利用添加剂提高延迟焦化液体产品收率的研究
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摘要
通过实验室小型焦化评价装置考察了金属化合物、富芳组分和自由基生成剂等3种添加剂对延迟焦化液体产品分布的影响,发现不同添加剂对提高液体产品收率的效果和机理不同,其中富芳组分催化裂化油浆在掺兑量(w)小于10%时对焦化原料反应产物分布影响不大,掺兑量(w)为10%时液体产品收率略有增加;添加自由基生成剂四氢萘后抑焦效果明显,焦炭产率降低1.32百分点,液体产品收率提高5.21百分点,但其成本高,不宜推广应用;综合考虑,具有应用前景的是金属化合物添加剂,可使液体产品收率提高1.2百分点。
The effect of three additives including metal compounds,aromatic components and radical generating agents on the distribution of delayed coking liquid products was investigated by the laboratory small coking evaluation device.It was found that the effect and mechanism of different additives on the yield of liquid products were different.Blending FCC slurry less than 10% has little effect on the product distribution of coking,and the liquid yield is increased slightly when blending 10%of the slurry.The coke yield decreases by 1.32 percentage points after adding tetralin,while the yield of liquid product increase 5.21 percentage points.However,due to its high cost,it is not suitable for popularization and application.Considering comprehensively,the metal compound additive has application prospect.The metal compound additive can increase the yield of liquid products by 1.2percentage points.
The effect of three additives including metal compounds,aromatic components and radical generating agents on the distribution of delayed coking liquid products was investigated by the laboratory small coking evaluation device.It was found that the effect and mechanism of different additives on the yield of liquid products were different.Blending FCC slurry less than 10% has little effect on the product distribution of coking,and the liquid yield is increased slightly when blending 10%of the slurry.The coke yield decreases by 1.32 percentage points after adding tetralin,while the yield of liquid product increase 5.21 percentage points.However,due to its high cost,it is not suitable for popularization and application.Considering comprehensively,the metal compound additive has application prospect.The metal compound additive can increase the yield of liquid products by 1.2percentage points.
引文
[1]杨莹,张兰波.延迟焦化增加液体收率助剂的研究及应用现状[J].石化技术,2006,13(3):57-60
[2]武海云,王子军,范启明,等.添加助剂法提高延迟焦化装置液体收率的研究进展[J].石化技术与应用,2010,28(4):338-340
[3] Grussberg A L.Delayed coking process:The United States,US4394250[P].1983-07-19
[4]黎元生.提高延迟焦化液收的专利方法[J].石油化工动态,l999,7(6):50-52
[5] Shri K G,Gary S F.Coking process with decant oil addition to reduce coke yield:The United States,US4832823[P].1989-05-23
[6]方勇,沈本贤,梁朝林,等.响应面分析法优化掺炼乙烯裂解焦油的延迟焦化研究[J].石油炼制与化工,2009,40(8):5-9
[7] Eagar A C,Ivan C M.Additive for improving thermal conversion of heavy crude oil:The United States,US7067053B2[P].2006-06-27
[8]潘延明,杨莹,刘志龙.一种提高延迟焦化液体收率助剂及其制备:中国,CN1928021A[P].2007-03-14
[9] Stuart S S,Cherry H,Philip J.Coking process by addition of free radical inhibitors:The United States,US4378288[P].1983-03-29
[10]石斌,丁军委,阙国和.催化剂和供氢剂对渣油模型化合物裂化反应选择性的影响[J].燃料化学学报,2004,32(2):253-257
[11]孙柏军,阙国和,梁文杰.孤岛减压渣油供氢剂临氢减黏裂化的研究[J].石油炼制,1991,22(2):54-59
[2]武海云,王子军,范启明,等.添加助剂法提高延迟焦化装置液体收率的研究进展[J].石化技术与应用,2010,28(4):338-340
[3] Grussberg A L.Delayed coking process:The United States,US4394250[P].1983-07-19
[4]黎元生.提高延迟焦化液收的专利方法[J].石油化工动态,l999,7(6):50-52
[5] Shri K G,Gary S F.Coking process with decant oil addition to reduce coke yield:The United States,US4832823[P].1989-05-23
[6]方勇,沈本贤,梁朝林,等.响应面分析法优化掺炼乙烯裂解焦油的延迟焦化研究[J].石油炼制与化工,2009,40(8):5-9
[7] Eagar A C,Ivan C M.Additive for improving thermal conversion of heavy crude oil:The United States,US7067053B2[P].2006-06-27
[8]潘延明,杨莹,刘志龙.一种提高延迟焦化液体收率助剂及其制备:中国,CN1928021A[P].2007-03-14
[9] Stuart S S,Cherry H,Philip J.Coking process by addition of free radical inhibitors:The United States,US4378288[P].1983-03-29
[10]石斌,丁军委,阙国和.催化剂和供氢剂对渣油模型化合物裂化反应选择性的影响[J].燃料化学学报,2004,32(2):253-257
[11]孙柏军,阙国和,梁文杰.孤岛减压渣油供氢剂临氢减黏裂化的研究[J].石油炼制,1991,22(2):54-59