عنوان مقاله :
كاهش آلاينده‌هاي زيست‌محيطي با جايگزيني برنرهاي خطي در واحد بازيافت گوگرد
عنوان به زبان ديگر :
Reduce of Environment pollution With Reheating Replacement in Recovery Unit
پديد آورندگان :
ﺑﺎﺑﺎﯾﯽ، ﻣﻮﺳﯽ ﺷﺮﮐﺖ ﻣﻠﯽ ﮔﺎز اﯾﺮان - ﻧﻮﺑﺖﮐﺎر ارﺷﺪ اﺗﺎق ﮐﻨﺘﺮل واﺣﺪ ﺑﺎزﯾﺎﻓﺖ ﮔﻮﮔﺮد، ايران , ﺣﺎﺟﯽآﺑﺎدي، ﻣﺤﻤﺪرﺿﺎ ﺷﺮﮐﺖ ﻣﻠﯽ ﮔﺎز اﯾﺮان - مسئول ﺣﻘﻮق و دﺳﺘﻤﺰد و وام و ﻣﺰاﯾﺎ، ايران , اﺣﻤﺪي ﭘﻮﯾﺎ، رﺿﺎ ﭘﺎﻻﯾﺸﮕﺎه ﮔﺎز ﺷﻬﯿﺪ ﻫﺎﺷﻤﯽ ﻧﮋاد ﺧﺎﻧﮕﯿﺮان، ايران
كليدواژه :
ﺑﺎزﯾﺎﻓﺖ ﮔﻮﮔﺮد , ﻓﺮاﯾﻨﺪ ﮐﻼوس اﺻﻼح ﺷﺪه , روشﻫﺎي ﭘﯿﺶﮔﺮﻣﺎﯾﺶ ﮔﺎز اﺳﯿﺪي , آلاينده‌هاي زيست‌محيطي
چكيده فارسي :
در ﮔﺎز اﺳﺘﺤﺼﺎﻟﯽ از ﻣﻨﺎﺑﻊ ﻧﻔﺖ و ﮔﺎز و ﭘﺘﺮوﺷﯿﻤﯽ ﻣﻘﺪار زﯾﺎدي ﺳﻮﻟﻔﯿﺪ ﻫﯿﺪروژن وﺟﻮد دارد. اﯾﻦ ﺗﺮﮐﯿﺐ ﺑﺴﯿﺎر ﺧﻮرﻧﺪه ﺑﻮده و ﺑﻪ ﺗﺠﻬﯿﺰات ﺧﻄﻮط اﻧﺘﻘﺎل آﺳﯿﺐ ﻣﯽرﺳﺎﻧﺪ. ﯾﮑﯽ از ﻓﺮاﯾﻨﺪﻫﺎي ﺣﺬف ﺳﻮﻟﻔﯿﺪ ﻫﯿﺪروژن ﻣﻮﺟﻮد در ﮔﺎز اﺳﯿﺪي، روش ﮐﻼوس اﺻﻼح ﺷﺪه اﺳﺖ. ﺑﺎ اﺳﺘﻔﺎده از اﯾﻦ روش، ﻣﯽﺗﻮان ﺑﻪ ﺣﺪاﮐﺜﺮ اﯾﻦ ﻣﯿﺰان ﺗﻮﻟﯿﺪ ﮔﻮﮔﺮد ﻋﻨﺼﺮي دﺳﺖ ﯾﺎﻓﺖ. ﺑﻪﻣﻨﻈﻮر ﺣﻔﻆ راﻧﺪﻣﺎن ﮐﻠﯽ واﺣﺪﻫﺎي ﺑﺎزﯾﺎﻓﺖ ﮔﻮﮔﺮد )96-98/5 درﺻﺪ(، ﻣﺘﺪاولﺗﺮﯾﻦ روش اﺳﺘﻔﺎده از روشﻫﺎي ﭘﯿﺶﮔﺮﻣﺎﯾﺶ ﻣﺴﺘﻘﯿﻢ )ﺑﺮﻧﺮﻫﺎي ﺧﻄﯽ( و ﻏﯿﺮﻣﺴﺘﻘﯿﻢ )ﻣﺒﺪلﻫﺎي ﺣﺮارﺗﯽ ﮔﺎز-ﮔﺎز( ﺟﺮﯾﺎن ﮔﺎز ورودي ﺑﻪ ﺑﺴﺘﺮﻫﺎي ﮐﺎﺗﺎﻟﯿﺴﺘﯽ اﺳﺖ. ﺑﺎﺗﻮﺟﻪ ﺑﻪ ﻣﺸﮑﻼت ﻣﻮﺟﻮد در اﺳﺘﻔﺎده از روش ﭘﯿﺶﮔﺮﻣﺎﯾﺶ ﻣﺴﺘﻘﯿﻢ )اﻋﻢ از اﻓﺰاﯾﺶ ﻣﺼﺮف ﮔﺎز ﺳﻮﺧﺖ و ﻏﯿﺮﻓﻌﺎل ﺷﺪن ﮐﺎﺗﺎﻟﯿﺴﺖﻫﺎ(، اﺻﻼح روشﻫﺎي ﻓﺮاﯾﻨﺪي ﻣﻮﺟﻮد ﺑﯿﺶازﭘﯿﺶ ﺿﺮوري ﺑﻪ ﻧﻈﺮ ﻣﯽرﺳﺪ. ﺑﺮ اﯾﻦ اﺳﺎس در اﯾﻦ ﻣﻘﺎﻟﻪ ﺑﺎ اﺳﺘﻔﺎده از دادهﻫﺎي ﻋﻤﻠﯿﺎﺗﯽ واﺣﺪ ﺑﺎزﯾﺎﻓﺖ ﮔﻮﮔﺮد ﭘﺎﻻﯾﺸﮕﺎه ﮔﺎز ﺷﻬﯿﺪ ﻫﺎﺷﻤﯽ ﻧﮋاد، ﺑﻪ اﺻﻼح روش ﭘﯿﺶﮔﺮﻣﺎﯾﺶ ﺟﺮﯾﺎن ﮔﺎز اﺳﯿﺪي ورودي ﺑﻪ ﺑﺴﺘﺮﻫﺎي ﮐﺎﺗﺎﻟﯿﺴﺘﯽ از ﻃﺮﯾﻖ ﻧﺮماﻓﺰار SULSIM ﭘﺮداﺧﺘﻪ ﺷﺪه اﺳﺖ. در ﭘﯽ اﻋﻤﺎل ﺗﻐﯿﯿﺮات ﻓﻮق، راﻧﺪﻣﺎن ﺗﺒﺪﯾﻞ و راﻧﺪﻣﺎن ﺑﺎزﯾﺎﻓﺖ ﺑﻪ ﺗﺮﺗﯿﺐ ﺑﻪ ﻣﯿﺰان 138/4kg/hr، 81/7kg/hr اﻓﺰاﯾﺶ و ﻣﺼﺮف ﮔﺎز ﺳﻮﺧﺖ ﻧﯿﺰ ﺑﻪ ﻣﯿﺰان 271/8kmol/hr ﮐﺎﻫﺶ ﯾﺎﻓﺖ ﮐﻪ اﯾﻦ ﻣﻮﺿﻮع ﺳﺒﺐ ﮐﺎﻫﺶ چشم‌گير آلاينده‌هاي زيست‌محيطي همچون CO2 و SO2 به ترتيب به ميزان 4/34kmol/hr و 23kmol/hr گرديد.
چكيده لاتين :
Extracted gas from oil, gas and petrochemical sources contains large amounts of hydrogen sulfide. This compound is very corrosive and damages the transmission lines. One of the processes for removing hydrogen sulfide in acid gas is the modified Claus method. In order to maintain the overall efficiency of sulfur recycling units (98.5-96%), The most common method of using direct preheating methods (linear burners) and indirect (gas-gas heat exchangers) is the inlet gas flow to the catalytic substrates. Due to the problems in using the direct preheating method (including increasing fuel consumption and deactivation of catalysts), modification of existing process methods seems to be a prerequisite. In this paper, using the operational data of the sulfur recycling unit of Shahid Hasheminejad Gas Refinery, the method of preheating the flow of acid gas entering the catalytic substrates through SULSIM software has been modified.
Following the above changes, conversion efficiency and recycling efficiency increased by 138.4 kg/hr, 81.7 kg/hr, respectively, and fuel consumption decreased by 271.88 kmol/hr. Finally, the production of environmental pollutants such as carbon dioxide and sulfur dioxide decreased by 4.34 and 23 km/h respectively.
