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沼气制天然气新工艺新技术介绍

通过对沼气进行脱硫、脱碳、脱水等一系列净化处理,即可制得清洁无污染的天然气,使其燃烧热值大幅提升。脱碳尾气还可以制取液体二氧化碳,从而可以将沼气进行充分有效的利用,且不会产生二次污染。

By performing a series of purification treatments such as desulfurization, decarbonization, and dehydration on biogas, clean and pollution-free natural gas can be produced, greatly increasing its combustion heat value. Decarburization tail gas can also produce liquid carbon dioxide, which can fully and effectively utilize biogas without generating secondary pollution.
根据终目标产品的要求,采用本公司技术,可将沼气制得天然气,直接输送至天然气管网作为民用燃气;或通过将天然气压缩至20~25MPa制得CNG(车用压缩天然气)作为车用燃料;也可以将产品气深冷液化并终制得LNG(液化天然气)。
According to the requirements of the final target product, using our company's technology, biogas can be converted into natural gas and directly transported to the natural gas pipeline network as civilian gas; Or CNG (compressed natural gas for vehicles) is made by compressing natural gas to 20~25MPa as vehicle fuel; The product gas can also be deeply cooled and liquefied to ultimately produce LNG (liquefied natural gas).
技术转让、工程设计、部分硬件或工程总承包。联络:六鉴投资网
Technology transfer, engineering design, partial hardware or general engineering contracting. Contact: Liujian Investment Network
二、工艺概述
2、 Process Overview
沼气制CNG的过程,其实就是一系列净化过程及终升压过程。
The process of producing CNG from biogas is actually a series of purification processes and the final boosting process.
沼气提纯
1.硫含量过高则会腐蚀设备和管道,降低其使用寿命;
1. If the sulfur content is too high, it will corrode equipment and pipelines, reducing their service life;
2.CO2存在量越多则气体热值越低;
2. The more CO2 there is, the lower the calorific value of the gas;
3.水的存在会造成管道腐蚀,形成水合物限制或堵塞管线中气体的流动,甚至会使燃烧器熄火;
3. The presence of water can cause pipeline corrosion, form hydrates to restrict or block the flow of gas in the pipeline, and even cause the burner to shut down;
4.由于沼气通过是在厌氧环境下产生的,O2含量一般不会超标,但需注意CNG标准中要求净化后O2含量不得高于0.5%;
4. As biogas is generated in an anaerobic environment, the O2 content generally does not exceed the standard, but it should be noted that the CNG standard requires that the O2 content after purification should not exceed 0.5%;
5.在天然气管道输送过程中,水分在低温下冷凝成液体,会减少管道截面积,增加输送过程阻力和能耗,甚至结冰堵塞管道;另外水的存在会加速硫化物对设备的腐蚀;
During the transportation of natural gas pipelines, water condenses into liquid at low temperatures, which reduces the cross-sectional area of the pipeline, increases the resistance and energy consumption during the transportation process, and even freezes and blocks the pipeline; The presence of external water can accelerate the corrosion of equipment by sulfides;
6.其它微量的N2、H2等在不影响天然气标准要求的热值时,可不予脱除。
6. Other trace amounts of N2, H2, etc. may not be removed when they do not affect the calorific value required by natural gas standards.
根据原料沼气相关参数及产品要求分析,原料沼气可依次进行脱硫、加压干燥、脱碳、CNG增压等工序,即可获得产品:车用压缩CNG。
According to the analysis of relevant parameters and product requirements of raw material biogas, the raw material biogas can be sequentially subjected to processes such as desulfurization, pressurized drying, decarbonization, and CNG pressurization to obtain the product: compressed CNG for vehicles.

相关产品 我们的存在,是为了更好的服务于沼气等可燃气体净化及利用行业