研判2025！中国沼气发动机行业产业链、进出口及发展趋势分析：技术突破提升经济性，出口数量激增但金额下降[图]

Industry Overview - Biogas engines have made significant breakthroughs in combustion efficiency, emission control, and fuel adaptability, achieving thermal efficiency close to international advanced levels [1][13] - The 190 series gas engine developed by Shengli Oilfield Shendong Group has won the National Science and Technology Progress Award and is widely used in landfills and farms [1][13] - The technological upgrades have directly reduced the operating costs of biogas power generation projects, enhancing their economic viability and stimulating rapid growth in installed capacity [1][11] Import and Export Dynamics - In the first five months of 2025, China did not import any biogas engines, indicating that domestic engines have met local demand and achieved import substitution [1][13] - During the same period, China exported 89 biogas engines, a year-on-year increase of 1383.33%, while the export value was 466,400 yuan, a decrease of 77.18% [1][13] - Chinese biogas engine companies are accelerating their expansion into emerging markets in Southeast Asia and Africa, leveraging cost-performance advantages to capture market share [1][13] Industry Development History - The biogas engine industry in China has undergone five development stages, starting from initial development (1929-1978) to technology maturity (1979-2000), rapid development (2001-2006), balanced construction and management (2007-2014), and transformation and upgrading (2015-present) [4][5][6] Industry Chain - The upstream of the biogas engine industry chain includes raw materials and components such as cast iron, aluminum alloys, and various engine parts [9] - The midstream involves the production and manufacturing of biogas engines, while the downstream applications include power supply, thermal energy utilization, and transportation fuel [9] Current Industry Status - The cumulative installed capacity of biogas power generation in China reached 1.49 million kilowatts in 2023, a year-on-year increase of 22.13% [11] - The stability and economic viability of biogas power generation equipment have significantly improved due to breakthroughs in biogas purification and efficient combustion technologies [11] Key Enterprises - The biogas engine industry in China is characterized by low concentration and intense competition, with leading companies such as Shenzhen Wolbenda New Energy Co., Ltd. and Shengli Oilfield Power Machinery Co., Ltd. [17][19] - Shenzhen Wolbenda specializes in composite power energy solutions and has a strong market presence in biogas engines [19] - Shengli Oilfield is the largest gas engine manufacturer in China, with products widely used in various combustible gas fields [19] Industry Development Trends - The biogas engine industry is experiencing a wave of technological innovation and intelligent upgrades, focusing on high-efficiency combustion technology and low-emission control technology [23] - The market is diversifying, with applications expanding from traditional agricultural waste treatment to industrial wastewater treatment and biomass energy utilization [24] - Policy support and industry chain collaboration are crucial for the development of the biogas engine industry, with the government providing financial subsidies and tax incentives [25]