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crude
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  原油
    STUDY OF NICKEL PORPHYRINS IN SOME CHINESE CRUDE OILS
    我国一些原油中镍卟啉化合物初步研究
    AN INITIAL STUDY ON CRUDE OIL UPGRADING BY SOLVENT EXTRACTION
    粘稠原油溶剂萃取改质的初步研究
    STUDY OF SALT COMPOSITION AND THE DESALTING EFFECT IN SOME CRUDE OILS
    我国一些原油中盐类的组成及脱盐效果的研究
    A KINETIC STUDY ON HYDROGENATION OF AROMATIC COMPOUNDS IN MIDDLE DISTILLATES OF GUDAO CRUDE OIL
    孤岛原油航煤馏份二段加氢脱芳烃动力学研究
    SIMULTANEOUS DETERMINATION OF MICRO NICKEL AND MICRO VANADIUM IN CRUDE OIL OR RESIDUAL OIL BY DUAL WAVELENGTH SPECTROPHOTOMETRY
    双波长分光光度法同时测定原油及渣油中微量镍和钒
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    Cr-MO-Al_2O_3 CATALYST FOR HYDROFINING OF COKE OVEN CRUDE BENZENE
    Cr-Mo-Al_2O_3催化剂用于焦化粗苯加氢精制的研究
    DISCUSSION ON ANTI-CORROSION MEASURES FOR CRUDE OIL DISTILLATION UNTTS
    常减压蒸馏装置设备防腐措施的探讨
    APPLICATION OF PATTERN RECOGNITION OPTIMIZATION METHOD ON CRUDE DISTILLATION UNIT
    模式识别优化技术在常减压蒸馏装置上的应用
    Technology and Development Trends of China's Viscous Crude Surface Production Facilities
    Technology and Development Trends of China's Viscous Crude Surface Production Facilities
    Application of Heat Transfer Oil in Crude Benzol Hydro-refining Process
    导热油在粗苯加氢精制工艺中的应用
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  crude
The activity profiles of the intracellular and extracellular crude extracts showed that the antibiotic producing culture produces two or more compounds, one being intracellular (antifungal), other being extracellular (antibacterial).
      
Owing to the wide activities of BFA, there is a need to develop a method for rapid identification of BFA in crude microbial extracts.
      
After the crude product is recrystallized from tetrahydrofuran (THF), the final product is obtained with purity above 99%.
      
Road transport produces significant amounts of emissions by using crude oil as the primary energy source.
      
The enzyme was purified fivefold by precipitation of the aqueous cell extract with alcohol (1 : 1, v/v), and a crude preparation with a specific activity of 46 U per mg protein was obtained.
      
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644彩的新版网站 fushun shale oil contains a considerable amount of non-hydrocarbons with nitrogen compounds predominating.application of chromatographic method to the fushun shale oil results in a separation of a colorless to yellow fraction,which consists mainly of hydrocarbons,and a dark-brown non-hydrocarbon fraction;large- pore silica gel is an excellent adsorbent for this purpose,and petroleum ether and ethanol are used as the eluents.reactions with formaldehyde-h_2so_4 and with ehrlich reagent may be used as indications...

Fushun shale oil contains a considerable amount of non-hydrocarbons with nitrogen compounds predominating.Application of chromatographic method to the Fushun shale oil results in a separation of a colorless to yellow fraction,which consists mainly of hydrocarbons,and a dark-brown non-hydrocarbon fraction;large- pore silica gel is an excellent adsorbent for this purpose,and petroleum ether and ethanol are used as the eluents.Reactions with formaldehyde-H_2SO_4 and with Ehrlich reagent may be used as indications for the separation of aromatic hydro- carbons and nitrogen compounds,and it has been proved by experiments that the hydrocarbon-concentrate thus separated contains no nitrogen compounds. It is found that hydrocarbon content in the Fushun shale oil decreases as the boiling points of fractions increase.The content of the hydrocarbon fraction in the Fushun crude shale oil is 59.4%,while that of the Hwadian crude oil is 72.6%.

fushunyeyanyouchutingleiwai,hanyouxiangdangliangdefeitinghuahewu,qizhongdanhuahewuhanliangzuiduo.yingyongguijiaoxifujidesepufenlikeyifenkaiwusezhihuangsede、yitingweizhudebufenheheizongsedefeitinghuahewubufen,cukongguijiaozuoweixifujidedaolelianghaodejieguo.chongxijiyongtuobenshiyoumihesajing;yongjiaquan-fangtingfanyingyijioushishijifanyingzuoweiwudantingnongsuobufenhejixingdanhuahewubufendefenlibiaozhi.shiyanzhengmingfushunyeyanyouzhongtinghanliangsuizheliufenbianzhongerjianshao;fushunyeyancuyouzhongtingnongsuobufenzhan59.4%,huadianyeyancuyouzhongtingnongsuobufenzhan72.6%.

From the experimental results,the phase diagrams,which correlate the temperature,pressure and percentage of vaporization of equilibrium flash vapori- zation of shale oil,are constructed.The focal point on the phase diagram of No.1 light gas oil of Fushun shale oil is 39.3 atm.(F_p)and 482℃(F_t);and that of Fushun crude shale oil is 30.1 atm.(F_p) and 558℃(F_t). The values of the focal points calculated by the empirical graph of Edmister show certain deviations from the experimental results,and these deviations...

From the experimental results,the phase diagrams,which correlate the temperature,pressure and percentage of vaporization of equilibrium flash vapori- zation of shale oil,are constructed.The focal point on the phase diagram of No.1 light gas oil of Fushun shale oil is 39.3 atm.(F_p)and 482℃(F_t);and that of Fushun crude shale oil is 30.1 atm.(F_p) and 558℃(F_t). The values of the focal points calculated by the empirical graph of Edmister show certain deviations from the experimental results,and these deviations will be larger if the empirical graph of Okamoto is used.But the theoretical methods of calculation developed by Katz and Brown or Edmister give much better results as compared with above empirical methods.Therefore,the theoretical method can be applied to calculate the data of equilibrium flash vaporization of shale oil and shale oil fractions.

congshiyandedaoletuisuanyeyanyoupinghengqihuadewendu-yali-qihualvdeguanxixiangtu.fushunyeyanyouyihaoqingyouxiangtujiaodianwei:f_p=39.3daqiya,f_t=482°;fushunyeyanyuanyouxiangtujiaodianwei:f_p=30.1daqiya,f_t=558°.yingyong edmister deshiyoujingyantusuotuisuandepinghengqihualvhuoxiangtujiaodian,yushiyanzhishiyouyidingpianchade.eryong okamoto dejingyantutuisuandepinghengqihualvzepianchagengda。ruoyishifeidiandaibiaozucheng,yingyongshiyandezhengqiyahuansuanbiaoqiudepinghengchangshu,ranhoujinxingfushunyeyanyouyihaoqingyouhefushunyeyanyuanyoudepinghengqihualvlilunjisuan,zededaoyushiyanzhiyizhidejieguo;bingqieyuanjiao okamoto huo edmister dejingyanfangfahao.yinci,zhijieyonglilunfangfalaijisuanyeyanyouliufenhuoyeyanyuanyoudepinghengqihuaxingzhikeyidedaomanyidejieguo.

Hydrocarbon type distribution of the narrow cuts of acid-treated gas oil fraction (166~350℃) from Fushun shale oil crude is studied by use of distillation, adsorption and urea extractive crystallization techniques. 89—90% by weight of hydrocarbons and 10—11% by weight of non-hydrocarbons are found in each narrow cut. The content of paraffinic and cycloparaffinic hydrocarbons increases from 31.3% to 41.0% as the boiling point of the fractions is raised, and in which two-third of the saturates are composed...

Hydrocarbon type distribution of the narrow cuts of acid-treated gas oil fraction (166~350℃) from Fushun shale oil crude is studied by use of distillation, adsorption and urea extractive crystallization techniques. 89—90% by weight of hydrocarbons and 10—11% by weight of non-hydrocarbons are found in each narrow cut. The content of paraffinic and cycloparaffinic hydrocarbons increases from 31.3% to 41.0% as the boiling point of the fractions is raised, and in which two-third of the saturates are composed of paraffins with straight chain structure. The amount of unsaturates is about one-third of each fraction and about half of the unsaturates are olefins of normal structure. The content of aromatics differs slightly in different cuts. In analogous manner, hydrocarbon type composition of wide cut of gas oil (166~350℃) from Fushun shale oil crude is studied, except that the separation of hydrocarbons and non-hydrocarbons is effected by elution chromatography instead of acid treatment. The hydrocarbons thus obtained amount to 73.5%, whereas non-hydrocarbons are 26.5% (with nitrogenous compounds predominating). In the hydrocarbon portion, normal paraffinic, cycloparaffinic and branched paraffinic, normal olefinic, isoolefinic and cycloolefinic, monocyclic aromatic and polycyclic aromatic hydrocarbons amounts to 20.4, 7.4, 13.9, 12.1, 8.5 and 9.6% respectively. Apart from that, about 1.6% dark colored tarry matter is separated from the hydrocarbon portion. A simplified procedure for the hydrocarbon type analysis of gas oil fraction from shale oil crude by adsorption chromatography is also recommended.

benwenshouxianjieshaolefushunyeyanyousuanxiyou166~350°gezhailiufendehuaxuezucheng。suoyingyongdeyanjiufangfaweizhengliu、xifujiniaosujiejingchoutideng,qizhongyixifufenliweizhu.shiyanjieguoshuominggeliufenhanyou89~90%(zhongliang)dejingji10~11%defeijing,wan-huanwandehanliangsuizheliufenfeidiandeshenggaoerzengda,you31.3%zengzhi41.0%,qizhongzhenggouwanyuezhansanfener。bubaohejingyuezhangeliufendesanfenzhiyi,qizhongzhilianxiyuezhanyiban。geliufenzhongfangyandehanliangdazhidouhenjiejin。youyingyongleisidefangfaduifushunyeyanyouchaiyoukuanliufen(166~350°)jinxinglexiangxijingzuzuchengyanjiu。butongzhichujiushiyingyonglecukongguijiaozuoweixifujidechongxisepufadaitisuanxiqufenliyanyufeijing。suodejieguojingbufenwei73.5%,feijingbufenwei26.5%(yidanhuahewuweizhu)。jingbufenzhongyouzhenggouwan20.4%,yigouwan-huanwan7.4%,zhilianxi13.9%,yigouxi-huanxi12.1%,danhuanfangjing8.5%jiduohuanfangjing9.6%。jingbufenzhonghuanfenchule1.6%heisezhanchoudefeijingwuzhi。huanjianlileyigecedingyeyanyouchaiyouliufenjingzuzuchengdejianyisepufangfa。benfayonghuoxingxikongguijiaozuoweixifuji,fenlishiyichongxisepufaweijichude。

 
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