焦炉煤气净化作为焦炉炼焦的配套工艺，其布局与焦炉一致，受上游焦煤资源和下游钢铁资源布局的影响；国内煤气净化业务存在北重南轻、西重东轻的特点，主要围绕上游资源端布局。

As a supporting process for coke oven coking, the layout of coke oven gas purification is consistent with that of coke oven, and is influenced by the layout of upstream coking coal resources and downstream steel resources; The domestic gas purification business has the characteristics of being heavy in the north and light in the south, heavy in the west and light in the east, mainly focusing on the upstream resource side layout.

1、行业的周期特性焦炉煤气净化作为炼焦的配套工艺，其周期性受炼焦、钢铁行业影响大。在工业化阶段，钢铁作为重化工产业，受固定资产投资、政策调控的影响，存在一定的周期性。但随着中国经济进入工业化后期阶段，固定资产投资经过高速增长阶段后，其周期波动性趋弱；同时随着钢铁和焦化行业去产能的推进，焦炉煤气净化供需两端周期性变动趋弱。

1. The cyclical characteristics of the industry: As a supporting process for coking, coke oven gas purification is greatly influenced by the coking and steel industries in terms of its periodicity. In the industrialization stage, as a heavy chemical industry, steel has a certain periodicity due to the impact of fixed assets investment and policy regulation. However, as China's economy has entered the late stage of industrialization, the cyclical volatility of fixed assets investment has weakened after the rapid growth stage; At the same time, with the promotion of capacity reduction in the steel and coking industries, the cyclical changes in the supply and demand of coke oven gas purification are weakening.

2、焦炉煤气净化服务行业发展现状焦炉煤气净化是将炼焦过程中产生的荒煤气加工处理或精制，除去荒煤气中的焦油雾、氨、苯类、轻油、硫化物、氰化物、萘和煤气中的液体（即冷凝氨水等）等大量杂质，最终获得以氢气、甲烷等不凝性气体为主且符合工业或民用标准的精制焦炉煤气工艺过程。煤气净化工艺是伴随着国内焦炉环保政策趋严、深加工副产品价值重视而逐步普及发展起来的配套工艺；

2. The current development status of the coke oven gas purification service industry. Coke oven gas purification is the process of processing or refining the raw gas generated during the coking process, removing a large amount of impurities such as tar mist, ammonia, benzene, light oil, sulfides, cyanides, naphthalene, and liquid in the gas (i.e. condensed ammonia water, etc.), and ultimately obtaining a refined coke oven gas process that mainly produces non condensable gases such as hydrogen and methane and meets industrial or civilian standards. The gas purification process is a supporting technology that has gradually become popular and developed with the tightening of domestic coke oven environmental protection policies and the emphasis on the value of deep processing by-products;

焦化厂自备电厂：焦化企业在生产焦炭过程中会产生大量焦炉煤气（富含氢气、甲烷等可燃成分）。传统方式可能直接排放或点燃放散（“点天灯”），而发电机组可将其转化为电能，供厂区自用或并网销售。

Coking plant self owned power plant: Coking enterprises produce a large amount of coke oven gas (rich in combustible components such as hydrogen and methane) during the production of coke. The traditional method may directly discharge or ignite the discharge ("sky light"), while the generator set can convert it into electrical energy for the factory's own use or grid connected sales.

从 2004 年国家首次公布《焦化准入条件》，明确规定新建或改造焦炉要同步配套建设煤气净化设施。近十多年来我国焦炉煤气净化工艺通过不断引进国外先进技术和创新发展，已经步入世界先进行列。目前国内常规焦炉和半焦炉已全部配套煤气净化工艺。从业务属性来看，煤气净化及加工原材料来源于焦炉煤气，产品精制煤气用于工业和民用领域，工业领域主要为轧钢、炼钢使用。

Since the first announcement of the "Coking Access Conditions" by the government in 2004, it has been clearly stipulated that the construction or renovation of coke ovens must be accompanied by the construction of gas purification facilities. In the past decade, China's coke oven gas purification process has entered the world's advanced ranks through continuous introduction of advanced foreign technologies and innovative development. At present, all conventional coke ovens and semi coke ovens in China are equipped with gas purification processes. From the perspective of business attributes, the raw materials for gas purification and processing come from coke oven gas, and the refined gas products are used in industrial and civilian fields. The industrial field mainly uses steel rolling and steelmaking.

焦炉煤气净化作为焦炉炼焦的配套工艺，目前国内焦炉项目新建均需要产能置换，目前各地政策均采取“等量或减量置换”的方式。受此影响，国内焦炉及其煤气净化业务存在较高的行业准入壁垒。

As a supporting process for coke oven coking, coke oven gas purification requires capacity replacement for new coke oven projects in China. Currently, policies in various regions adopt the method of "equal or reduced replacement". As a result, there are high industry entry barriers for domestic coke ovens and their gas purification businesses.

焦化设施一次性投资较高，工艺和设备的选择对装置投产后的安全、稳定和环保运行非常关键，需要雄厚的资金实力和专业技术力量支持，因此存在一定的资金壁垒和技术壁垒。

The one-time investment in coking facilities is relatively high, and the selection of processes and equipment is crucial for the safe, stable, and environmentally friendly operation of the equipment after it is put into operation. It requires strong financial and professional technical support, so there are certain financial and technical barriers.

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