精品人妻无码一区二区三区狼群-精产品99永久免费网页版-区二区欧美性插B在线视频网站-国产亚洲精品久久久久久牛牛-有码av-亚洲精品无码不卡在线播HE-亚洲国产无线乱码在线观看-狠狠碰在线视频-国产人伦人妻精品一区-少妇性夜夜春夜夜爽A片-国产成人精品综合在线观看-国产精品久久久久无码AV色戒-国产亚洲精品久久久无码网站,少妇做爰免费视看片,18禁美女久久久久久久久久,超碰成人大香蕉,三级韩国日本三级在线,亚洲欧美日韩另类一区,少妇我被躁爽到高潮片,男女啪啪高清无遮挡免费直播软件,久久精品国产久精久精,国产手机在线国内精品,东京热人妻无码专区,欧美1234区,媚药春药强中文字幕,欧美牲交三级欧美做真爱,直接在线看黄AV免费观看,99久久就热视频精品草,99久久精品6在线播放,在线亚洲欧美中文字幕,亚洲无码潮喷在线观看,性做爰片免费看网站,无码少妇一区二区三区视频,熟妇人妻系列无码一区二区,日韩做爰片久久毛片片小说,日本午夜精品理论片级发布,人妻无码久久精品人妻古装,日本成人在线香蕉,日本邪恶在线看片,日韩精品无码一区,日韩卡二卡三卡四卡永久入口,色综合久久精品中文字幕,我在车上了麻麻

1. 丁烷法固定床工藝：丁烷法固定床工藝主要由亨斯邁公司、BP、SD、 康斯爾（Conser）公司擁有，與苯氧化法基本相似，但正丁烷氧化轉化率和選擇性均比苯低，其順酐的摩爾收率按正丁烷計僅為 50％~55％，而原料氣體中苯和正丁烷的摩爾濃度基本相同。因此對于同樣規模的裝置，正丁烷法需要較大的反應器和壓縮機。反應溫度 400～450℃，壓力為 125～130 MPa。為了降低正丁烷的單耗，比利時的 Pantochim公司采用尾氣循環工藝，吸收塔頂出來的尾氣約50％經處理后與新鮮空氣一并進入反應器。該工藝可使正丁烷的單耗下降約 10％ 。

1. Butane fixed bed process: The butane fixed bed process is mainly owned by Huntsman, BP, SD, and Consol, which is similar to the benzene oxidation method, but the conversion rate and selectivity of n-butane oxidation are lower than benzene. The molar yield of maleic anhydride is only 50%~55% based on n-butane, while the molar concentrations of benzene and n-butane in the raw gas are basically the same. Therefore, for production facilities of the same scale, the n-butane method requires larger reactors and compressors. The reaction temperature is 400-450 ℃ and the pressure is 125-130 MPa. In order to reduce the unit consumption of n-butane, Pantochim Company in Belgium adopts a tail gas circulation process. About 50% of the tail gas from the top of the absorption tower is treated and enters the reactor together with fresh air. This process can reduce the unit consumption of n-butane by about 10%.

2.  丁烷法流化床工藝：流化床工藝是 Lummus 公司和 Lonza 公司合作開發的 ALMA 工藝。 流化床反應器中，正丁烷和空氣分別進入反應器后混合，避免了其混合時發生爆炸的可能 因此原料氣中正丁烷的摩爾分數可以提高到 4％，反應所需空氣約為固定床的一半，減少了空氣壓縮機的投資和操作費用。流化床工藝的能耗低于固定床，但丁烷的單耗要比固定床高約 8％，另外流化床催化劑的磨損也較大。

2. Butane method fluidized bed process: The fluidized bed process is an ALMA process jointly developed by Lummus and Lonza companies. In a fluidized bed reactor, n-butane and air are mixed separately after entering the reactor, avoiding the possibility of explosion during mixing. Therefore, the molar fraction of n-butane in the feed gas can be increased to 4%, and the required air for the reaction is about half of that of a fixed bed, reducing the investment and operating costs of the air compressor. The energy consumption of fluidized bed technology is lower than that of fixed bed, but the unit consumption of butane is about 8% higher than that of fixed bed. In addition, the wear of fluidized bed catalysts is also significant.

本文由順酐廠家提供技術支持，更多的詳細精彩內容請點擊我們的網站http://m.paimaizhe.com我們將會全心全意為您提供滿意的服務。

This article is supported by the manufacturer of maleic anhydride. For more detailed and exciting content, please click on our website http://m.paimaizhe.com We will wholeheartedly provide you with satisfactory service.