1) specific coking
比积碳
1.
The results showed that FCC model catalysts with beta-zeolite modified by phosphorous as additive could increase conversion (MAT index) of raw oil,reduce specific coking and olefin content,and enhance research octane number(RON) in cracking gasoline.
结果说明,FCC催化剂中加入一定量磷改性β沸石可以提高原料油的转化率、降低催化剂的比积碳及催化裂化汽油的烯烃含量。
3) coke deposition
积碳
1.
Considering that micro combustors are easy to flameout, low efficiency and problems of coke deposition and micro flow.
因微型燃烧器内微尺度燃烧易熄火、燃烧效率不高,存在催化重整过程中的积碳、微尺度等问题,可利用甲烷和湿空气中水蒸汽预混催化重整产氢来强化燃烧,对预混腔内催化重整、积碳及流动特性进行模拟,探讨了微型预混腔中甲烷、水蒸汽重整过程中水碳比、质量流量和催化壁面温度对催化重整、积碳、流动等的影响。
2.
The deactivation of the titanosilicalite molecular sieves was a result of coke deposition.
对比了不同孔径的钛硅分子筛催化剂Ti MCM 4 1 (Si/Ti摩尔比 =2 7)和TS 1 (Si/Ti摩尔比 =2 5 )对环己酮肟气相贝克曼重排反应的催化性能 ,分析了它们在重排反应中的积碳量和孔体积的变化 。
4) Carbon deposition
积碳
1.
The Resistance of Carbon Deposition of Methane Partial Oxidation Catalyst:the DFT Study;
甲烷部分氧化催化剂抗积碳性能的DFT研究
2.
Behavior of carbon deposition on SAPO-34 molecular sieve catalyst(abbreviate catalysts)in transformation of methanol to olefins was investigated in a fixed bed integral reactor.
在固定床积分反应器内考察了甲醇制烯烃反应过程中SAPO-34分子筛催化剂(以下简称催化剂)上积碳的生成规律,实验结果表明,随着反应温度的升高,催化剂积碳量呈指数规律增长,反应初始阶段的积碳生成速率很快,随后趋于平缓;用水作稀释剂,可以有效地减缓催化剂的积碳速率;催化剂床层内呈现明显的积碳分布,床层入口处的积碳量(质量分数)平均为9。
3.
Influences of pressure and temperature on coke forming were introduced; the ranges of temperature and pressure which reduce carbon deposition and promote the reaction were analyzed; methods of developing new materials that prevent carbon deposition were introduced, such as, effect of promoter, effect of catalyst and choices of different su.
对该反应在SOFC阳极活化及重整的反应机理进行了探讨;讨论了反应温度、压力等因素对阳极表面产生积碳的影响,分析了有利于消除积碳、促进反应进行的压力及温度范围;介绍了开发新型、高效、抗积碳的阳极材料来改善SOFC阳极积碳状况的方法,如:在阳极材料中添加不同的活化成分、助剂及选择不同载体等。
5) coking
[英][kəuk] [美][kok]
积碳
1.
Effects of phosphorus modification and steam treatment on crystalline structure,acidity,wettability and coking of the catalysts were investigated by means of XRD,pyridine-IR,NH3-TPD and Washburn analysis.
对加氢尾油裂解生产润滑油基础油的ZSM-5分子筛催化剂进行了水蒸气处理和磷改性,采用X射线衍射、吡啶吸附-红外光谱、NH3程序升温脱附和Washburn法等技术对催化剂进行了表征,考察了水蒸气和磷改性对催化剂的酸性、润湿性、积碳量和积碳组成的影响。
2.
This paper summarized the causes of coking on primary refoming catalyst for nature gas.
本文概述了天然气一段转化催化剂积碳的原因,提出了积碳模型和预防措施。
3.
Effect of reaction temperature on coking deactivation of a modified HY zeolite catalyst for alkylation of benzene with propylene was investigated.
结果表明,在较低反应温度下,催化剂失活的原因可能是由于沸石孔口直径为0 7～0 8nm,在超笼内生成较大分子的产物或中间化合物很难扩散出去,滞留在超笼中,导致孔口堵塞;在较高反应温度下,催化剂失活原因可能是催化剂活性中心缓慢地被积碳占据,直至积碳堵塞孔口后,活性便迅速下降。
6) carbon deposit
积碳
1.
Moreover, the chemical nature and physical properties of the carbon deposit formed on Mo/MCM-22 and Co-Mo/MCM-22 catalysts were studied by temperature-programmed reaction with hydrogen (TPH) and temperature-programmed reaction with CO 2 (TPCO 2) combining w.
采用程序升温表面加氢反应、程序升温表面二氧化碳反应和热重分析等方法对催化剂表面的积碳物种进行了表征 。
2.
Traditional Ni catalyst for the reaction of CO_2-CH_4 reforming to synthesis gas is easily deactivated owing to carbon deposit, so work searching for catalysts that are highly stable and active for this reaction has been intensively done.
采用水热合成法、溶胶凝胶法和共沉淀 负载法制备了相同NiO含量的Ni ZrO2 CeO2 Al2 O3催化剂 ,考察了它们在CH4 CO2 重整反应中的催化性能及稳定性 ,测定了积碳量 。
3.
This paper gives you an example to analyze the reason on explosion of carbon deposit in nitrogen－ hydrogen compressor system in mid－ sized nitrogen plant.
以某厂实例分析了中型氮肥厂氮氢压缩机系统积碳爆炸的原因，提出了预防对策。
补充资料：重油积碳清洗剂
重油积碳清洗剂由溶剂、助溶剂、渗透剂、剥离剂等复配而成的清洗剂，除有效清除各类油污外，对各类碳化污垢具有显著作用是应用渗透剥离的原理，快速使碳性物从金属表面呈片状剥落，同时又不会腐蚀、损伤母体和金属零件的精度来达到清洗的完美效果。除一般积碳的时间为30分钟左右。绝对强力快速！。可用于清除发动机内壁、压缩机、喷油嘴、油换热器、螺杆等零件上的积炭以及积碳与油污的共聚物。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条