ISO DIS 27919-1

Description / Abstract: This document establishes guidelines for measuring, evaluating and reporting the performance of a PCC plant integrated with a power plant, and which separates CO2 from the power plant flue gas in preparation for subsequent transportation and geological storage. In particular, it provides a common methodology to calculate specific key performance indicators (KPIs) for the PCC plant, requiring the definition of the boundaries of a typical system and the measurements needed to determine the KPIs.

This document covers thermal power plants burning carbonaceous fuels, such as coal, oil, natural gas and biomass-derived fuels, which are producing CO2 from boilers or gas turbines, and are integrated with CO2 capture.

The PCC technologies covered by this document are those based on chemical absorption using reactive liquids; such as aqueous amine solutions, potassium carbonate solutions, and aqueous ammonia. Other PCC concepts based on different principles (e.g. adsorption, membranes, cryogenic) are not covered. The capture facility may be installed for full CO2 capture or partial CO2 capture. Captured CO2 is processed in a compression or liquefaction step as determined by the conditions for transportation and storage.

The KPIs considered in this document are the following:

— Specific thermal energy consumption (STEC)

— Specific electrical energy consumption (SEC)

— Specific equivalent electrical energy consumption (SEEC)

— Specific reduced CO2 emission (SRCE)

— Specific absorbent consumption (SAC) and specific chemical consumption (SCC)

The calculations are based on measurements at the boundaries of the considered system, particularly of energy and utilities consumption. The integrated system includes the definition of interfaces between the capture plant and the power plant.

This document includes the following clauses:

Clause 4 Defining the system boundary

This clause defines the boundaries of the PCC plant and identifies which streams of energy and mass are crossing these boundaries to help power plant operators identify the key streams that are applicable for their particular case.

Clause 5 Definition of basic PCC plant performance

This clause defines the parameters that describe the basic performance of the PCC plant.

Clause 6 Definition of utilities and consumption calculation

This clause lists the utility measurements required and provides guidance on how to convert utility measurements into the values required for the KPIs.

Clause 7 Guiding principle - Basis for PCC plant performance assessment

This clause describes all guidelines to prepare, set-up and execute the tests. Clause 8 Instruments and measurement methods This clause lists the standards available for the relevant measurements and considerations to take into account when applying measurement methods to PCC plants.

Clause 9 Evaluation of key performance indicators

This clause specifies the set of KPIs to be determined and their calculation methods to provide a common way of reporting them.

A set of annexes provides further information for the users of this document.

This document does not provide guidelines for benchmarking, comparing or assessing KPIs of different technologies or different PCC projects.

In this document, in order for any readers to avoid any misunderstandings, thermal energy and electric energy are expressed by the unit of “J” (Joule) and “Wh” (Watt hour) respectively unless otherwise noted, with a prefix of International System of Units (SI) if necessary. (1 J = 1 W·s, 1 Wh = 1 W·h = 3 600 J)