEM/TD/16 Biomethane injection
This Standard covers the construction and operation of
facilities that allow biomethane into a gas network, and the
functions such a facility may have to perform.
In particular, it covers the requirements for design,
construction, installation, inspection, testing , operation,
maintenance and de-commissioning of Biomethane Network Entry
Facilities (BNEF). Biogas Upgrading Plant (BUP) are outside the
scope of this standard but the impact of the BUP on the BNEF may be
appropriate. It contains details of various functions that a BNEF
may be required to perform, such as:
- Enrichment with LPG
- Pressure control
- Flow Management
- Gas analysis
- Odorant injection
Specifically, it details:
- Legal and allied considerations, such as Gas Safety
(Management) Regulations and Environmental Protection
- Contractual framework, asset ownership and design,
operating and maintenance responsibility
- Design, including material selection, pressure regulation
and flow management, metering and odorant injection.
- Construction, including installation and
- Commissioning and validation.
- Operation, including control and monitoring of calorific
value, gas quality, pressure and odorisation.
- Maintenance and periodic validation.
- General safety and record keeping.
IGEM/TD/17 Steel and polyethylene (PE) pipelines
for biogas distribution will be for use in conjunction
with existing standards IGEM/TD/3 Steel and PE pipelines
for gas distribution and IGEM/UP/2 Installation
pipework on commercial and industrial premises.
It provides guidance on the installation of biogas
pipelines, to allow producers to transport biogas for subsequent
grid injection or on site utilisation. This technical standard will
deal primarily with safety concerns relating to biogas composition,
and as well as constructing a pipeline.
It is designed for representatives of gas transporters and
potential suppliers to work to and also to provide assurances to
HSE that proper measures are in place relating to biogas pipelines.
It also aimed at designers of gas systems and
This Standard details the requirements for the use of
Steel and Polyethylene pipelines for the distribution of
In particular, it covers the additional requirements for
design, construction, inspection, testing, operation and
maintenance of stainless and polyethylene pipelines for the
conveyance of biogas. It covers pipelines carrying biogas not
exceeding MOP of 2 bar and at 0oC to 40oC for
PE and -40oC to 100oC for stainless steel. It
covers the predominantly underground network of pipes that convey
biogas from production plants to a suitable point where it can be
used in the industrial/commercial sector or upgraded to biomethane,
for use as vehicle fuel or injection in the Natural Gas network.
Specifically, it addresses:
- Competency, quality assurance and integrity of a
- Legal considerations and planning, such as the Pipelines
Act and Gas Safety (Management) Regulations.
- Design principles, including risk assessment and
classification of hazardous areas.
- Construction basics, such as joints and
- Pressure testing, commissioning and de-commissioning
- Alterations and connections to live
- Operation and maintenance, including gas
- Record keeping and distribution.