Steel Plant Coke Oven Gas-to-Hydrogen & LNG Co-production Digital Solution

Solution Overview

China's first end-to-end system integrating digital intelligence technology with energy full-scenario applications, independently developed by AJH

As a key emission reduction industry, the steel industry faces challenges of high energy consumption and large emissions. AJH has developed China's leading full-scenario digital intelligence solution for steel enterprises' coke oven gas resources, combining advanced PSA pressure swing adsorption technology and deep-cooling liquefaction processes with intelligent IoT and data analysis technologies to achieve joint production and efficient management of hydrogen and LNG.

This solution has been successfully applied to the Angang Zhongji project, with an investment of approximately 600 million yuan, processing 438 million cubic meters of coke oven gas annually, producing approximately 100,000 tons of LNG and 24 million cubic meters of hydrogen annually, reducing carbon emissions by approximately 470,000 tons per year, providing a successful model for promoting green and low-carbon transformation of the steel industry.

470,000tons

Annual CO₂ Emission Reduction

16days

Equipment Commissioning Cycle

20million+

R&D Investment

Core Advantages of Digital System

Enabling traditional energy production to achieve smart connectivity, safety, efficiency, and green low-carbon operations

Full-Process Visual Monitoring

Real-time monitoring of key parameters such as liquid level, temperature, and pressure through intelligent sensor networks and IoT technology, achieving transparent production process management and timely detection and prevention of potential safety hazards.

Digital Twin Technology Application

Build 3D virtual parameter models for each equipment, displaying equipment status, location, design attributes and manufacturing parameters in real-time, supporting rapid equipment fault location and maintenance, providing "virtual-real integrated" equipment operation and maintenance support.

Production Efficiency Optimization

Through data-driven intelligent control systems, optimize equipment design and production processes, shortening the cycle from feeding to qualified product output to 16 days, 9 days shorter than the average time for similar equipment first startup.

Safety Warning & Intelligent Response

Intelligent monitoring system continuously monitors indicators such as temperature, pressure and gas concentration. Once abnormal conditions are detected, automatic warning procedures are initiated to ensure safety and stability during coke oven gas processing.

Carbon Emission Management & Optimization

Establish a complete carbon emission monitoring system, achieving 88% and 95% carbon reduction compared to traditional natural gas hydrogen production and coal-to-hydrogen respectively, helping enterprises achieve green and low-carbon transformation development goals.

End-to-End Ecosystem Management

Integrate full-chain data from energy production, storage and transportation to customer applications, achieving full-process digital management from production, storage, transportation to use, creating a complete green energy ecosystem.

Solution Technical Architecture

Independently developed Smart Connected Digital Platform with proprietary intellectual property

Coke Oven Gas-to-Hydrogen & LNG Co-production Digital Solution Architecture

Sensing Layer

Deploy various smart sensors to collect data on liquid levels, temperature, pressure, gas concentration, equipment operating status, etc., building a comprehensive IoT sensing network.

Transmission Layer

Based on multiple communication technologies such as 4G/5G/NB-IoT, achieve secure and efficient data transmission, supporting edge computing and cloud collaboration.

Platform Layer

AJH Smart Connected Platform provides data storage, processing and analysis capabilities, supporting real-time processing of massive data and building a unified data platform.

Application Layer

Provide multiple application functions including production monitoring, safety management, energy efficiency analysis, digital twin, carbon emission management, supporting multi-terminal access and visual display.

Application Scenarios

Comprehensive coverage of full-process application scenarios for coke oven gas-to-hydrogen & LNG co-production

Production Operation Monitoring
Safety Management
Energy Efficiency & Carbon Emissions
Equipment Management

Production Operation Monitoring

Real-time monitoring of full-process parameters including coke oven gas processing, hydrogen purification, and LNG liquefaction, including key indicators such as gas flow, composition, pressure, and temperature, displaying production status through visual dashboards.

Based on collected data, the system automatically analyzes production operation trends, predicts output, optimizes production plans, providing precise decision support for management personnel, improving production efficiency and product quality.

Real-time Process Parameter Monitoring

Intelligent Production Planning Optimization

Output Prediction Analysis

Multi-dimensional Data Visualization

Production Operation Monitoring Scenario

Success Case Study

Angang Zhongji Coke Oven Gas-to-Hydrogen & LNG Co-production Project

Project Background

Angang Zhongji (Yingkou) New Energy Technology Co., Ltd. invested approximately 600 million yuan to build the coke oven gas-to-hydrogen & LNG co-production project, which is a new energy demonstration project focusing on the national "dual carbon" strategy, covering 110,000 square meters and officially put into operation in September 2023.

Solution Application

AJH provided a complete digitalization solution for this project, with R&D investment exceeding 20 million yuan, equipped with over 80 R&D engineers, building China's first end-to-end system integrating digital intelligence technology with energy "production, storage, transportation, refueling, and use" full-scenario applications.

Implementation Results

Through digital platform empowerment, project management efficiency and equipment operation efficiency have significantly improved, shortening the cycle from feeding to qualified product output to 16 days, 9 days shorter than the average time for similar equipment first startup. The project can comprehensively utilize approximately 1.2 million cubic meters of coke oven gas daily, with expected annual LNG production of 100,000 tons and hydrogen production capacity of approximately 15,000 tons, reducing carbon dioxide emissions by approximately 470,000 tons annually.

"The Angang Zhongji digital platform can precisely control and adjust the production process through intelligent sensors and real-time data analysis, thereby timely discovering and avoiding potential safety hazards."

— Chairman of AJH