石油与天然气化工
石油與天然氣化工
석유여천연기화공
CHEMICAL ENGINEERING OF OIL AND GAS
2014年
6期
595-601
,共7页
邓骥%刘红%陈海涛%赵启龙%李林峰
鄧驥%劉紅%陳海濤%趙啟龍%李林峰
산기%류홍%진해도%조계룡%리림봉
脱硫%脱碳%气质变化%适应性%RSM%H2 S%CO2
脫硫%脫碳%氣質變化%適應性%RSM%H2 S%CO2
탈류%탈탄%기질변화%괄응성%RSM%H2 S%CO2
desulfurization%decarburization%variation of feed gas composition%adaptability%RSM%H2 S%CO2
原料气条件发生变化后，天然气脱硫脱碳装置常出现运行不稳定、酸性组分过度分离等问题。采用模拟软件建立某脱硫脱碳装置工艺模型，选择原料气处理量、CO2体积分数作为原料气条件变化参数，DEA 质量分数、贫液进料位置、循环量和装置能耗作为适应性参数。基于RSM 建立试验方案，回归得到装置适应性模型。对模型进行分析，结果表明，处理量和CO2体积分数上升将导致装置循环量和能耗上升，相对于处理量而言，CO2体积分数影响程度更大；提高进料位置和DEA质量分数均有助于降低溶液循环量及装置能耗，进料位置对装置的影响略大于DEA质量分数的影响；处理量和CO2体积分数对循环量和装置能耗的影响表现出强烈的交互作用；调节DEA质量分数与进料位置，可以有效地减小原料气条件变化对装置的影响。
原料氣條件髮生變化後，天然氣脫硫脫碳裝置常齣現運行不穩定、痠性組分過度分離等問題。採用模擬軟件建立某脫硫脫碳裝置工藝模型，選擇原料氣處理量、CO2體積分數作為原料氣條件變化參數，DEA 質量分數、貧液進料位置、循環量和裝置能耗作為適應性參數。基于RSM 建立試驗方案，迴歸得到裝置適應性模型。對模型進行分析，結果錶明，處理量和CO2體積分數上升將導緻裝置循環量和能耗上升，相對于處理量而言，CO2體積分數影響程度更大；提高進料位置和DEA質量分數均有助于降低溶液循環量及裝置能耗，進料位置對裝置的影響略大于DEA質量分數的影響；處理量和CO2體積分數對循環量和裝置能耗的影響錶現齣彊烈的交互作用；調節DEA質量分數與進料位置，可以有效地減小原料氣條件變化對裝置的影響。
원료기조건발생변화후，천연기탈류탈탄장치상출현운행불은정、산성조분과도분리등문제。채용모의연건건립모탈류탈탄장치공예모형，선택원료기처리량、CO2체적분수작위원료기조건변화삼수，DEA 질량분수、빈액진료위치、순배량화장치능모작위괄응성삼수。기우RSM 건립시험방안，회귀득도장치괄응성모형。대모형진행분석，결과표명，처리량화CO2체적분수상승장도치장치순배량화능모상승，상대우처리량이언，CO2체적분수영향정도경대；제고진료위치화DEA질량분수균유조우강저용액순배량급장치능모，진료위치대장치적영향략대우DEA질량분수적영향；처리량화CO2체적분수대순배량화장치능모적영향표현출강렬적교호작용；조절DEA질량분수여진료위치，가이유효지감소원료기조건변화대장치적영향。
The desulfurization and decarburization devices operate unstably and acidic compo‐nents are separated excessively w hen it comes to variation of feed gas conditions .Process model of a desulfurization and decarburization device was established using simulation software and the adaptive model was regressed on the base of RSM .Volume flow rate of feed gas ,CO2 volume fraction as the varying parameters of feed gas conditions and DEA mass fraction ,location of lean amine into absorber ,amine circulation volume rate and energy consumption of the unit were cho‐sen as adaptive variable .Based on the analysis of the model ,the results were showed as follows :The increase of processing capacity and CO2 volume fraction will lead to the increase of amine cir‐culation volume rate and energy consumption .Compared with processing capacity ,CO2 volume fraction has more influence on the amine circulation volume rate and energy consumption .Rising the location into absorber and increasing DEA mass fraction will both contribute to the decrease of amine circulation volume rate and energy consumption ,and the former has slightly more influ‐ence than the latter .There is a strong interaction between the processing capacity and CO 2 vol‐ume fraction on affecting the amine circulation volume rate and energy consumption .The last but not the least ,it can be regarded as an efficient way to reduce the influence brought by the varia‐tion of feed gas conditions to regulate DEA mass fraction and location of lean amine into absorb‐er .
