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- heat cracking reaction 热裂化反应
- Not only were there the gas solid two phase turbulent flows, but also there were heat transfer and cracking reaction in the commercial flow catalytic cracking(FCC) riser reactors. 工业催化裂化提升管反应器内既存在着气固两相的湍流流动,又存在着传热和裂化反应,而且这些过程是相互影响、高度耦合在一起的。
- Heat produced by burning coke is used to continue the primary reaction as the hot catalyst is circulated back to the reactor and provides the heat of reaction for the cracking reaction. 燃烧的焦炭所产生的热量使主反应持续地进行,同时热的催化剂流通回到反应器并为之提供热量。
- The invention is a new heat supply manner cracking furnace and the heat cracking method. 本发明为新型供热方式的裂解炉及用其进行热裂解的方法。
- The effects of the compostion s of different catalytic stocks on catalytic cracking reaction was discussed. 讨论了不同催化原料油组成情况及其对催化裂化反应的影响。
- The latest research progress on the catalysts used in the cracking reaction of MTBE to produce isobutene was reviewed. 本文综述了近年来MTBE裂解制备高纯异丁烯催化剂的新进展。
- Yellow water flavoring liquid was produced by yellow water after primary filtration and addition of high activity bio-enzyme processed by catalyzing heat cracking. 将黄水粗滤后,添加高活性生物酶进行催化热裂处理,制得黄水调味液。该黄水调味液具有窖香、糟香的复合香和尾净的特点。
- The EDC cracking reaction rate is higher in the wall zone and reaches a maximum at 0.3 of dimensionless length of reactor coil. 表明确定最优的炉管管径时必须考虑提高裂解速率与降低结焦速率之间的平衡。
- The lumping strategies of catalytic cracking reaction and their reaction networks are concluded,their advantages and disadvantages are discussed. 对催化裂化反应集总方法及相应的反应网络进行归纳,并讨论其优缺点;
- There exists intensive mass-transfer, heat-transfer and momentum-transfer between catalysts and cracking reaction synchronously. 催化裂化提升管反应器内原料油和催化剂颗粒间存在强烈地传质、传热和动量传递,同时进行着复杂地裂化反应。
- To meet this challenge, endothermic fuels that chemically decompose into energetic gases via cracking reactions and provide extremely high heat sink have been developed. 因此有人提出了吸热燃料的概念,即利用燃料发生的吸热反应来提高燃料的热沉,从而满足高超音速飞行的冷却要求。
- The heat cracked my lips. 我热得嘴唇开裂。
- The existing of poypropylene can raise the liquid fraction ratio, especially the light oil ratio, so it can fortify the effect of the cracking reaction of polyene to light oil. 摘要在废旧聚烯烃的裂解反应中,聚丙烯的存在,可以提高轻油馏份的收率,增强反应的油化效果,本文称之为聚烯烃裂解反应的增强效应。
- It is confirmed once again by transmission electron micrograph (TEM) and electron paramagnetic resonance (EPR) that Ni(0) is the active renter for cracking reaction. 用透射电子显微镜(TEM)及电子顺磁共振技术(EPR)进一步证实了Ni(0)是裂化反应的活性中心。
- With the raising of partial hydrogen pressure, the cracking reaction of tert-butylbenzene is prompted, while the conversion of butylbenzene is restricted. 叔丁基苯的转化率随氢分压的升高而提高,正丁基苯的转化率随氢分压的升高而降低。
- The existing of poypropylene can raise the liquid fraction ratio,especially the light oil ratio,so it can fortify the effect of the cracking reaction of polyene to light oil. 在废旧聚烯烃的裂解反应中,聚丙烯的存在,可以提高轻油馏份的收率,增强反应的油化效果,本文称之为聚烯烃裂解反应的增强效应。
- The analytical results show that plastic yield occurs in the tip of V-shaped notch of 45 steel bar,20 steel bar and 60Si2Mn bar under the condition of given parameters,but the heat crack only appears in the tip point of V-shaped notch of 60Si2Mn bar. 研究结果表明,对于45%23钢、20%23钢、60Si2Mn棒料来说,在现有给定的参数下,其V型槽尖端均发生了塑性变形,但只有60Si2Mn棒料在其V型槽尖端点产生了热裂纹。
- Effect of temperature on gasoline olefins cracking reaction over acid catalysts in fixed fluidized bed(FFB)reactor was studied and 1-heptene was used as model compound. 以1-庚烯为模型化合物,在小型固定流化床上研究了反应温度对汽油烯烃在酸性催化剂上反应的影响。
- The types of those cracks are summarized as three kinds: plastic shrinkage cracking, dry shrinkage cracking and hydration heat cracking. 将引起混凝土裂缝的类型归纳为塑性收缩开裂,干燥收缩开裂,水化热开裂三种,并对其表象及成因进行了阐述。
- The predictions reveal that flow behavior is significantly changed when cracking reaction take place inside downer reactors and scale-up of reactors can cause reduction of yield. 而反应器床径的增大将导致转化率和各产物收率的下降。