The naphthenic acids in 200~430℃ distillate of Liaohe crude oil were separated by column chromatogram and anion exchange resin.

采用柱色譜和陰離子交換樹(shù)脂法分離出遼河200~430℃餾分油中的環(huán)烷酸色狼av窝电影。

In optimal design procedure, two important design variable are identified: one is recycle flow rate and the other is specification of acetic acid in the distillate of second column (pinch point exists between water-acetic acid system).

在最適設(shè)計(jì)步驟中，我們發(fā)現(xiàn)兩個(gè)最重要的變數(shù)：回流股流量及第二根塔頂乙酸規(guī)格(乙酸與水之間有狹點(diǎn)存在)免费看黄色视频的网站在线观看。

Burning a pole results in painful chemical burns because the installer usually winds up with a chest and legs full of splinters coated with creosote, a coal tar distillate used to preserve the wooden pole.

燃燒電線(xiàn)桿會(huì)導(dǎo)致化學(xué)燒傷国产一级毛片喷潮视频，非常疼痛，因?yàn)榘惭b人員通常會(huì)卷起黑白xxxxx，胸部和腿部沾滿(mǎn)涂了木餾油的碎片在线观看视频资源www网站18，木餾油是一種煤焦油餾分，用來(lái)保護(hù)木制電線(xiàn)桿的99国产精品视频。

Washing oil distillate from coal tar is rich in such valuable organic chemical materials as quinoline,α-methyl-naphthalene,β-methyl-naphthalene, diphenyl, indole, acenaphthene, fluorene, etc.

煤焦油洗油餾分中富含喹啉亚州视屏、α-甲基萘、β-甲基萘黄色视频,黄色网站,黄色视频免费观看。、聯(lián)苯亚洲国产人成在线观看、吲哚、苊114一级黄片、芴等寶貴的基本有機(jī)化工原料亚洲视频不卡毛片，介紹了這些組分的分離提取及其在精細(xì)化工中的應(yīng)用，煤焦油的深加工對(duì)資源綜合利用及精細(xì)化工的發(fā)展具有重要意義在线免费AV。

G. softening point, equiviscosity temperature, density of pitch, vacuum distillate and C/H ratio.

定量地估計(jì)了原生QI和β樹(shù)脂對(duì)瀝青質(zhì)量的重要作用韩国国产色色一区二区视频。

Under distillation conditions, including a bottoms temperature of greater than about 55 DEG C and less than about 75 DEG C, an overhead or side-cut distillate stream containing a purified propylene oxide is obtained with low yield loss of propylene oxide to propylene glycols and other glycol heavies.

在包括大于大約55℃且小于大約75℃底部溫度的蒸餾條件下，得到含有純環(huán)氧丙烷的塔頂餾分流或側(cè)餾分流且具有低的從環(huán)氧丙烷轉(zhuǎn)化到丙二醇和其他二醇重質(zhì)的產(chǎn)率損失欧美性三级视频。

The results show that with the increase of operation severity, the content of the distillate heavier than 550℃ and the resin and asphaltene in the oil slurry are decreased obviously.

結(jié)果表明美日韩美女自插在线视频观看，隨著操作苛刻度的提高，油漿中的餾分呈現(xiàn)出中間餾分增加日韩中文有码精品视频在线，兩端餾分降低的變化趨勢(shì)一级欧美片网站，并且油漿中大于550℃餾分的含量明顯減少，油漿中的膠質(zhì)欧美最新视频、瀝青質(zhì)含量減少成年人看免费视频大。

In terms of the yield of organic distillate and the formation rate of coke, the results show that reused catalytic activity changes moderately during the first 3 times of regeneration, while the reused catalyst is gradually deactivated after repeated regenerations more than 3 times.

此外還對(duì)催化劑HZSM-5采用在空氣中600℃焙燒的方式再生以及再生次數(shù)對(duì)產(chǎn)物量和催化活性的影響進(jìn)行了研究，結(jié)果表明：再生前三次欧美第一页激情视频，催化劑活性變化不大2021无码影片，隨著再生次數(shù)的增加，催化劑活性受到影響程度也增大欧美曰韩亚洲视品。