residue cracking

The evaluation results showed that under optimized process conditions, the ethylene yield of typical paraffinic atmospheric residue through single pass cracking reaches 26% and the total yield of olefins ( C 2~ C 4) exceeds 50%.

评价试验结果表明，典型石蜡基常压渣油在优化的工艺条件下，单程裂解的乙烯质量产率可达26%，C2～C4总烯烃质量产率超过50%。

Effect of hydrogen donor and precursor of donor on catalytic hydro-cracking reaction of residue oil

供氢剂及其前身物在渣油加氢裂化中的作用

Comparison tests were made between RU small riser catalyst test apparatus and commercial residue fluid catalytic cracking ( RFCC) unit under the same reaction and regeneration condition. The results showed that a strong correlation between both of them.

通过不同阶段随机抽样实验比较，使用工业重油催化裂化（RFCC）装置进料和催化剂（平衡剂），采用相同的反应和再生条件，在RU小型提升管催化剂评价装置上做比较实验。

The authers has studied the phase characteristics and phase equilibrium of SDA ( solvent-deasphalting) of Dagang residue-I C 4 and Dagang residue mixed with some CCDO ( catalytic cracking decant oil)-I C 4 system under subcritical conditions systematically.

系统地研究了大港渣油－异丁烷体系及混有催化裂化澄清油的大港渣油－异丁烷体系在亚临界条件下，溶剂脱沥青过程的相特性及相平衡。

It has been found out that the major culprits for the corrosion cracking are the concentration of harmful ions from caustic wash and material settlement and residue tension strain.

装置碱洗、物料沉积导致有害离子浓缩及设备存在残余拉应力是造成腐蚀开裂的主要原因。