天然氣加臭劑丙烯酸甲酯氣相色譜儀 燃?xì)饧映糇鳛槿細(xì)夤镜闹鲃?dòng)安全保障措施之一,得到了人們的高度重視。目前常用的加臭劑是四氫噻吩(THT)和硫醇混合物(TBM),這兩種加臭劑都含有硫(S)元素,燃燒時(shí)會(huì)產(chǎn)生S02氣體,影響燃?xì)馊紵馁|(zhì)量,對(duì)一些工業(yè)用戶的產(chǎn)品質(zhì)量也會(huì)造成影響,同時(shí)污染環(huán)境。隨著人們對(duì)清潔能源的要求不斷提高,對(duì)天然氣中含硫量的控制不斷加強(qiáng),使用無硫加臭劑成為今后的發(fā)展趨勢。
無硫加臭劑與常規(guī)加臭劑功能一樣,是一種能夠起到警示作用的物質(zhì),與天然氣混合能力強(qiáng),在燃?xì)夤艿乐谐蕷鈶B(tài),不具有腐蝕性,在燃燒時(shí)不會(huì)對(duì)人體和環(huán)境產(chǎn)生危害。
無硫加臭劑是有強(qiáng)烈刺激性氣味的無色透明液體,是由C4H6O2(丙烯酸甲酯)、C5H8O2(丙烯酸乙酯)、C7H10N2(3-乙基-2甲基吡嗪)和C15H240(2,6-二叔丁基對(duì)酚)組成的混合物,各組分的質(zhì)量分?jǐn)?shù)分別為37.4%、60.0%、2.5%和0.1%。無硫加臭劑的相對(duì)分子質(zhì)量為95.543,常壓下的沸點(diǎn)為80℃,熔點(diǎn)為-80℃,自燃溫度為395℃,爆炸限為1.6%~23.0%,不溶于水,可溶于乙醇。無硫加臭劑不含硫,燃燒產(chǎn)物對(duì)環(huán)境無污染。
滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司,與時(shí)俱進(jìn),以科學(xué)發(fā)展為為指導(dǎo),在王曉瑩經(jīng)理的帶領(lǐng)下,依托翔鷹分析技術(shù),色譜工程研究所,分析與測試中心3個(gè)科研單位,研發(fā)出《天然氣加臭劑丙烯酸甲酯氣相色譜儀》,成功測定了天然氣中丙烯酸甲酯和丙烯酸乙酯加臭劑,結(jié)果滿意。
天然氣加臭劑丙烯酸甲酯氣相色譜儀測定譜圖:
Natural gas odorant methyl acrylate gas chromatograph
Gas odor is one of the active safety measures taken by gas companies, and has received great attention. At present, the commonly used odorants in China are tetrahydrothiophene (THT) and thiol mixture (TBM). Both of these odorants contain sulfur (S) element, which will generate S02 gas during combustion, affecting the quality of gas combustion. The product quality of some industrial users also affects and pollutes the environment. As people's requirements for clean energy continue to increase, and the control of sulfur content in natural gas is constantly strengthened, the use of sulfur-free odorants has become a future development trend.
The sulfur-free odorant has the same function as the conventional odorant, it is a substance that can play a warning role, has strong mixing ability with natural gas, is gaseous in the gas pipeline, non-corrosive, and will not affect the human body and the environment when burning. Harmful.
Sulfur-free odorant is a colorless and transparent liquid with a strong pungent odor. It is composed of C4H6O2 (methyl acrylate), C5H8O2 (ethyl acrylate), C7H10N2 (3-ethyl-2 methylpyrazine), and C15H240 (2, 6-di-tert-butyl-p-methylphenol), the mass fraction of each component is 37.4%, 60.0%, 2.5% and 0.1%, respectively. The relative molecular mass of the sulfur-free odorant is 95.543, the boiling point at atmospheric pressure is 80 ° C, the melting point is -80 ° C, the spontaneous combustion temperature is 395 ° C, the explosion limit is 1.6% to 23.0%, it is insoluble in water and soluble in ethanol. The sulfur-free odorant does not contain sulfur, and the combustion products have no pollution to the environment.
Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd. advances with the times and is guided by scientific development. Under the leadership of Manager Wang Xiaoying, relying on Xiangying Analytical Technology, Chromatographic Engineering Research Institute, Analysis and Test Center, 3 research units, research and development The Natural Gas Deodorant Methyl Acrylate Gas Chromatograph was published. The methyl acrylate and ethyl acrylate odorants in natural gas were successfully measured with satisfactory results.
Gas chromatograph of natural gas odorant methyl acrylate: