目前沼气还无法应用压缩储存。不是技术问题,主要是经济利用价值低。沼气的单位经济价值比较低,而且不能高密度储存。
At present, biogas can not be compressed. It's not a technical problem, it's mainly a low economic value. The unit economic value of biogas is relatively low, and it can not be stored in high density.
例如:当沼气压缩到50倍后,里面的二氧化碳很容易在密闭的钢瓶中液化或者固化,因此很少在市场上使用压缩液化沼气。由于受市场因素及其他因素有限,目前还不能实现规模化沼气压缩储存。相信在不久的将来沼气提纯压缩储存一定会得到广泛的普及应用,走向市场。
For example, when the biogas is compressed to 50 times, the carbon dioxide in it is easy to liquefy or solidify in a closed steel cylinder, so compressed liquefied biogas is rarely used in the market. Due to the limited market factors and other factors, the large-scale compressed storage of biogas can not be realized at present. It is believed that in the near future, biogas purification and compression storage will be widely used in the market.
沼气是有机物质在厌氧环境中,在一定的温度、湿度、酸碱度的条件下,通过微生物发酵作用,产生的一种可燃气体。由于这种气体开初是在沼泽、湖泊、池塘中发现的,所以人们称为沼气。沼气含有多种气体,主要成分是甲烷(CH4)。是一种很好的清洁燃料。
Biogas is a kind of combustible gas produced by microbial fermentation under certain temperature, humidity and pH in anaerobic environment. Because this gas was initially found in swamps, lakes and ponds, it is called biogas. Biogas contains a variety of gases, the main component is methane (CH4). It's a good clean fuel.
沼气产生的化学方程式:
The chemical equation of biogas production is as follows:
①由CO2和H2产生甲烷反应为 :CO2 4H2—CH4 H2O
① The reaction of methane from CO2 and H2 is CO2 4h2-ch4h2o
② 由乙酸或乙酸化合物产生甲烷反应为:
② The reaction of methane from acetic acid or acetic acid compound is as follows:
CH3C00H—CH4 CO2 CH 3COONH4 H20—CH4 NH4 HCO3
CH3C00H—CH4 CO2 CH 3COONH4 H20—CH4 NH4 HCO3