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    • 1. 发明授权
    • Process of thermally cracking heavy hydrocarbon oils
    • 重质烃油热裂解工艺
    • US4487686A
    • 1984-12-11
    • US583182
    • 1984-02-24
    • Shimpei GomiTomio AraiTomomitsu TakeuchiShigeru MiwaToru TakatsukaRyuzo Watari
    • Shimpei GomiTomio AraiTomomitsu TakeuchiShigeru MiwaToru TakatsukaRyuzo Watari
    • C10G51/02C10G9/16C10G9/14
    • C10G51/023
    • A heavy hydrocarbon feed stock is, after being heat-treated in a first cracking zone, is introduced into a second thermal cracking zone for obtaining a thermally cracked product and a pitch product. The second cracking zone has a plurality of cracking reactors which are connected in series, through which is successively passed the treated feed stock and to each of which is supplied a gaseous heat transfer medium to maintain the liquid phase therein at a temperature sufficient for effecting the thermal cracking and to strip the resulting distillable, cracked components from the liquid phase. The thermal cracking temperature in one reactor is so controlled as to become higher than that in its adjacent upstream-side reactor. The distillable, cracked components in respective reactors are removed overhead therefrom and separated into a heavy fraction and a light fraction, while the liquid phase in the downstream-end reactor is discharged therefrom for recovery as the pitch product. The light fraction is recovered as a light product oil, while the heavy fraction is fed to a third thermal cracking zone for obtaining a tar-containing product which is recycled to at least one of the reactors of the second thermal cracking zone together with a naphthene base heavy hydrocarbon oil.
    • 在第一裂解区热处理后,将重质烃原料引入第二热裂解区以获得热裂化产物和沥青产物。 第二裂解区具有多个串联连接的裂解反应器,通过该裂化反应器依次通过处理过的原料,并将其中的每一个供应气态传热介质,使其中的液相保持在足以实现 热裂解并从液相中剥离得到的可馏出的裂化组分。 一个反应器中的热裂解温度被控制得高于其相邻的上游侧反应器中的热裂解温度。 各反应器中的可蒸馏的裂化组分在其上从其上除去并分离成重馏分和轻馏分,而下游反应器中的液相从其排出,作为沥青产物进行回收。 将轻馏分作为轻质产物油回收,同时将重质馏分进料至第三热裂解区,以获得含焦油的产物,其与第二热裂解区的至少一个反应器一起再循环至环烷烃 基础重烃油。
    • 2. 发明授权
    • Thermal cracking of heavy hydrocarbon oils
    • 重质烃油的热裂解
    • US4477334A
    • 1984-10-16
    • US583183
    • 1984-02-24
    • Shimpei GomiTomomitsu TakeuchiItaru MatsuoMasaki FujiiToru TakatsukaRyuzo Watari
    • Shimpei GomiTomomitsu TakeuchiItaru MatsuoMasaki FujiiToru TakatsukaRyuzo Watari
    • C10G51/02C10G9/14
    • C10G51/023
    • A heavy hydrocarbon feed stock is, after being heat-treated in a first cracking zone, introduced into a second thermal cracking zone for obtaining a thermally cracked product and a pitch product. The second cracking zone has a plurality of cracking reactors which are connected in series, through which is successively passed the treated feed stock and to each of which is supplied a gaseous heat transfer medium to maintain the liquid phase therein at a temperature sufficient for effecting the thermal cracking and to strip the resulting distillable, cracked components from the liquid phase. The thermal cracking temperature in one reactor is so controlled as to become higher than that in its adjacent upstream-side reactor. The distillable, cracked components in respective reactors are removed overhead therefrom and separated into a heavy fraction and a light fraction, while the liquid phase in the downstream-end reactor is discharged therefrom for recovery as the pitch product. The light fraction is recovered as a light product oil, while the heavy fraction is fed to a third thermal cracking zone for obtaining a tar-containing product which is recycled to at least one of the reactors of the second thermal cracking zone.
    • 在第一裂解区热处理后,将重质烃原料引入第二热裂解区以获得热裂化产物和沥青产物。 第二裂解区具有多个串联连接的裂解反应器,通过该裂化反应器连续通过处理过的原料,并将其中的每一个供应气态传热介质,以保持其中的液相在足以实现 热裂解并从液相中剥离得到的可馏出的裂化组分。 一个反应器中的热裂解温度被控制得高于其相邻的上游侧反应器中的热裂解温度。 各反应器中的可蒸馏的裂化组分在其上从其上除去并分离成重馏分和轻馏分,而下游反应器中的液相从其排出,作为沥青产物进行回收。 将轻馏分作为轻质产物油回收,同时将重馏分进料至第三热裂解区,以获得再循环至第二热裂解区的至少一个反应器的含焦油产物。
    • 6. 发明授权
    • Method for the separation of impurities from crude ethanol aqueous
solution
    • 从原料乙醇水溶液中分离污染物的方法
    • US5185481A
    • 1993-02-09
    • US776275
    • 1991-11-26
    • Tsunehisa MutoFutoshi KanegaeToru TakatsukaSeiya HirohamaMasazumi Ojiro
    • Tsunehisa MutoFutoshi KanegaeToru TakatsukaSeiya HirohamaMasazumi Ojiro
    • B01D3/00C07C29/76C07C29/86C07C31/08
    • C07C29/86Y02P20/544
    • The present invention is a method for the separation of impurities from a crude ethanol aqueous solution, comprising of; (i) extracting lipophilic impurities within the crude ethanol aqueous solution into an extracting solvent phase by treating the crude ethanol aqueous solution with an extracting solvent comprising carbon dioxide in a liquid state or carbon dioxide in a super-critical state under conditions wherein a ratio of the weight of the extracting solvent to the weight of the crude ethanol aqueous solution is 2 or higher; and (ii) recovering ethanol entrained with the extracting solvent or ethanol and methanol entrained with the extracting solvent into an aqueous phase by contacting the extracting solvent phase resulting after extracting the impurities to with water in a countercurrent manner under pressures in a ratio of the weight of water to the weight of the extracting solvent of 0.3 or lower. In this method for separation, the extracting solvent ratio by weight in the step of extracting impurities is preferably 6 or higher when the crude ethanol is fermented ethanol and the extracting solvent ratio by weight therein is preferably 3 or higher when the crude ethanol is synthesized ethanol. The aqueous phase obtained in the step (ii) of washing with water is recirculated to the step (i) of extracting impurities.The method according to the present invention can yield a highly pure ethanol aqueous solution with high efficiency.
    • PCT No.PCT / JP91 / 00321 Sec。 371日期1991年11月26日 102(e)1991年11月26日PCT PCT 1991年3月8日PCT。 WO91 / 16288 PCT公开号 日本1991年10月31日。本发明是一种从粗乙醇水溶液中分离杂质的方法,包括: (i)将粗制乙醇水溶液中的亲脂性杂质萃取到萃取溶剂相中,在超临界状态下,用含有二氧化碳或二氧化碳的提取溶剂处理粗乙醇水溶液, 提取溶剂的重量相对于粗乙醇水溶液的重量为2以上; 和(ii)将提取溶剂或乙醇夹带的乙醇和夹带有萃取溶剂的甲醇回收到水相中,使提取溶剂相与萃取溶剂相接触,所得萃取溶剂相是在以重量比的压力下以逆流方式在水中提取杂质 的水至提取溶剂的重量为0.3或更低。 在这种分离方法中,当粗乙醇发酵乙醇时,提取杂质的步骤中提取溶剂的重量比优选为6或更高,当粗乙醇合成乙醇时,提取溶剂的重量比优选为3或更高 。 用水洗涤步骤(ii)中获得的水相再循环到提取杂质的步骤(i)。 根据本发明的方法可以高效率地得到高纯度的乙醇水溶液。
    • 7. 发明授权
    • Process for purifying aqueous crude ethanol solution
    • 净化粗乙醇溶液的方法
    • US5284983A
    • 1994-02-08
    • US965288
    • 1993-02-03
    • Tsunehisa MutoFutoshi KanegaeToru TakatsukaSeiya HirohamaMasazumi Ojiro
    • Tsunehisa MutoFutoshi KanegaeToru TakatsukaSeiya HirohamaMasazumi Ojiro
    • C07C29/84C07C29/86C07C31/08C07C29/80
    • C07C29/84C07C29/86Y02P20/544
    • Disclosed is a purification process for removing lipophilic impurities coined in an aqueous crude ethanol solution, in particular, for efficiently removing impurities consisting of C.sub.3 -C.sub.4 alcohols. The process involves (a) a first extraction step wherein the aqueous crude ethanol solution is extracted with an extractant for removing the lipophilic impurities, except for the C.sub.3 -C.sub.4 alcohols, contained in the aqueous crude ethanol solution by subjecting the aqueous crude ethanol solution to extraction with the extractant in a pressurized state containing carbon dioxide in a liquidized state or carbon dioxide gas in a supercritical state; (b) a concentration-distillation step wherein a raffinate obtained in the first extraction step is fed to a distilling column to thereby obtain a highly concentrated aqueous ethanol solution from a top of the distilling column and withdraw fraction containing C.sub.3 -C.sub.4 alcohols from the distilling column as a side stream; (c) a second extraction step wherein the side stream is brought into contact with the extract in a pressurized state, obtained in the first extraction step to thereby extract the C.sub.3 -C.sub.4 alcohols contained in the side stream into the extract; and (d) a water washing step wherein the extract in a pressurized state, obtained in the second extraction step, is brought into countercurrent contact with water in a pressurized state under such a condition that a ratio of the weight of water to the weight of the extract is set to 0.3 or less to thereby recover the ethanol contained in the extract into an aqueous phase.
    • PCT No.PCT / JP92 / 00354 Sec。 371日期:1993年2月3日 102(e)日期1993年2月3日PCT 1991年3月24日PCT公布。 公开号WO92 / 21638 日期为1992年12月10日。公开的是用于去除含有粗制乙醇水溶液中的亲脂性杂质的净化方法,特别是为了有效地除去由C 3 -C 4醇组成的杂质。 该方法包括:(a)第一提取步骤,其中用萃取剂萃取粗制乙醇水溶液,除去粗制乙醇水溶液中含有的含有C 3 -C 4醇的亲脂性杂质, 在处于液化状态的二氧化碳或处于超临界状态的二氧化碳气体的加压状态下萃取剂萃取; (b)浓缩 - 蒸馏步骤,其中将在第一提取步骤中获得的萃余液加入蒸馏塔中,从蒸馏塔顶部获得高浓度乙醇水溶液,并从蒸馏得到含有C 3 -C 4醇的萃取馏分 列作为侧流; (c)第二提取步骤,其中在第一提取步骤中获得的侧流与加压状态下的提取物接触,从而将侧流中所含的C3-C4醇提取到提取物中; 和(d)水洗步骤,其中在第二提取步骤中获得的加压状态的提取物在加压状态下与水逆流接触,条件是水的重量与重量的比例 将提取液设定为0.3以下,从而将提取液中所含的乙醇回收到水相中。