青島LNG接收站BOG工藝處理技術及優(yōu)化方案
發(fā)布時間：2018-07-24 13:05
【摘要】：LNG即為液化天然氣因其體積小易于運輸與儲存在現(xiàn)階段全球能源消費中被公認為最清潔的理想能源之一。青島LNG接收站位于山東省青島市西海岸經(jīng)濟技術開發(fā)區(qū)的董家口港,是中國“十一五”重點規(guī)劃項目,也是中國石化第一座LNG接收站。青島LNG接收站根據(jù)市場需求分兩期建設,已于2014年11月投產(chǎn)建設了規(guī)模為每年300×10~4t的一期工程,供氣能力達到每年40.5×10~8m~3。目前已規(guī)劃并開展建設規(guī)模為每年500×10~4m~3,供氣能力達每年67×10~8m~3的二期建設,遠期建設規(guī)模達到每年1000×10~4t,供氣能力達每年135x10~8m~3。接收站一期工程包括3臺16×10~4m~3LNG儲罐工程、配套的LNG站場工藝工程,包括LNG接卸、氣化、增壓、輸送、計量等系統(tǒng),同時現(xiàn)已投入生產(chǎn)的年處理200×10~4t的LNG富液的輕烴回收系統(tǒng)、利用LNG冷能日產(chǎn)600t(液氧、液氮、液氬)的空氣分離系統(tǒng)以及LNG場站內(nèi)外的公用工程系統(tǒng)。本文以BOG工藝處理進行了詳細的介紹,確定以青島LNG接收站BOG的工藝處理作為本次的研究對象。利用體積平衡法及HYSYS作為計算及模擬工具對現(xiàn)有的BOG處理工藝進行了研究分析,并根據(jù)青島LNG接收站實際運營情況制定了BOG優(yōu)化方案。首先,通過對國內(nèi)外LNG接收站BOG工藝處理方式的研究現(xiàn)狀進行了調(diào)研并分析,從能耗及工藝兩方面出發(fā)對常見的BOG直接壓縮工藝及BOG再冷凝工藝進行了分析對比。其次,本文通過應用體積平衡方法模擬在卸船和非卸船工況下各項設備的工藝參數(shù)計算得出了青島LNG接收站產(chǎn)生的BOG的總量。再者本文從熱力學角度出發(fā),通過自接收站投產(chǎn)到2016年8月底的各項生產(chǎn)數(shù)據(jù)及BOG處理量等工藝參數(shù)對泵和壓縮機的功耗以及對流程性能參數(shù)的影響,進行了對現(xiàn)階段青島LNG接收站BOG工藝處理的適應性分析,并總結(jié)得出現(xiàn)階段BOG工藝處理方式存在的問題以及提出從合理配置設備和調(diào)整工藝參數(shù)兩方面出發(fā)的BOG優(yōu)化方法。最后,針對青島LNG接收站存在的靠船審批和下游市場等綜合因素對BOG工藝處理的影響,從工藝流程、結(jié)構(gòu)設計、電氣電信改造等幾方面出發(fā)制定了青島LNG接收站的BOG處理優(yōu)化方案,并從經(jīng)濟的角度進行了方案的可行性研究,按保守估計現(xiàn)階段的處理工藝因造成大量放空,經(jīng)濟損失達3770萬元且將造成大氣污染,本文設計的BOG工藝處理優(yōu)化方案建成投產(chǎn)后每年能節(jié)省生產(chǎn)成本約1542萬元從而使得接收站的各項裝置能夠平穩(wěn)、經(jīng)濟地運行。
[Abstract]:LNG is one of the cleanest ideal energy sources in the global energy consumption due to its small size and easy transportation and storage. Qingdao LNG receiving Station is located in Dongjiakou Port of the Economic and technological Development Zone on the west coast of Qingdao City, Shandong Province. It is a key project of China's 11th Five-Year Plan and the first LNG receiving station of Sinopec. Qingdao LNG receiving station has been built in two phases according to market demand, and has been put into production in November 2014. The first stage project with a scale of 300 脳 10 ~ (4) t per year has been put into production, and the gas supply capacity has reached 40.5 脳 10 ~ (10) ~ 8 m ~ (-1) / a. At present, the construction scale is 500 脳 10 ~ (4) m ~ (3) per year, the gas supply capacity is 67 脳 10~8m~3 per year, the long-term construction scale is 1000 脳 10 ~ (4) t and the annual gas supply capacity is 135 脳 10 ~ (8) m ~ (3). The first stage project of the receiving station includes three 16 脳 10~4m~3LNG storage tanks, and a complete set of LNG station process engineering, including LNG unloading, gasification, pressurization, transportation, metering and so on. At the same time, the light hydrocarbon recovery system with rich liquid of LNG, which is now in production, has been put into production at the same time. The air separation system with the daily output of 600t (liquid oxygen, liquid nitrogen, liquid argon) and the public engineering system inside and outside the LNG station are used in LNG cold energy production. In this paper, the BOG process is introduced in detail, and the process of Qingdao LNG receiving station BOG is selected as the object of this study. The existing BOG treatment process is studied and analyzed by volume balance method and HYSYS as a calculation and simulation tool, and the BOG optimization scheme is established according to the actual operation of Qingdao LNG receiving station. Firstly, the research status of BOG process at LNG receiving station at home and abroad is investigated and analyzed, and the common BOG direct compression process and BOG recondensation process are analyzed and compared from the aspects of energy consumption and process. Secondly, the total amount of BOG produced by Qingdao LNG receiving station is calculated by using volume balance method to simulate the process parameters of each equipment under unloading and non-unloading conditions. Thirdly, from the thermodynamic point of view, through the production data from the receiving station to the end of August 2016, and the effect of the process parameters such as BOG processing capacity on the power consumption of the pump and compressor, and on the process performance parameters, The adaptability analysis of BOG process treatment at Qingdao LNG receiving station at present is carried out, and the problems existing in the current BOG process treatment mode are summarized, and the BOG optimization method is put forward from two aspects: reasonable configuration of equipment and adjustment of process parameters. Finally, in view of the influence of the comprehensive factors such as the ship docking examination and approval and the downstream market of Qingdao LNG receiving station on the BOG process processing, from the point of view of the process flow and structure design, The optimization scheme of BOG processing for Qingdao LNG receiving station has been formulated from several aspects, such as electrical telecommunication transformation, and the feasibility study of the scheme has been carried out from an economic point of view. According to the conservative estimate, the current treatment process has caused a large amount of emptying. The economic loss is up to 37.7 million yuan and will cause air pollution. The BOG process optimization scheme designed in this paper can save about 15.42 million yuan of production cost every year after it is put into operation, so that the equipment of the receiving station can run smoothly and economically.
【學位授予單位】：西南石油大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TE83
本文編號：2141471
[Abstract]:LNG is one of the cleanest ideal energy sources in the global energy consumption due to its small size and easy transportation and storage. Qingdao LNG receiving Station is located in Dongjiakou Port of the Economic and technological Development Zone on the west coast of Qingdao City, Shandong Province. It is a key project of China's 11th Five-Year Plan and the first LNG receiving station of Sinopec. Qingdao LNG receiving station has been built in two phases according to market demand, and has been put into production in November 2014. The first stage project with a scale of 300 脳 10 ~ (4) t per year has been put into production, and the gas supply capacity has reached 40.5 脳 10 ~ (10) ~ 8 m ~ (-1) / a. At present, the construction scale is 500 脳 10 ~ (4) m ~ (3) per year, the gas supply capacity is 67 脳 10~8m~3 per year, the long-term construction scale is 1000 脳 10 ~ (4) t and the annual gas supply capacity is 135 脳 10 ~ (8) m ~ (3). The first stage project of the receiving station includes three 16 脳 10~4m~3LNG storage tanks, and a complete set of LNG station process engineering, including LNG unloading, gasification, pressurization, transportation, metering and so on. At the same time, the light hydrocarbon recovery system with rich liquid of LNG, which is now in production, has been put into production at the same time. The air separation system with the daily output of 600t (liquid oxygen, liquid nitrogen, liquid argon) and the public engineering system inside and outside the LNG station are used in LNG cold energy production. In this paper, the BOG process is introduced in detail, and the process of Qingdao LNG receiving station BOG is selected as the object of this study. The existing BOG treatment process is studied and analyzed by volume balance method and HYSYS as a calculation and simulation tool, and the BOG optimization scheme is established according to the actual operation of Qingdao LNG receiving station. Firstly, the research status of BOG process at LNG receiving station at home and abroad is investigated and analyzed, and the common BOG direct compression process and BOG recondensation process are analyzed and compared from the aspects of energy consumption and process. Secondly, the total amount of BOG produced by Qingdao LNG receiving station is calculated by using volume balance method to simulate the process parameters of each equipment under unloading and non-unloading conditions. Thirdly, from the thermodynamic point of view, through the production data from the receiving station to the end of August 2016, and the effect of the process parameters such as BOG processing capacity on the power consumption of the pump and compressor, and on the process performance parameters, The adaptability analysis of BOG process treatment at Qingdao LNG receiving station at present is carried out, and the problems existing in the current BOG process treatment mode are summarized, and the BOG optimization method is put forward from two aspects: reasonable configuration of equipment and adjustment of process parameters. Finally, in view of the influence of the comprehensive factors such as the ship docking examination and approval and the downstream market of Qingdao LNG receiving station on the BOG process processing, from the point of view of the process flow and structure design, The optimization scheme of BOG processing for Qingdao LNG receiving station has been formulated from several aspects, such as electrical telecommunication transformation, and the feasibility study of the scheme has been carried out from an economic point of view. According to the conservative estimate, the current treatment process has caused a large amount of emptying. The economic loss is up to 37.7 million yuan and will cause air pollution. The BOG process optimization scheme designed in this paper can save about 15.42 million yuan of production cost every year after it is put into operation, so that the equipment of the receiving station can run smoothly and economically.
【學位授予單位】：西南石油大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TE83
【參考文獻】
相關期刊論文 前10條
1 張毅;;關于LNG安全儲運的研究[J];能源與節(jié)能;2015年02期
2 姜國良;侯志強;劉驍;曲靖yN;;山東LNG接收站再冷凝器工藝及控制系統(tǒng)[J];油氣儲運;2015年01期
3 況岱坪;董事爾;楊沖偉;黃泳碩;楊小博;;LNG衛(wèi)星站冷能制冰工藝優(yōu)化及模擬分析[J];石油與天然氣化工;2014年02期
4 張宇煒;;淺談石化企業(yè)安全文化建設在安全管理中的作用[J];化工管理;2013年16期
5 王文彥;;LNG儲存中的安全問題[J];油氣儲運;2013年12期
6 田家林;梁政;楊琳;董超群;李雙雙;范哲;龐小林;;整體式天然氣壓縮機能效計算反平衡方法[J];石油學報;2013年04期
7 賈明濤;;行為安全管理在施工中的應用分析[J];中國安全生產(chǎn)科學技術;2012年07期
8 張奕;吳斌;艾紹平;;液化天然氣接收站的工藝流程[J];重慶科技學院學報(自然科學版);2012年01期
9 李亞軍;陳行水;;液化天然氣接收站蒸發(fā)氣體再冷凝工藝控制系統(tǒng)優(yōu)化[J];低溫工程;2011年03期
10 金光;李亞軍;;LNG接收站蒸發(fā)氣體處理工藝[J];低溫工程;2011年01期
相關碩士學位論文 前3條
1 楊志國;LNG儲運過程中BOG再冷凝工藝的優(yōu)化[D];華南理工大學;2010年
2 柳山;液化天然氣（LNG）全容儲罐結(jié)構(gòu)和性能研究[D];華南理工大學;2009年
3 劉海涌;孤東油田開發(fā)后期原油集輸系統(tǒng)能量分析研究[D];山東大學;2006年
，本文編號：2141471
本文鏈接：http://sikaile.net/jingjilunwen/jiliangjingjilunwen/2141471.html
最近更新
教材專著
