针对现有催化裂化油浆脱固技术存在的易堵塞、运行时间短的问题,开发了一种高效的组合油浆脱固技术:采用一级预涂过滤解决油浆内胶团堵塞滤管问题,二级旋错流精滤保证滤后油浆固含量达标。建设了一套处理规模为1 m 3/h的撬装式工业侧线...针对现有催化裂化油浆脱固技术存在的易堵塞、运行时间短的问题,开发了一种高效的组合油浆脱固技术:采用一级预涂过滤解决油浆内胶团堵塞滤管问题,二级旋错流精滤保证滤后油浆固含量达标。建设了一套处理规模为1 m 3/h的撬装式工业侧线试验装置,对某炼油厂的催化裂化油浆进行脱固处理。通过近3个月的工业侧线试验,结果表明,采用该组合过滤技术后,滤后油浆平均固含量为48μg/g,平均固体脱除率达到98.6%,实现油浆回收率99.03%。在实现油浆脱固的同时,能够减少过滤管内堵塞,延长油浆过滤装置的运行时间。展开更多
In a recent paper [Yan F L et al. Chin.Phys.Lett. 25（2008）1187], a quantum secret sharing the protocol between multiparty and multiparty with single photons and unitary transformations was presented. We analyze the ...In a recent paper [Yan F L et al. Chin.Phys.Lett. 25（2008）1187], a quantum secret sharing the protocol between multiparty and multiparty with single photons and unitary transformations was presented. We analyze the security of the protocol and find that a dishonest participant can eavesdrop the key by using a special attack. Finally, we give a description of this strategy and put forward an improved version of this protocol which can stand against this kind of attack.展开更多
We analyse the security of a quantum secure direct communication （QSDC） protocol and find that an eavesdropper can utilize a special property of GHZ states to elicit all or part of the transmitted secrets without be...We analyse the security of a quantum secure direct communication （QSDC） protocol and find that an eavesdropper can utilize a special property of GHZ states to elicit all or part of the transmitted secrets without being detected. The particular attack strategy is presented in detail. We give an improved version of this protocol so that it can resist this attack.展开更多
文摘针对现有催化裂化油浆脱固技术存在的易堵塞、运行时间短的问题,开发了一种高效的组合油浆脱固技术:采用一级预涂过滤解决油浆内胶团堵塞滤管问题,二级旋错流精滤保证滤后油浆固含量达标。建设了一套处理规模为1 m 3/h的撬装式工业侧线试验装置,对某炼油厂的催化裂化油浆进行脱固处理。通过近3个月的工业侧线试验,结果表明,采用该组合过滤技术后,滤后油浆平均固含量为48μg/g,平均固体脱除率达到98.6%,实现油浆回收率99.03%。在实现油浆脱固的同时,能够减少过滤管内堵塞,延长油浆过滤装置的运行时间。
基金Supported by the National Natural Science Foundation of China under Grant Nos 60873191, 60903152 and 60821001, the SRFDP under Grant No 200800131016, Beijing Nova Program under Grant No 2008B51, Key Project of the Ministry of Education of China under Grant No 109014, China Postdoctoral Science Foundation under Grant No 20090450018, Fujian Provincial Natural Science Foundation under Grant No 2008J0013, and the Foundation of Fujian Education Bureau under Grant No 3A08044.
文摘In a recent paper [Yan F L et al. Chin.Phys.Lett. 25（2008）1187], a quantum secret sharing the protocol between multiparty and multiparty with single photons and unitary transformations was presented. We analyze the security of the protocol and find that a dishonest participant can eavesdrop the key by using a special attack. Finally, we give a description of this strategy and put forward an improved version of this protocol which can stand against this kind of attack.
基金Supported by the National High-Tech Research and Development Programme of China under Grant No 2006AA01Z419, the Major Research Plan of the National Natural Science Foundation of China under Grant No 90604023, the National Laboratory for Modern Communications Science Foundation of China under Grant No 9140Cl101010601, and the Natural Science Foundation of Beijing under Grant No 4072020.
文摘We analyse the security of a quantum secure direct communication （QSDC） protocol and find that an eavesdropper can utilize a special property of GHZ states to elicit all or part of the transmitted secrets without being detected. The particular attack strategy is presented in detail. We give an improved version of this protocol so that it can resist this attack.
