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帖子主题:脱碳是采用变压吸附流程好还是液体吸附好?
楼主:游客1643 [2008/8/6 15:59:20]
一、气体损失                                                                
        1、高压闪蒸气组成                                                        
                CO2        CO        H2        N2        CH4                
                64.88%        1.75%        25.80%        6.20%        1.37%        100.00%        
        2、高压闪蒸气实际流量                                                        
          a.  根据我公司在鲁西一化、二化以及联盟运转的碳丙高闪气回收PSA装置的                                                        
        实际情况,每吨合成氨高压闪蒸气的流量如下:                                                        
                300        Nm3/吨氨                                        
          b.瑞星集团碳丙脱碳变换气的处理流量为:                                                        
                51000        Nm3/h                                        
          c.瑞星集团51000Nm3/h变换气的碳丙高压闪蒸气流量为:                                                        
                300×51000/4300=                3558.14         Nm3/h                        
        3、碳丙脱碳有效气体损失计算                                                        
          a.H2损失:        3558.14*25.8%=                        918.00         Nm3/h                
          b.CO损失:        3558.14*1.75%=                        62.27         Nm3/h                
          c.N2损失:        3558.14*6.2=                        220.60         Nm3/h                
          e.CH4损失:        3558.14*1.37=                        48.75         Nm3/h                
        4、PSA脱碳气体损失                                                        
          a.H2损失:                                316.21         Nm3/h                
          b.CO损失:                                100.47         Nm3/h                
          c.N2损失:                                370.37         Nm3/h                
          e.CH4损失:                                176.91         Nm3/h                
                                                                
二、公用工程消耗                                                                
        1、碳丙脱碳公用工程消耗                                                        
          a.电:        1070        KW·h/h                                        
          b.循环水:        370        吨/h                                        
          c.溶剂:        15        公斤/吨                                        
        2、PSA脱碳公用工程消耗                                                        
          a.电:        120        KW·h/h                                        
          b.循环水:        5        吨/h                                        
三、经济效益对比                                                                
                        PSA脱碳                        碳丙脱碳                
                        (元/h)                        (元/h)                
        1、电(按0.35元/度计)                                                        
                120×0.35=        42                1070×0.35=        374.5                
        2、循环水(按0.15元/吨计)                                                        
                5×0.15=        0.75                370×0.15=        55.5                
        3、溶剂(按10元/公斤计)                                                        
                        —                15×10=        150                
        4、氢气损失(每吨氨消耗氢气2000Nm3,每吨价值按2000元计)                                                        
                2000×316/2000×10=        316.21                2000×918/2000×10=        918                
        5、氮气损失(3300Nm3吹风气影响一吨按,每吨价值按1500元计)                                                        
                300/75%/3300×1500=        181.82                         —                
        6、一氧化碳损失(每吨氨消耗一氧化碳2000Nm3,每吨价值按2000元计)                                                        
                2000×100/2000×10=        100.47                2000×62/2000×10=        62.27                 
                                                                
        合计(元/h)                641.25                         1560.27                 
        (万元/年)                513.00                         1248.21                 


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