Search Result

Select

Research Progress of S⁃Zorb Reaction Adsorption Desulfurization Technology

Li Shuanglin， Wei Min， Wang Haiyan

Abstract （462）

HTML

PDF （1108KB）（272）

S⁃Zorb reaction adsorption desulfurization technology has become one of the important gasoline deep desulfurization technologies because of its high efficiency desulfurization effect and mild process conditions. S⁃Zorb desulfurization technology was developed by Phillips company and has been widely promoted in China since it was exclusively acquired by Sinopec. However, the composition of its adsorbent has not been fully published. Therefore,the focus of the S⁃Zorb process research is on the localization of the adsorbent at present, and the activity and stability of the desulfurizer are continuously improved through in⁃depth research on the reaction adsorption mechanism. The process development and existing problems of S⁃Zorb reaction adsorption desulfurization technology and the latest progress of research and development of S⁃Zorb reaction adsorption desulfurization agent were reviewed, and the mechanism of reaction adsorption desulfurization was discussed.

2020, 33 (6): 19-25. DOI: 10.3969/j.issn.1006-396X.2020.06.004

Select

Preperation and Hydrodearomatization Performance of NiWP Catalyst Containing Hierarchical H β

Wang Yujia, Yue Yuan, Lu Cong, Wei Min

Abstract （344）

PDF （2437KB）（84）

The hierarchically mesoporous Hβ zeolite was synthesized by alkali treatment to commercial Hβ zeolite in NaOH solution. The composite carrier was prepared by mixing the hierarchical Hβ zeolite and Al2O3.The hierarchical NiWP/HβAl2O3 catalysts were prepared by incipient wetness impregnation method, and characterized by means of XRD, BET and TEM. The hydrodearomatization of the prepared NiWP/HβAl2O3 catalyst was evaluated in a miniature fixed bed reactor with fluid catalytic cracking diesel as raw material. The results suggested that the prepared NiWP/HβAl2O3 catalyst has an excellent hydrodearomatization activity, and under the condition of the reaction temperature 360 ℃, reaction pressure 8.0 MPa, hydrogen to oil volumetric ratio 800 and liquid hourly space velocity 1.0 h-1, the cetane number was increased from 7.21 of feed to 46.96 of product.

2016, 29 (2): 13-17. DOI: 10.3969/j.issn.1006-396X.2016.02.003

Select

Preparation and Catalytic Performance of Mo２ C／β Zeolite for Hydrodecarboxylation of Soybean Oil

WANG Hai-yan, BAI Ying-zhi, WEI Min

Abstract （854）

PDF （754KB）（659）

Mo_２ C／β zeolite catalysts were prepared using temperature － programmed reduction method with MoO_３ as precursor and modified β zeolite as carrier and characterized by XRD and TEM． The effects of reduction conditions on the catalyst performance were investigated．Hydrogenation of soybean oil was carried out in small fixed bed reactor．The results show that with temperature programming rate decreased ， the diffraction peak intensity of β － Mo_２ C increased． With the final carbonization temperature increased ，carbonation level gradually deepened ．When the temperature programming rate of 1 ℃ ／
min and final temperature of carbonization of650 ℃ ，β － Mo_２ C diffraction peak was moet clearest ．With hexane as carbon source ，Mo_２ C uniformly dispersed on the carrier ，with a high surface area ．Using Mo_２ C ／ β zeolite Loading 21.25%Mo₂ C as catalyst ，under the condition of reaction pressure 3.5 MPa ， space velocity 0.5 h^{－１}，volume ratio of hydrogen to oil 500，reaction temperature 280 ℃ and320 ℃ ，The pour point of hydrogenated soybean oil decreased down to －5～-10 ℃ and the cetane number kept more than 70.

2010, 23 (3): 37-40. DOI: 10.3696/j.issn.1006-396X.2010.03.008