天然氣作為一種潔凈、方便、高能的優(yōu)量燃料，同時也是重要的化工原料，在人們?nèi)粘Ｉ钜约肮S生產(chǎn)中起著越來越重要的作用。自上世紀(jì)60年代以來，隨著國民經(jīng)濟(jì)高速發(fā)展以及對能源需求的大幅增長，我國天然氣工業(yè)得到了快速發(fā)展。天然氣分為含硫天然氣和不含硫天然氣，含硫天然氣必須經(jīng)過凈化處理才能作為商品天然氣進(jìn)行銷售。
As a clean, convenient and high-energy fuel, natural gas is also an important chemical raw material, which plays an increasingly important role in people's daily life and factory production. Since the 1960s, with the rapid development of national economy and the substantial growth of energy demand, China's natural gas industry has developed rapidly. Natural gas is divided into sour natural gas and non sour natural gas. Sour natural gas must be purified before it can be sold as commercial natural gas.
含硫天然氣，被稱為“粗天然氣”。它的處理過程包括脫硫脫碳、硫黃回收以及尾氣處理等。脫硫脫碳是為了獲得清潔的天然氣，硫黃回收以及尾氣處理可以將有毒有害物質(zhì)轉(zhuǎn)化為副產(chǎn)品——硫黃，滿足環(huán)保要求，真正實現(xiàn)“變廢為寶”。
Sour natural gas is called "crude natural gas". Its treatment process includes desulfurization and decarbonization, sulfur recovery and tail gas treatment. Desulfurization and decarbonization is to obtain clean natural gas. Sulfur recovery and tail gas treatment can transform toxic and harmful substances into by-product sulfur, meet the requirements of environmental protection, and truly realize "turning waste into treasure".
經(jīng)過50多年的持續(xù)攻關(guān)，西南油氣田研發(fā)出一系列針對不同氣質(zhì)條件和處理要求的工藝技術(shù)。根據(jù)不同含硫量，劃分“高、中、低”3類氣質(zhì)，開發(fā)出醇胺法脫硫脫碳、液相氧化還原脫硫、固體脫硫、生物脫硫等技術(shù)，完善了天然氣脫硫脫碳配套技術(shù)。含有硫化氫等雜質(zhì)的天然氣進(jìn)行脫硫脫碳處理后，還需進(jìn)行脫水處理，滿足國家標(biāo)準(zhǔn)后，正式成為商品天然氣進(jìn)入管網(wǎng)供應(yīng)。
After more than 50 years of continuous research, southwest oil and gas field has developed a series of technologies for different gas quality conditions and treatment requirements. According to different sulfur content, three kinds of gas quality are classified as "high, medium and low". Technologies of desulfurization and decarbonization by alcohol amine method, liquid phase oxidation-reduction desulfurization, solid desulfurization and biological desulfurization are developed, and supporting technologies of natural gas desulfurization and decarbonization are improved. After desulfurization and decarbonization treatment, natural gas containing hydrogen sulfide and other impurities also needs dehydration treatment. After meeting the national standards, it officially becomes commercial natural gas and enters the pipeline network for supply.
通過脫硫脫碳環(huán)節(jié)處理再生析出的含硫化氫氣體被富集起來，統(tǒng)稱為“酸氣”。酸氣大多進(jìn)入硫黃回收及尾氣處理裝置進(jìn)行回收，會變成硫黃產(chǎn)品。西南油氣田開發(fā)的硫黃回收技術(shù)包括：常規(guī)克勞斯技術(shù)、有機(jī)硫水解技術(shù)、H2S選擇性氧化技術(shù)及常規(guī)/低溫加氫水解技術(shù)等，根據(jù)氣質(zhì)條件和經(jīng)濟(jì)合理性，運(yùn)用不同的技術(shù)組合，將“酸氣”中的硫化氫通過經(jīng)典克勞斯反應(yīng)（H2S與SO2反應(yīng)生成單質(zhì)硫）和有機(jī)硫水解反應(yīng)轉(zhuǎn)化成硫黃未轉(zhuǎn)化的含硫化合物，進(jìn)入到尾氣處理環(huán)節(jié)灼燒，實現(xiàn)達(dá)標(biāo)排放。
The gas containing hydrogen sulfide is enriched by desulfurization and decarbonization, which is called "acid gas". Most acid gas enters sulfur recovery and tail gas treatment unit for recovery, which will turn into sulfur products. Sulfur recovery technologies in southwest oil and gas field development include conventional Claus technology, organic sulfur hydrolysis technology, H2S selective oxidation technology and conventional / low temperature hydrohydrolysis technology, etc, Hydrogen sulfide in "sour gas" is converted into sulfur compounds not converted by sulfur through classical Claus reaction (hydrogen sulfide reacts with SO2 to generate elemental sulfur) and hydrolysis reaction of organic sulfur, and then enters into tail gas treatment link for burning, so as to achieve standard emission.
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企業(yè)二維碼
2021-07-07
