The medium pressure hydroupgrading process (MHUG) unit with an 800 kt/a processing capacity of Jinzhou Petrochemical Company is used to hydroupgrade the mixture of FCC LCO fuel and straight run diesel fuel in the pres...The medium pressure hydroupgrading process (MHUG) unit with an 800 kt/a processing capacity of Jinzhou Petrochemical Company is used to hydroupgrade the mixture of FCC LCO fuel and straight run diesel fuel in the presence of RN/RT series catalysts for improvement of the quality of the diesel fuel. Meanwhile, catalytic reforming feedstock is also obtained. The sulfur, nitrogen and aromatics contained in the hydroupgraded diesel fuel products can be minimized and the cetane number can be heightened. The produced clean fuels can meet the requirements of environmental protection.展开更多
With the increasing heavy and inferior quality of global oil resou rces,the efficient utilization of crude oil has become a critical challenge to be solved in the energy field.This work intends to propose a feasible w...With the increasing heavy and inferior quality of global oil resou rces,the efficient utilization of crude oil has become a critical challenge to be solved in the energy field.This work intends to propose a feasible way of crude oil pretreatment in the refining process.A comparison of the comprehensive performance differences between thermal processing(TP)and slurry phase hydroupgrading(SPH)treatments revealed that SPH had a great upgrading effect for Arabian heavy crude oil under 390℃and oil-soluble MoS_(2) catalyst.Compared with the feedstock,the asphaltene content of TP product increased by13.2 wt%,that in SPH product dropped by about 19.8 wt%.And the total distillate yield(≤540℃)of SPH increased by 4.4 wt%compared to the TP.The results of SARA separation and X-Ray Diffraction(XRD)showed that SPH can not only inhibit the occurrence of free radical reactions,but also dissociate the original asphaltene.The detailed composition of the processed samples was characterized by gas chromatography-mass spectrometry(GC-MS)and electrospray ionization orbitrap mass spectrometry(ESI Orbitrap MS)to explore the molecular transformation mechanism of different processes.There are a considerable number of-S-bonds in asphaltene as important structural connection hubs.The process of SPH can promote the production of light hydrocarbons while effectively removing heteroatom compounds.Finally,we considered that it is necessary to carry out the SPH pretreatment for Arabian heavy crude oil.展开更多
Abstract： This article introduces the development and application of the medium-pressure hydro-upgrading （MHUG） tech- nology developed by the Research Institute of Petroleum Processing （RIPP）. The MHUG technology...Abstract： This article introduces the development and application of the medium-pressure hydro-upgrading （MHUG） tech- nology developed by the Research Institute of Petroleum Processing （RIPP）. The MHUG technology based on the chemistry of diesel hydro-upgrading reactions has the advantages of flexible product slate and excellent product quality that can in- crease the cetane rating of diesel fuel up to more than 15 units. The hydrotreating and hydro-upgrading catalysts associated with the MHUG technology have outstanding performance to meet the demand of MHUG technology for hydro-saturation and selective ring-opening of aromatic rings. New MHUG process flow scheme can further increase the yield and selectivity of target products. Commercial application of multiple MHUG units has revealed that the MHUG technology designated for clean diesel production features good feedstock adaptability and operating stability.展开更多
Evaluation of hydrocracking catalyst CHC-1 showed superior qualities ofcatalyst CMC-1. When it was used for hydrocracking reaction, the yield of middle distillates (jetfuel and diesel fuel) can reach more than 71 m%. ...Evaluation of hydrocracking catalyst CHC-1 showed superior qualities ofcatalyst CMC-1. When it was used for hydrocracking reaction, the yield of middle distillates (jetfuel and diesel fuel) can reach more than 71 m%. When it was used for medium-pressurehydro-upgrading of Daqing FCC diesel fuel, diesel density was decreased by 0.0284―0.0365 g/cm^3(20℃). Cetane number increased by 7.8―10.5 and the contents of sulphur and nitrogen wereremarkably reduced. The storage stability of the upgraded diesel was improved.展开更多
文摘The medium pressure hydroupgrading process (MHUG) unit with an 800 kt/a processing capacity of Jinzhou Petrochemical Company is used to hydroupgrade the mixture of FCC LCO fuel and straight run diesel fuel in the presence of RN/RT series catalysts for improvement of the quality of the diesel fuel. Meanwhile, catalytic reforming feedstock is also obtained. The sulfur, nitrogen and aromatics contained in the hydroupgraded diesel fuel products can be minimized and the cetane number can be heightened. The produced clean fuels can meet the requirements of environmental protection.
基金supported by grants from the National Natural Science Foundation of China(Nos.U22B20144,52274308,22278440 and 22078362)Key R&D Program of Shandong Province,China(No.2021ZLGX06)Shandong Provincial Technology Innovation Guidance Plan(No.YDZX2023060)。
文摘With the increasing heavy and inferior quality of global oil resou rces,the efficient utilization of crude oil has become a critical challenge to be solved in the energy field.This work intends to propose a feasible way of crude oil pretreatment in the refining process.A comparison of the comprehensive performance differences between thermal processing(TP)and slurry phase hydroupgrading(SPH)treatments revealed that SPH had a great upgrading effect for Arabian heavy crude oil under 390℃and oil-soluble MoS_(2) catalyst.Compared with the feedstock,the asphaltene content of TP product increased by13.2 wt%,that in SPH product dropped by about 19.8 wt%.And the total distillate yield(≤540℃)of SPH increased by 4.4 wt%compared to the TP.The results of SARA separation and X-Ray Diffraction(XRD)showed that SPH can not only inhibit the occurrence of free radical reactions,but also dissociate the original asphaltene.The detailed composition of the processed samples was characterized by gas chromatography-mass spectrometry(GC-MS)and electrospray ionization orbitrap mass spectrometry(ESI Orbitrap MS)to explore the molecular transformation mechanism of different processes.There are a considerable number of-S-bonds in asphaltene as important structural connection hubs.The process of SPH can promote the production of light hydrocarbons while effectively removing heteroatom compounds.Finally,we considered that it is necessary to carry out the SPH pretreatment for Arabian heavy crude oil.
文摘Abstract： This article introduces the development and application of the medium-pressure hydro-upgrading （MHUG） tech- nology developed by the Research Institute of Petroleum Processing （RIPP）. The MHUG technology based on the chemistry of diesel hydro-upgrading reactions has the advantages of flexible product slate and excellent product quality that can in- crease the cetane rating of diesel fuel up to more than 15 units. The hydrotreating and hydro-upgrading catalysts associated with the MHUG technology have outstanding performance to meet the demand of MHUG technology for hydro-saturation and selective ring-opening of aromatic rings. New MHUG process flow scheme can further increase the yield and selectivity of target products. Commercial application of multiple MHUG units has revealed that the MHUG technology designated for clean diesel production features good feedstock adaptability and operating stability.
文摘Evaluation of hydrocracking catalyst CHC-1 showed superior qualities ofcatalyst CMC-1. When it was used for hydrocracking reaction, the yield of middle distillates (jetfuel and diesel fuel) can reach more than 71 m%. When it was used for medium-pressurehydro-upgrading of Daqing FCC diesel fuel, diesel density was decreased by 0.0284―0.0365 g/cm^3(20℃). Cetane number increased by 7.8―10.5 and the contents of sulphur and nitrogen wereremarkably reduced. The storage stability of the upgraded diesel was improved.
