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裂化
相关语句
  cracking
    PERFORMANCE TEST OF META-Y-3A MOLECULAR SIEVE CRACKING CATALYST
    偏Y-3A分子筛裂化催化剂工业使用试验
短句来源
    COMMERCIAL TEST OF COGELLED Y-TYPE ZEOLITE CRACKING CATALYST
    共交Y型分子筛裂化催化剂工业使用试验
短句来源
    PREPRODUCTION OF Y-TYPE ZEOLITE CRACKING CATALYST AND ITS APPLICATION IN REFINERIES
    共Y分子筛裂化催化剂的研制与工业应用
短句来源
    A NEW SEMISYNTHETIC ZEOLITE CRACKING CATALYST
    一种新型半人造分子筛裂化催化剂的特性
短句来源
    RELATION BETWEEN STEAM DEACTIVATION AND SURFACE PROPERTIES OF ZEOLITE-CONTAINING CRACKING CATALYST
    分子筛裂化催化剂的水蒸汽减活与表面性质的关系
短句来源
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  cracked
    THE STRUCTURAL CHARACTERISTICS OF CRACKED COKE
    裂化焦的结构特征
短句来源
    DETERMINATION OF OLEFIN CONTENTS IN CRACKED HEAVY OILS BY RAPID TLC/FID METHOD
    用TLC/FID法快速测定裂化重质油中的烯烃含量
短句来源
    STUDY ON HYDROGEN-TRANSFER REACTION AND OLEFIN REDUCTION PERFORMANCE OF CRACKED NAPHTHA OVER A FCC CATALYST GOR
    催化裂化催化剂GOR的氢转移活性与降低汽油烯烃含量性能的研究
短句来源
    TECHNOLOGY FOR REDUCING OLEFIN IN CRACKED NAPHTHA-FDFCC PROCESS
    降低催化裂化汽油烯烃技术——FDFCC工艺
短句来源
    FDFCC process for cracked naphtha olefin reduction
    FDFCC工艺降低催化裂化汽油烯烃含量
短句来源
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  “裂化”译为未确定词的双语例句
    INVESTIGATION OF THE LUMPED KINETIC MODEL FOR CATALYTIC CRA CKING Ⅱ.A PRIOR SIMULATION FOR EXPERIMENTAL PLANNING
    催化裂化集总动力学模型的研究 Ⅱ.实验方案的计算机事前模拟
短句来源
    ECONOMY OF SLURRY OIL WITHDRAWAL IN A FCC UNIT
    催化裂化甩油浆的技术经济分析
短句来源
    A Study on Etherifing Technology of FCC Gasoline
    催化裂化汽油醚化改质的研究
短句来源
    LABORATORY STUDY ON ETHERIFICATION OF FCC GASOLINE
    催化裂化汽油醚化改质的试验研究
短句来源
    REUSE OF DESULPHURIZED WATER FROM RESID FCC UNIT
    渣油催化裂化脱硫净化水的回用
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  cracking
In addition, thermal cracking, thermal oxidization, carbonization and cyclization of organic substances on the surface of brake block can make the friction surface produce pores or cracks, thus fatigue wear occurs.
      
Study on reformulation of fluid catalytic cracking gasoline and increasing production of light olefins
      
Formation of coke in thermal cracking of jet fuel under supercritical conditions
      
Continuous-flow reactor experiments were carried out to study coke formation from thermal cracking of home-made jet fuel RP-3 under supercritical conditions.
      
The starting cracking temperature of RP-3 fuel was determined to be 471.8°C by differential scanning calorimetry (DSC).
      
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  cracked
The forward problem is to solve the natural frequencies through a cracked structural model and the inverse problem is to quantitatively determine the crack parameters using the experimental testing frequencies.
      
Dynamics analysis of a cracked dual-disk over-hung rotor-bearing system
      
At the early stage of maturation of the phloem ganglion, most of the phloem ganglion cells' vacuoles cracked, and the cytoplastic Ca2+ content increased in large number.
      
Solution of filtration problems in cracked and porous media by integral methods
      
The integral-equation methods first proposed for solving filtration problems by Barenblatt [1] were subsequently used to good effect when studying cracked and porous media [2, 3].
      
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Platforming reactions of n-heptane have been studied. The liquid products of platforming reactions of n-heptane were analyzed by methods of chromatography, fractional distillation, and Raman spectroscopy. A scheme of various reactions taking place under platforming conditions has been proposed. The effect of temperature, pressure, space velocity and catalyst life upon the degree of hydrocracking, isomerization and total conversion of n-heptane were investigated. Isomerization of n-heptane initially increased...

Platforming reactions of n-heptane have been studied. The liquid products of platforming reactions of n-heptane were analyzed by methods of chromatography, fractional distillation, and Raman spectroscopy. A scheme of various reactions taking place under platforming conditions has been proposed. The effect of temperature, pressure, space velocity and catalyst life upon the degree of hydrocracking, isomerization and total conversion of n-heptane were investigated. Isomerization of n-heptane initially increased with increase of contact time, passed through maximum, then decreased. This suggests that isomerization is an intermediate step of hydrocracking reaction. The results of hydrocracking and total conversion were analyzed kinetically under the following conditions: temperature, 455—515°, pressure, 20—40 atm., space velocity, 2.0—6.0 v/v/hr., catalyst life, 1—70 to 160—240 hrs. It was found that the hydrocracking reaction can be described by first order equation, and total conversion of n-heptane can be described by equation of first order reaction with retardation of products.

對正庚烷在鉑重整條件下的各種反應進行了考察。詳細分析了反應產品,並根據產品分析結果,提出了可能進行的一些反應的图式,考察了反應變數如温度、壓力、空速、催化劑使用時間等對於加氫裂化、異構化及總轉化程度的影響。並求得在溫度455—515°、壓力20—40大氣壓、空速2.0—6.0(體積/體積/小時)等試驗條件範圍內,催化劑使用初期與晚期的加氫裂化及總轉化反應的速率常數,動力學方程式及视活化能,加氫裂化反應服從一次反應式。正庚烷的總轉化服從反應產品有阻抑作用的一次反應式。並提出正庚烷的加氫裂化可能經過異構化階段的假設。

~~

在大型实验室设备上进行了石油粗蜡的高速热裂化试验.确定了物料平衡及产品组成.所得到的气体产品中不饱和烃含量达到76%;产品汽油馏分经硅酸铝轻度精制处理后,可得到辛烷值为80的稳定汽油;产品100-275°馏分以硅酸铝催化精制后,可得到含约50%不饱和烃的稳定馏分;高度不饱和的产品 C_5、C_6、C_7馏分可作为很有价值的石曲化学合成原料.

~~

研究了撫順頁岩油残油的高速裂化。在沸点高于200°的裂化产品参加循环的情况下,可得到49.1%的气体(包括C_4),4.7%的五碳餾分和37.8%的汽油餾分。气体产品中含有70%的烯烴,其中乙烯和丙烯各为26%。五碳餾分基本上由烯烴所組成,其中有約10%的2-甲基丁二烯-1,3,正戊烯-1約33%,2-甲基丁烯約13%。汽油餾分經酸碱洗滌后的性貭为:d_4~(20)0.7728,n_D~(20)1.4444,磺化98%,碘价184,含芳香烴和烯烴各約40%。以硅酸鋁催化精制后的汽油餾分可用作馬达燃料的组分,或經精餾而得到芳香烴。

 
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