Petrochina Company Limited

Institute of Transfusion Medicine, Academy of Military Medical Sciences, People's Libration Army of China

Institue of Transfusion Medicine, Academy of Military Medical Sciences, People's Liberation Army of China

Wencheng Zhang

Jintao Guo

Quanguo Zhang

Guojia Zhang

Ruifeng Li

Famin Sun

Xianjun Wu

Chunmei Yu

Shanbin Gao

Bin Xie

Lili Jiang

Wenyong Liu

Tan Zhao

Rui Li

Xinmiao Wang

Cheng Tang

Xiaodong Yang

Yanfeng Liu

Sheng Hu

Lei Zhang

Gang Wang

Dan Wang

Lei Fang

Xuan Wang

Yunfang Wang

Yu Liang

Fang Yan

Hongling Chu

Xuetao Pei

Zhihua Zhang

Tiegang Xu

Chunming Dong

Shengbo Sun

Guoren Cai

Baoli Ma

Weichi Xu

Xiaofeng Wang

Mingyang Chang

Guangming Wen

Yuanyuan Ji

Ran Sun

Jinhe Song

Yuxiao Feng

Mingwei Tan

Liyan Guo

Jinxian Jiang

Liru Cong

Yuhe Yang

Dongqing Wang

Jingying Zhao

Shuyong Wang

Tiandi Tang

Hong Li

Wenqian Fu

Jinhua Qin

Runsheng Shen

Provided are a small molecule compound combination for reprogramming digestive tract derived epithelial cells to endodermal stem/progenitor cells, a reprogramming method and an application. Human gastric epithelial cells (hGECs) are used as initiating cells, human gastric subepithelial myofibroblasts (aGSEMFs) are used as a trophoblast, a compound combination having all or a plurality of FBP, Bay K 8644, Bix01294, SB431542 or A813-01, VPA, RG108, PD0325901 and PS48 including SB or A83 is used to reprogram digestive tract derived epithelial cells to endodermal stem/progenitor cells, and the endodermal stem/progenitor cells can be used for inducing differentiation towards liver cells, pancreatic beta cells and intestinal cells.

Small molecule compound combination for reprogramming digestive tract derived epithelial cells to endodermal stem/progenitor cells, reprogramming method and application

The invention provides a method for synthesizing a mesoporous zeolite ETS-10 containing a metal without a templating agent. The method according to the invention comprises the steps of: mixing a silicon source with a NaOH solution to obtain a mixed solution so that the content of NaO in the mixed solution is 10.0% to 20.0% by weight; adding a KOH or KF solution so that the content of KO is 10.0% to 25.0% by weight and stirring it well; adding a titanium source solution and stirring it well; adding a precursor compound containing metal Ni and/or Co and stirring it well; and subjecting it to a crystallization reaction to obtain the mesoporous zeolite ETS-10. The mesoporous zeolite ETS-10 obtained by the invention has a specific surface area of 320 to 420 m/g, a mesoporous volume of 0.11 to 0.21 cm/g, and thus can be used as a catalyst and a support thereof in synthesis industry for macromolecular fine chemicals.

Methods for synthesizing mesoporous zeolite ETS-10 containing metal without a templating agent

The present invention relates to a method for preparing a sulfur-resistant catalyst for aromatics saturated hydrogenation, comprising the steps of: preparing noble metal impregnation solutions from a noble metal and deionized water or an acid solution; impregnating a carrier with the impregnation solutions sequentially from high to low concentrations by incipient impregnation; homogenizing, drying, and calcinating to obtain the sulfur-resistant catalyst for aromatics saturated hydrogenation. The catalyst for aromatics saturated hydrogenation prepared by the method according to the present invention is primarily used in processing low-sulfur and high-aromatics light distillate, middle distillate, atmospheric gas oil, and vacuum gas oil. The method according to the present invention is advantageous in that the catalyst for aromatics saturated hydrogenation exhibits good hydrofining performance, superior aromatics saturation performance, high liquid yield of products, as well as excellent desulfurization and sulfur-resistance, and the catalyst has remarkable effects in use and a great prospect of application.

Sulfur-resistant catalyst for aromatics saturated hydrogenation and preparation method thereof

Disclosed are a method for preparing a noble metal hydrogenation catalyst comprising preparing a carrier from a molecular sieve having a 10-member ring structure and/or an amorphous porous material; preparing a noble metal impregnation solution; and preparing noble metal impregnation solutions in a concentration gradient ranging from 0.05 to 5.0 wt % with deionized water, and sequentially impregnating the carrier with the impregnation solutions from low to high concentrations during the carrier impregnation process, or preparing a noble metal impregnation solution at a low concentration ranging from 0.05 to 0.5 wt % and impregnating the carrier by gradually increasing the concentration of the noble metal impregnation solution to 2.0 to 5.0 wt % in the impregnation process, followed by homogenization, drying, and calcination, as well as a noble metal hydrogenation catalyst, use thereof, and a method for preparing lubricant base oil.

Method for preparing noble metal hydrogenation catalyst, noble metal hydrogenation catalyst and use thereof

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Beijing, China

Wencheng Zhang