鉴于全球化石燃料所遇到的枯竭危机,对生物质燃料的开发和运用已经成为各国关注的要点。其中,沼气和生物天然气作为可再生动力,具有运用成本低、对环境无污染的特点,是代替常规化石动力的环保燃料。随着大型沼气、生物天然气工程的快速开展,沼气生物脱硫提纯为高附加值生物燃气的需求日益迫切,沼气净化提纯技能得到了不同程度的运用和开展。
In view of the global fossil fuel depletion crisis, the development and application of biomass fuel has become the focus of attention of all countries. Among them, biogas and biogas, as renewable power, have the characteristics of low cost and no pollution to the environment. They are high-quality environmental protection fuels to replace conventional fossil power. With the rapid development of large-scale biogas and bio natural gas projects, the demand for biogas biological desulfurization and purification to high value-added biogas is increasingly urgent. Biogas purification and purification skills have been applied and carried out in different degrees.
通过去除沼气中的杂质,来对沼气进行净化提纯,提纯后的甲烷气体浓度和焚烧热值,即可代替天然气用作城市管道燃气或者用作车用燃气,可以节省和代替很多化石动力,减少污染物和温室气体排放,大大提高了沼气工程的经济效益和沼气的深度运用。
By removing the impurities in biogas to purify and purify the biogas, the purified methane gas concentration and incineration calorific value can replace natural gas as urban pipeline gas or vehicle gas, which can save and replace a lot of fossil power, reduce pollutants and greenhouse gas emissions, and greatly improve the economic benefits of biogas project and the deep application of biogas.
沼气生物脱硫
Biogas biological desulfurization
在我国,现在沼气的生产加工技能和商业化运转体系也已经逐步成熟,通过自主立异、引入并消化吸收了国外成熟的高含固量的有机废弃物厌氧消化技能,其中以谷物秸秆、畜禽粪便、城市有机垃圾为处理对象的大型沼气工程也取得了突破性发展,因而,相应的沼气净化提纯工艺技能也得到开展,形成了一系列相对比较老练的技能。
In China, the production and processing skills and commercial operation system of biogas have gradually matured. Through independent innovation, introduction and digestion of foreign mature and advanced anaerobic digestion technology of high solid content organic waste, large-scale biogas projects with grain straw, livestock manure and urban organic waste as treatment objects have also made breakthrough development The technology of biogas purification and purification has also been carried out, forming a series of relatively sophisticated skills.
生物脱硫工艺是一种新式的脱硫工艺,越来越受到企业的欢迎。生物脱硫的基本原理是运用硫杆菌属和丝硫茵属类微生物代谢的效果,将硫化氢与氧气合成为硫酸盐进而除去沼气中的硫氢,脱硫产品硫酸盐。
Biological desulfurization process is a new desulfurization process, which is more and more welcomed by enterprises. The basic principle of biological desulfurization is to synthesize hydrogen sulfide and oxygen into sulfate by using the metabolic effect of Thiobacillus and Thiobacillus, and then remove the sulfur and hydrogen in biogas and desulfurize the product sulfate.
沼气生物脱硫虽然其运用较为快捷,运转成本较低,但由于脱硫过程中一起引入了杂质气体,在后续工序中无法去除,工艺还不够成熟,大多运用进口技能和设备,因而投资成本相对较高,大约为常规干法脱硫的3~5倍。
Although biogas biological desulfurization is relatively fast and has low operation cost, due to the introduction of impurity gas in the desulfurization process, it can not be removed in the follow-up process, and the process is not mature enough. Most of them use imported skills and equipment, so the investment cost is relatively high, which is about 3-5 times of that of conventional dry desulfurization.
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