GB21345-2024
Norm of energy consumption per unit production of yellow phosphorus
黄磷单位产品能源消耗限额
GB 21345-2024 is a current mandatory Chinese national standard for Norm of energy consumption per unit production of yellow phosphorus. It appears in the Construction compliance cluster with a energy efficiency focus and has an implementation date of May 1, 2025.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the calculation and assessment of energy consumption per unit product for electric furnace method yellow phosphorus production enterprises. It is also applicable for energy consumption control in new, rebuilt, and expanded projects. It does not apply to other yellow phosphorus production methods outside the electric furnace route.
Technical requirements
The standard introduces a three-tier energy consumption limit grade system for yellow phosphorus, where Grade 1 represents the lowest energy consumption. Existing yellow phosphorus production facilities must comply with the Grade 3 limit requirements. New and modified/expanded production facilities are subject to stricter Grade 2 limit requirements. It defines the boundaries for comprehensive energy consumption, encompassing the production system, auxiliary production system, and affiliated production system. The standard specifically outlines the calculation of energy consumed by the electric furnace, carbon reducing agents (like coke and anthracite), and other energy sources used in the process. Notably, the standard excludes the energy consumption of independent phosphorus ore powder pelletizing systems from the statistical scope. Energy recovered from waste heat and chemical reaction heat within the boundary is not counted as consumption if used internally without external output.
Testing methods
The standard specifies detailed calculation formulas for determining the comprehensive energy consumption per unit production. This includes calculating the energy consumption of the production system, the electric furnace power consumption adjusted for raw material composition (P2O5, Fe2O3, CO2 content), and the energy equivalent of carbon reducing agents. It references GB/T 2589 and GB/T 29116 for general calculation principles and provides reference coefficients for converting various energy sources and energy-consuming working fluids into standard coal equivalent.
FAQs
What products are regulated under GB 21345-2024?
GB 21345-2024 regulates the energy consumption limits for yellow phosphorus produced via the electric furnace method.
What are the differences between GB 21345-2024 and the 2015 version?
The 2024 version introduces a three-tier energy consumption limit grade system, deletes the advanced value and specific power consumption limits from the 2015 version, and adjusts the boundary scope by excluding the ore powder pelletizing system.
What are the compliance limits for new yellow phosphorus projects?
New and rebuilt/expanded yellow phosphorus production facilities must meet the Grade 2 energy consumption limit requirements.
The summary above provides a high-level overview of GB 21345-2024. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 21345-2024 today to access all detailed parameters, calculation formulas, and energy conversion tables.
Applicability hints
- Type
- Management
- CCS
- F01
- ICS
- 27.010
- Competent department
- Standardization Administration of China
- Technical committee
- National Technical Committee on Energy Fundamentals and Management of Standardization Administration of China
Relationships
Replaces:GB 21345-2015