煤气发电机组是以钢铁、化工等工业生产过程中产生的副产煤气——包括高炉煤气、焦炉煤气、转炉煤气、矿热炉煤气等——为燃料进行发电的专用设备。炼钢过程中产生的煤气占钢铁生产二次能源的一半以上，是行业节能降碳的主要目标。煤气发电机组正是解决这一“废气”资源化利用问题的核心装备。

Gas generator set is a specialized equipment that generates electricity using by-product gas generated in industrial production processes such as steel and chemical industry, including blast furnace gas, coke oven gas, converter gas, and ore blast furnace gas, as fuel. The gas generated during the steelmaking process accounts for more than half of the secondary energy used in steel production, and is the main goal of energy conservation and carbon reduction in the industry. The gas generator set is the core equipment to solve the problem of resource utilization of waste gas.

二、资源浪费问题：将“废气”变“绿电”

2、 The problem of resource waste: turning "waste gas" into "green electricity"

煤气发电机组解决的首要问题是工业副产煤气的巨大浪费。传统上，大量高炉煤气、转炉煤气被直接排空或简单燃烧，既浪费了宝贵的能源，又造成了环境污染。煤气发电机组通过出色燃烧这些低热值煤气，将其转化为电能，实现了“变废为宝”。以济柴动力在广东某钢厂的实践为例，10台转炉煤气发电机组搭配气体预处理、余热回收和尾气净化装置，已经稳定运行超过2800小时，煤气回收利用率高达99%。

The primary problem solved by gas generators is the huge waste of industrial by-product gas. Traditionally, a large amount of blast furnace gas and converter gas have been directly discharged or simply burned, which not only wastes valuable energy but also causes environmental pollution. Gas generators efficiently burn these low calorific value gases and convert them into electrical energy, achieving the goal of "turning waste into treasure". Taking the practice of Jichai Power in a steel plant in Guangdong as an example, 10 converter gas generator units equipped with gas pretreatment, waste heat recovery, and exhaust gas purification devices have been running stably for more than 2800 hours, with a gas recovery utilization rate of up to 99%.

三、能源效率问题：突破传统发电效率瓶颈

3、 Energy efficiency issue: breaking through the bottleneck of traditional power generation efficiency

煤气发电机组解决的第二个问题是传统煤气利用方式效率低下的瓶颈。钢铁企业普遍采用的“锅炉蒸汽驱动汽轮机发电”方式，在转换效率、产能适配和建设周期方面都存在明显短板。新型煤气发电技术通过提升主蒸汽参数至超高温/超高压乃至超高温/亚临界，并广泛应用中间一次再热技术，发电效率可达38%–40%，较传统中温中压机组提高约13个百分点。首钢工程公司的高参数小型化煤气发电技术，发电效率可达双超至亚临界水平。济柴动力的转炉煤气发电方案综合能源利用效率达44%，比传统发电解决方案提高近10个百分点。

The second problem solved by gas generators is the bottleneck of low efficiency in traditional gas utilization methods. The commonly used method of "boiler steam driven turbine power generation" in steel enterprises has obvious shortcomings in conversion efficiency, capacity adaptation, and construction period. The new gas power generation technology improves the main steam parameters to ultra-high temperature/ultra-high pressure or even ultra-high temperature/subcritical, and widely applies the intermediate reheating technology. The power generation efficiency can reach 38% -40%, which is about 13 percentage points higher than traditional medium temperature and medium pressure units. The high parameter miniaturized gas power generation technology of Shougang Engineering Company can achieve power generation efficiency ranging from double super to subcritical levels. The comprehensive energy utilization efficiency of Jichai Power's converter gas power generation solution reaches 44%, which is nearly 10 percentage points higher than traditional power generation solutions.

四、节能减排问题：助力“双碳”目标实现

4、 Energy conservation and emission reduction issues: helping achieve the "dual carbon" goal

煤气发电机组直接助力钢铁等高耗能行业实现“双碳”目标。煤气出色发电技术的应用，减少了钢铁企业对外购电力的依赖，间接提升了碳减排能力。以某钢厂为例，一年可回收电能1.2亿度，减少二氧化碳排放9.8万吨，直接创造经济效益5700多万元。首钢工程公司的超临界煤气发电技术发电效率可达43%-45.6%。涟钢超超临界煤气发电技术，单台150MW机组相比亚临界发电机组多节约标准煤约3.2万吨，减少二氧化碳排放约8.5万吨以上。

Gas generators directly assist high energy consuming industries such as steel in achieving their "dual carbon" goals. The application of high-efficiency gas power generation technology has reduced the dependence of steel enterprises on purchased electricity, indirectly enhancing their carbon emission reduction capabilities. Taking a certain steel plant as an example, it can recover 120 million kilowatt hours of electricity per year, reduce carbon dioxide emissions by 98000 tons, and directly create economic benefits of over 57 million yuan. The power generation efficiency of Shougang Engineering Company's supercritical gas power generation technology can reach 43% -45.6%. Liangang's ultra supercritical gas power generation technology saves about 32000 tons of standard coal and reduces carbon dioxide emissions by more than 85000 tons per 150MW unit compared to subcritical power generation units.

五、建设周期与投资回报问题

5、 Construction period and investment return issues

煤气发电机组还解决了传统发电项目建设周期长、投资回收慢的问题。新型煤气发电机组从设计到投产只需4到6个月，比传统技术方案建设时间少60%，资金回收期缩短到1.5年。机组容量覆盖35MW至150MW，可灵活匹配不同规模钢铁企业的煤气资源量和场地条件，尤其适合老旧机组升级改造或新建分布式能源站。

Gas generator sets also solve the problems of long construction cycles and slow investment recovery in traditional power generation projects. The new gas-fired power generation unit only takes 4 to 6 months from design to operation, which is 60% less than the construction time of traditional technical solutions, and the payback period is shortened to 1.5 years. The unit capacity covers 35MW to 150MW, which can flexibly match the gas resources and site conditions of different scale steel enterprises, especially suitable for upgrading and renovating old units or building new distributed energy stations.

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