Standard No.:	GB/T 47039-2026
English Name:	Hydrogen metallurgy—Technical requirements for hydrogen-rich system in blast furnace smelting
Chinese Name:	氢冶金 高炉冶炼富氢系统技术要求
Chinese Classification:	H40    Steel and iron products in general
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR, SAC
Issued on:	2026-01-28
Implemented on:	2026-5-1
Status:	to be valid
Target Language:	English
File Format:	PDF
Word Count:	10500 words
Translation Price(USD):	315.0
Delivery:	via email in 1~5 business day

GB/T 47039-2026 Hydrogen metallurgy—Technical requirements for hydrogen-rich system in blast furnace smelting English, Anglais, Englisch, Inglés, えいご This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered. ICS CCS National Standard of the People's Republic of China ‌GB/T 47039-2026 Hydrogen metallurgy - Technical requirements for hydrogen-rich system in blast furnace smelting 氢冶金 高炉冶炼富氢系统技术要求 Issue date: 2026-01-28 Implementation date: 2026-08-01 Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China the Standardization Administration of the People's Republic of China Contents Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 Principle and Process Flow 4.1 Principle 4.2 Process Flow 5 General Provisions 5.1 Layout of the Hydrogen-Enriched System for Blast Furnace Smelting 5.2 Requirements for Hydrogen-Rich Gas and Purging Nitrogen 5.3 Piping 5.4 Power Supply, Electrical and Instrumentation Equipment 5.5 Fire Protection Design and Fire Extinguishing 5.6 Lightning Protection and Grounding 6 Equipment and Operating System 6.1 Basic Composition 6.2 Gas Storage Device 6.3 Main Hydrogen-Rich Header Valve Group 6.4 Distributor 6.5 Gas Path Switching Device 6.6 Hydrogen-Rich Branch Pipe Valve Group 6.7 Hydrogen-Rich Injection Lance 6.8 Purging Nitrogen Valve Group 6.9 Vent/Exhaust Device 6.10 Alarm Device 6.11 Hydrogen-Rich Operation Control System 7 Operation Management and Maintenance 7.1 Hydrogen-Rich Operation 7.2 Cessation and Resumption of Hydrogen-Rich Operation 7.3 System Emergency Shutdown Operation 7.4 Blast Furnace Hydrogen-Rich Smelting Operation 7.5 Safety Risk Management 7.6 Maintenance Hydrogen Metallurgy — Technical Requirements for Hydrogen-Enriched System in Blast Furnace Smelting 1 Scope This document specifies the principle and process flow, general provisions, equipment and operating system, and requirements for operation management and maintenance for the hydrogen-enriched system technology in blast furnace smelting. This document applies to the design, operation, management, and maintenance of new construction, renovation, and expansion projects of hydrogen-enriched systems for blast furnace smelting in the iron and steel industry. 2 Normative References The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 4830 Pressure range and quality of air supply for industrial process measurement and control instruments GB 4962 Technical safety code for use of hydrogen GB 12358 General technical requirements for gas detection and alarm instruments for workplace environment GB 15322.1 Combustible gas detectors — Part 1: Point type combustible gas detectors for industrial and commercial use GB 16808 Combustible gas alarm control units GB/T 20801 (all parts) Pressure piping code — Industrial piping GB/T 24499 Terminology of hydrogen, hydrogen energy and hydrogen energy system GB/T 29729 Basic requirements for safety of hydrogen systems GB/T 38927 Technical specification for producing methanol from coke oven gas GB/T 40789 Gas analysis — Determination of carbon monoxide content, carbon dioxide content and oxygen content — Procedure for online automatic measurement systems GB 50016 Code for fire protection design of buildings GB 50052 Code for design of electric power supply systems GB 50058 Code for design of electrical installations in explosive atmospheres GB 50116 Code for design of automatic fire alarm system GB 50177 Design code for hydrogen station GB 50217 Standard for design of power engineering cables GB 50406 Code for design of environmental protection of iron and steel industry GB 50414 Code for design of fire protection for iron and steel metallurgy enterprises GB 50427 Code for design of blast furnace ironmaking engineering GB 50516 Technical code for hydrogen fuelling station AQ 2002 Safety code for ironmaking 3 Terms and Definitions For the purposes of this document, the terms and definitions given in GB/T 24499, GB 50427, and the following apply. 3.1 hydrogen-rich gas Gas rich in hydrogen. NOTE: Commonly used hydrogen-rich gases include hydrogen, coke oven gas, reformed alkane gas, biomass gasification gas, etc. 3.2 hydrogen metallurgy A smelting technology that uses hydrogen-rich gas to partially or completely replace the reducing and fuel functions of carbon. NOTE: Hydrogen metallurgy includes technical routes such as hydrogen-rich blast furnace smelting, hydrogen-based shaft furnace direct reduction, hydrogen-based fluidized bed direct reduction, hydrogen-based smelting reduction smelting, hydrogen plasma reduction, and hydrogen metallurgical melting separation smelting. 3.3 hydrogen-rich ironmaking in blast furnace An ironmaking technology based on the existing blast furnace ironmaking process, where hydrogen-rich gas is injected into the blast furnace through the tuyeres and shaft area. The hydrogen-rich gas is used to replace part of the carbonaceous fuel (coke, pulverized coal, etc.) as a reducing agent and fuel in the blast furnace ironmaking process, aiming to reduce solid carbon fuel consumption and carbon dioxide emissions. 3.4 solid fuel ratio The total amount of coke, pulverized coal (without considering the replacement ratio for coke), small coke, and other solid fuels consumed per tonne of hot metal produced in blast furnace smelting. NOTE: The unit is kilograms per tonne (kg/t). 3.5 hydrogen-rich gas ratio The amount of hydrogen-rich gas injected per tonne of hot metal produced in blast furnace smelting. NOTE: The unit is cubic meters per tonne (m³/t). Unless otherwise specified, the gas volume in this document refers to the volume under standard conditions, which is defined as a temperature of 0 °C and a pressure of 101.325 kPa (absolute pressure). 3.6 replacement ratio of hydrogen-rich gas and solid fuel The ratio of the reduction in the solid fuel ratio to the hydrogen-rich gas ratio. NOTE: The unit is kilograms per cubic meter (kg/m³). 4 Principle and Process Flow 4.1 Principle Based on the existing ironmaking process and equipment, a hydrogen-rich gas injection system for blast furnace smelting is added. The hydrogen-rich gas is injected into the furnace through the blast furnace hydrogen-rich smelting system to achieve hydrogen-rich blast furnace smelting, reducing the consumption of solid carbonaceous fuel and CO₂ emissions. The blast furnace hydrogen-rich smelting system consists of gas storage devices, control valves, pipelines, injection lances, and other equipment used to transport the hydrogen-rich gas into the blast furnace. 4.2 Process Flow The process flow of the hydrogen-rich system in blast furnace smelting is shown in Figure 1, including three subsystems: gas supply, injection, and purging. Using externally supplied or on-site produced hydrogen-rich gas as the gas source, it is appropriately stored in the gas storage device. After pressure and flow regulation by the main hydrogen-rich gas header valve group, the gas is distributed through the hydrogen-rich gas distributor into each hydrogen-rich branch pipe. It is then injected into the blast furnace through each hydrogen-rich injection lance at the tuyeres, participating in the internal smelting process. Hydrogen is used for purging and safety protection of the hydrogen-rich gas storage devices, pipelines, valve groups, injection lances, etc.