CGA H-17

This publication applies to small hydrogen production units (thermal and electrolytic) that are sited at chemical or refinery plants, as well as those units that are sited at vehicle fueling stations or transfer facilities. For the purposes of this publication, small plants are defined as those with a production capacity between 1666 scfh to 373 000 scfh (45 Nm³/hr to 10 000 Nm³/hr; 40 MSCFD to 9000 MSCFD; or 1070 Nm³D to 241 000 Nm³D).

The thermal hydrogen production methods covered in this guideline are methanol cracking and SMR although some of the guidelines provided can apply to other thermal-based hydrogen production technologies.

This publication will provide a single comprehensive set of safety and operating guidelines to address the multiple hazards associated with the operation of small scale hydrogen production plants. These hazards are particularly acute if the production unit is located next to a liquid fueling station.

This publication will provide information for the end user, whether an experienced industrial user or a first-time industrial or commercial user. This document will reference other related documents and adapt the guidelines of large-scale HYCO facilities to these small scale operations. The following will be addressed:

• best practices for operation of small scale units;
• simplified process descriptions;
• guidance on siting of small scale units, including when next to other flammable material sources. Issues of area classification and vapor cloud explosion (VCE) will be discussed;
• guidelines for how small scale production facilities will interface with a co-located bulk storage facility with compression and high-pressure storage as well as liquid back-up storage and the associated vaporization equipment; and
• high level concerns associated with startup, shutdown, and maintenance.

Edition:

1st

Published:

09/07/2023

Number of Pages:

58

File Size:

1 file , 2.2 MB

Note:

This product is unavailable in Russia, Ukraine, Belarus