2025年加速化工行业低碳转型-实现绿氨经济性的可行路径研究报告_43页_1mb

Summary of "Advancing Green Ammonia Economics: Towards Decarbonization of China's Chemicals Industry"

Core Content

Ammonia (NH₃) is a critical chemical product with widespread applications in agriculture, industry, and emerging energy sectors. Globally, over 70% of ammonia is used for nitrogenous fertilizers, while its potential as a clean energy carrier is growing due to its ability to support decarbonization in shipping and power generation. However, traditional ammonia production relies heavily on coal and natural gas, resulting in high carbon intensity and energy consumption. In China, coal is the dominant feedstock, accounting for over 75% of ammonia production, leading to a carbon intensity of 4.4–4.8 tCO₂/tNH₃, which is more than double that of natural gas-based production.

China is the world's largest producer and consumer of ammonia, with 53.21 million tons produced in 2022. Ammonia production contributes significantly to China's carbon emissions, accounting for 2.2% of the country's total emissions and nearly one-fifth of the chemicals industry's emissions. This underscores the importance of transitioning to green ammonia production to reduce the carbon footprint of the chemicals sector.

Main Viewpoints

1. Green Ammonia as a Key Decarbonization Tool:
   Green ammonia, produced using renewable energy and green hydrogen, is gaining attention as a solution for decarbonizing multiple industries, including agriculture, shipping, and power generation.

2. Policy and Market Drivers in China:
   The Chinese government has introduced several key policies to support the low-carbon transformation of the ammonia industry, including the Implementation Guidelines for Energy-Saving and Carbon-Reducing Transformation and Upgrading of Ammonia Industry and the Special Action Plan for Energy Conservation and Carbon Reduction in Ammonia Industry. These policies aim to increase the proportion of ammonia production meeting energy efficiency benchmarks from 15% to 30% by 2025 and promote the use of renewable energy in hydrogen production.

3. Renewable Energy Integration:
   The development of wind, solar PV, and other renewable energy sources provides the technological foundation for green ammonia growth in China. Green ammonia projects are increasingly being located near renewable energy-rich regions, such as Inner Mongolia, Jilin, and Qinghai, reflecting a shift from coal-based production to renewable-based production.

4. Economic Challenges:
   Green ammonia production faces significant cost challenges compared to conventional methods. These costs are influenced by the stability of renewable electricity supply, technological advancements, policy support, and market mechanisms such as carbon pricing and downstream premiums.

5. Technological Solutions:
   To address the intermittency of renewable power, two main approaches are being explored:

   • On-grid constant-stable-state: Using grid electricity to compensate for fluctuations in renewable generation.
   • Off-grid multiple-stable-state: Incorporating energy and hydrogen storage to allow for flexible, stable operation under varying conditions.

   Advances in low-temperature and low-pressure ammonia synthesis, along with improved catalyst efficiency, are expected to make small-scale, distributed green ammonia (DGA) production more viable and cost-effective.

6. Global Practices and Implications:
   International examples such as Yara, Talus, and NEOM demonstrate various strategies for scaling green ammonia, including subsidy support, value chain collaboration, and large-scale renewable integration. These practices offer valuable insights for China’s green ammonia development.

Key Information

• China's Green Ammonia Targets:
  China has announced a total planned green ammonia capacity of over 13 million tons. Inner Mongolia and Jilin are leading in terms of project scale and number.

• Policy Impact:
  Policies such as the 14th Five-Year Plan and Implementation Plan for Carbon Peaking in Industrial Sector are driving the shift from coal-based to low-carbon production methods, including green hydrogen.

• Carbon Emissions:
  The carbon intensity of coal-based ammonia is significantly higher than natural gas-based and green ammonia. Using green hydrogen and renewable energy can reduce emissions by up to 100%, enabling zero-carbon production.

• Future Outlook:
  The report emphasizes the need for a multi-faceted approach to reduce green ammonia costs, including technological innovation, policy incentives, and market mechanisms. It also highlights the importance of scaling up green ammonia applications across various sectors to achieve a low-carbon transition in the chemicals industry.

Key Scenarios and Use Cases

1. Agricultural Use:
   Green ammonia can replace conventional fertilizers, reducing the carbon footprint of agriculture.

2. Maritime Fuel:
   Ammonia has potential as a zero-emission fuel for shipping, with countries like Japan actively supporting its use through infrastructure and policy incentives.

3. Power Generation:
   Blending green ammonia with fossil fuels in power plants can reduce emissions, and full electrification of both production stages can lead to zero-carbon power generation.

Key Recommendations

• Strengthen Policy Support:
  Implement and enforce energy efficiency benchmarks, encourage the use of renewable energy in hydrogen production, and provide subsidies and tax exemptions for green ammonia projects.

• Promote Technological Innovation:
  Develop more efficient and flexible ammonia synthesis technologies, including miniaturized Haber-Bosch processes and advanced catalysts, to reduce costs and improve adaptability to renewable energy fluctuations.

• Enhance Market Mechanisms:
  Leverage downstream premiums, carbon pricing, and green product verification to improve the economic viability of green ammonia.

• Encourage Multi-Sector Collaboration:
  Facilitate partnerships between the petrochemical and hydrogen industries, as well as cross-sectoral collaboration to optimize the value chain and scale up green ammonia production.

• Support Local Development:
  Local governments should play a key role in promoting green ammonia projects by setting clear targets, providing incentives, and reducing regulatory barriers.

Outlook

Green ammonia is expected to become a crucial clean feedstock and energy source in China’s transition to a sustainable chemicals industry. With continued policy support, technological progress, and market development, green ammonia can achieve cost parity with conventional methods and support decarbonization across multiple sectors. The report provides a roadmap for scaling green ammonia in China, emphasizing the need for a holistic approach that integrates policy, technology, and market mechanisms.