沼氣脫硫 -三、干法、濕法、生物脫硫的比較
Biogas desulfurization - Comparison of dry, wet and biological desulfurization
1.干法脫硫的特點(diǎn)
1. Characteristics of dry desulfurization
?、俳Y(jié)構(gòu)簡(jiǎn)單，使用方便。
?、?The structure is simple and easy to use.
?、诠ぷ鬟^程中無需人員值守，定期換料，一用一備，交替運(yùn)行。
?、?In the process of operation, there is no need for one on duty.
③脫硫率新原料時(shí)較高，后期有所降低。
?、?The desulfurization rate of new raw materials was higher than that of new raw materials, but decreased in the later stage.
?、芘c濕式相比，需要定期換料。
④ Periodic refuelling is required compared to wet.
?、葸\(yùn)行費(fèi)用偏高。
?、?The operation cost is high.
2.濕法脫硫的特點(diǎn)
2. Characteristics of wet desulfurization
?、僭O(shè)備可長(zhǎng)期不停的運(yùn)行，連續(xù)進(jìn)行脫硫。
?、?The equipment can operate continuously for a long time.
?、谟肞H值來保持脫硫效率，運(yùn)行費(fèi)用低。
?、?Using pH value to keep desulfurization efficiency is low.
?、酃に噺?fù)雜需要專人值守。
?、?The process is complex and requires special personnel on duty.
④設(shè)備需保養(yǎng)。
?、?The equipment needs maintenance.
3.生物脫硫的特點(diǎn)
3. Characteristics of biological desulfurization
①不需催化劑和氧化劑(空氣除外)。
① No catalyst and oxidant (except air) is required.
?、诓恍杼幚砘瘜W(xué)污泥。
② There is no need to treat chemical sludge.
?、郛a(chǎn)生很少生物污染，低能耗，回收硫，效率高，無臭味。
?、?It produces little biological pollution, low energy consumption, sulfur recovery, high efficiency and no odor.
④缺點(diǎn)是過程不易控制，條件要求苛刻等。
?、?The disadvantages are that the process is not easy to control and the conditions are demanding.
脫硫劑怎樣進(jìn)行再生？
How to regenerate desulfurizer?
脫硫劑再生的方法是：將失去活性的脫硫劑取出，均勻疏松地?cái)偡旁谄秸?、干凈、背陽、通風(fēng)的場(chǎng)地，經(jīng)常翻動(dòng)脫硫劑，使其與空氣充分接觸，氧化再生。
The regeneration method of desulfurizer is as follows: take out the deactivated desulfurizer, spread it evenly and loosely in a flat, clean, sunny and ventilated place, and often turn the desulfurizer to make it fully contact with the air for oxidation regeneration.
沼氣脫硫 - 脫硫技術(shù)特點(diǎn)：
Characteristics of biogas desulfurization desulfurization technology:
1、天然氣凈度可根據(jù)實(shí)際需要調(diào)節(jié)，可以平穩(wěn)的控制煤氣中的H2S的含量。
1. The purity of natural gas can be adjusted according to the actual needs, and the content of H2S in the gas can be controlled smoothly.
2、與干法脫硫相比，雖然投資是干法脫硫的2-3倍，但是運(yùn)行成本低，1000Nm?實(shí)際脫硫費(fèi)用為4元左右，避免了干式脫硫系統(tǒng)因脫硫劑再生后脫硫效果差及硫的吸附等原因而導(dǎo)致的生產(chǎn)成本增加的問題。
2. Compared with dry desulfurization, although the investment is 2-3 times of that of dry desulfurization, the operation cost is low. The actual desulfurization cost of 1000nm? Is about 4 yuan, which avoids the production cost increase of dry desulfurization system due to poor desulfurization effect after regeneration of desulfurizer and sulfur adsorption.
3、具有操作穩(wěn)定、運(yùn)行安全，脫硫效率高的特點(diǎn)。脫硫效率可達(dá)到97%以上,脫硫后煤氣中H2S含量<50mg/Nm3。
3. It has the characteristics of stable operation, safe operation and high desulfurization efficiency. The desulfurization efficiency can reach more than 97%, and the content of H2S in the gas after desulfurization is less than 50mg / Nm3.
4、如果脫硫催化劑是PDS或’888’,不但能脫除H2S而且能脫煤氣中占總硫含硫10%左右的部分有機(jī)硫。
4. If the desulfurization catalyst is PDS or '888', not only H2S can be removed, but also some organic sulfur which accounts for about 10% of the total sulfur in the gas can be removed.
濕法天然氣脫硫技術(shù)適用范圍：
Application scope of wet natural gas desulfurization technology:
適用于各種煤氣、沼氣和天然氣的脫硫(H2S)。
It is suitable for desulfurization (H2S) of gas, biogas and natural gas.
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2020-07-15
