沼氣脫硫器,是一種沼氣運(yùn)轉(zhuǎn)裝置,其特性在于脫硫瓶?jī)?nèi)的進(jìn)氣口上銜接一個(gè)懸空的多孔管,多孔管盡可以長(zhǎng)地橫向伸入脫硫瓶?jī)?nèi)腔,多孔管上密布小孔,小孔的孔徑小于氧化鐵小顆粒的直徑。利益在于多孔管的設(shè)置,使與氧化鐵小顆粒之間的出氣道面積大為增大,則出氣量大;其次水分部分泡爛氧化鐵顆粒但仍能留存部分出氣孔;再次在于多孔管懸空設(shè)置,使脫硫瓶?jī)?nèi)水分積壓在懸空多孔管下方,不容易泡爛多孔管周邊的氧化鐵顆粒。
A biogas desulfurizer is a biogas operating device characterized by a suspended porous pipe connected to the inlet of the desulfurization bottle. The porous pipe can extend horizontally into the inner cavity of the desulfurization bottle as long as possible, and the porous pipe is densely covered with small holes, with a pore size smaller than the diameter of small iron oxide particles. The benefit lies in the setting of porous pipes, which greatly increases the area of the air outlet between small iron oxide particles and results in a large air output; Secondly, some of the water soaked iron oxide particles but still retained some of the air vents; Once again, the porous tube is suspended to prevent the accumulation of water in the desulfurization bottle below the suspended porous tube, making it difficult to soak the iron oxide particles around the porous tube.
沼氣脫硫器干發(fā)脫硫是一種簡(jiǎn)易而的脫硫辦法,一般情況下適宜用于沼氣儲(chǔ)氣量小,硫化氫濃度低的沼氣脫硫。干法脫除沼氣氣體中硫化氫(H2S)的配備根底原理是以O(shè)2使H2S 氧化成硫或硫氧化物的一種辦法,也可稱(chēng)為干式氧化法。干法配備的構(gòu)成是,在一個(gè)容器內(nèi)放入填料,填料層有活性炭、氧化鐵等。氣體以低流速?gòu)囊欢私?jīng)過(guò)容器內(nèi)填料層,硫化氫(H2S)氧化成硫或硫氧化物后,余留在填料層中,污染后氣體沉著器另一端排出。
The dry desulfurization of biogas desulfurizer is a simple and effective desulfurization method, which is generally suitable for biogas desulfurization with small storage capacity and low hydrogen sulfide concentration. The fundamental principle of the dry method for removing hydrogen sulfide (H2S) from biogas gas is a method of using O2 to oxidize H2S into sulfur or sulfur oxides, also known as the dry oxidation method. The composition of the dry method equipment is to place fillers in a container, with a filler layer consisting of activated carbon, iron oxide, etc. The gas passes through the filling layer of the container at a low flow rate from one end, and hydrogen sulfide (H2S) is oxidized to sulfur or sulfur oxides, remaining in the filling layer. After contamination, the gas is discharged from the other end of the sedimenter.
沼氣脫硫器干式脫硫重要包括主體鋼結(jié)構(gòu)、脫硫劑填料、觀察窗、壓力表、溫度表等組件。脫硫塔一般規(guī)劃為一用一備,替換運(yùn)用,即一個(gè)脫硫,一個(gè)再生。
The dry desulfurization of biogas desulfurizer mainly includes components such as the main steel structure, desulfurizer filler, observation window, pressure gauge, temperature gauge, etc. The desulfurization tower is generally planned as one for use and one for backup, with alternative use, i.e. one for desulfurization and one for regeneration.
干法脫硫步: Fe2O3 · H2O + 3 H2S = Fe2S3 + 4 H2O (脫硫)
Dry desulfurization step: Fe2O3 · H2O+3 H2S=Fe2S3+4 H2O (desulfurization)
二步: Fe2S3 + 3÷2 O2 + 3 H2O = Fe2O3 · H2O + 2 H2O + 3 S(再生)
Step 2: Fe2S3+3 ÷ 2 O2+3 H2O=Fe2O3 · H2O+2 H2O+3 S (regeneration)
富含硫化氫的沼氣與底部入口處荷載高的脫硫劑反映,反映器上部是負(fù)載低的脫硫劑層,經(jīng)過(guò)規(guī)劃的沼氣空速和線速,干式脫硫能抵達(dá)的精脫硫結(jié)果。
The biogas rich in hydrogen sulfide is reflected by the desulfurizer with high load at the bottom inlet, and the upper part of the reflector is a low load desulfurizer layer. After planning the biogas airspeed and line speed, the fine desulfurization results can be achieved through dry desulfurization.
在沼氣進(jìn)入干式脫硫塔之前,應(yīng)設(shè)置有冷凝水罐或沼氣顆粒過(guò)濾器。該裝置可以鏟除沼氣中攙和的顆粒雜志,并使得沼氣在進(jìn)入脫硫前富含必定濕度。
Before biogas enters the dry desulfurization tower, a condensate tank or biogas particle filter should be installed. This device can remove particles mixed in biogas and make biogas rich in certain humidity before entering desulfurization.
當(dāng)觀察到脫硫劑變色,或系統(tǒng)壓力喪失過(guò)大時(shí),應(yīng)替換運(yùn)用另一個(gè)脫硫塔。以后的脫硫塔在沼氣放空后,進(jìn)行天然通風(fēng),對(duì)脫硫劑進(jìn)行再生。當(dāng)再失結(jié)果欠安時(shí),應(yīng)從塔體底部將廢棄的脫硫劑鏟除,在底部排放廢棄填料的同時(shí),雷同體積的新穎脫硫填料參與反映器中。
When discoloration of the desulfurization agent or excessive loss of system pressure is observed, another desulfurization tower should be used instead. After the methane is released, the future desulfurization tower will undergo natural ventilation to regenerate the desulfurization agent. When the results are not satisfactory, the waste desulfurizer should be removed from the bottom of the tower body. At the same time as the waste filler is discharged from the bottom, novel desulfurizer fillers of the same volume should be included in the reactor.
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