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SINOPEC's Success in Fixed-bed Methanol-to-Propylene Pilot Scale Tests
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《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2014年第3期9-9,共1页
The first in China pilot tests of fixed-bed methanol-topropylene unit were successfully implemented at the Yangzi Petrochemical Company(YPC).It is told that this technology has opened up a new process for production o... The first in China pilot tests of fixed-bed methanol-topropylene unit were successfully implemented at the Yangzi Petrochemical Company(YPC).It is told that this technology has opened up a new process for production of propylene through coal gasification,and China has possessed both the fluidized-bed methanolto-propylene process(F-MTP)and the 展开更多
关键词 MTP SINOPEC’s Success in Fixed-bed Methanol-to-Propylene pilot scale tests
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Feasibility and simulation model of a pilot scale membrane bioreactor for wastewater treatment and reuse from Chinese traditional medicine 被引量:4
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作者 REN Nan-qi YAN Xian-feng +3 位作者 CHEN Zhao-bo HU Dong-xue GONG Man-li GUO Wan-qian 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2007年第2期129-134,共6页
The lack and pollution of water resource make wastewater reuse necessary. The pilot scale long-term tests for submerged membrane bioreactor were conducted to treat the effluents of anaerobic or aerobic treatment proce... The lack and pollution of water resource make wastewater reuse necessary. The pilot scale long-term tests for submerged membrane bioreactor were conducted to treat the effluents of anaerobic or aerobic treatment process for the high-strength Chinese traditional medicine wastewater. This article was focused on the feasibility of the wastewater treatment and reuse at shorter hydraulic retention time (HRT) of 5.0, 3.2 and 2.13 h. MLSS growth, membrane flux, vacuum values and chemical cleaning periods were also investigated. The experimental results of treating two-phase anaerobic treatment effluent demonstrated that the CODfilt was less than 100 mg/L when the influent COD was between 500-10000 mg/L at HRT of 5.0 h, which could satisfy the normal discharged standard in China. The experimental results to treat cross flow aerobic reactor effluent demonstrated that the average value of CODfilt was 17.28 mg/L when the average value of influent COD was 192.84 mg/L at HRT of 2.13 h during 106 d, which could completely meet the normal standard for water reuse. The maximum MLSS and MLVSS reached 24000 and 14500 mg/L at HRT of 3.2 h respectively. Membrane flux had maximal resume degrees of 94.7% at vacuum value of 0.02 MPa after cleaning. Chemical cleaning periods of membrane module were 150 d. A simulation model of operational parameters was also established based on the theory of back propagation neural network and linear regression of traditional mathematical model. The simulation model showed that the optimum operational parameters were suggested as follows: HRT was 5.0 h, SRT was 100 d, the range of COD loading rate was between 10.664-20.451 kg/(m3.d), the range of MLSS was between 7543-13694 mg/L. 展开更多
关键词 submerged membrane bioreactor (SMBR) Chinese traditional medicine wastewater hydraulic retention time (HRT) simulation model pilot scale test
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