China Petroleum & Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Chunfeng Shi

Bin Zhu

Min Lin

Xingtian Shu

Jun Long

Xuhong Mu

Peng Yu

Junfeng Rong

Jingxin Xie

Mingsheng Zong

Weiguo Lin

Yingchun Ru

Changjiu Xia

Xinxin Peng

Yibin Luo

Xieqing Wang

Aiguo Zheng

Mudi Xin

Yanjuan Xiang

A carbonaceous material, based on the total weight of the carbonaceous material, contains 1-99 wt % of a carbon element, 0.2-60 wt % of a magnesium element, 0.5-60 wt % of an oxygen element and 0.1-40 wt % of a chlorine element. The process for preparing the carbonaceous material include (1) Mixing a solid carbon source, a precursor and water to produce a mixture; wherein said precursor contains a magnesium source and a chlorine source; (2) Drying the resulting mixture obtained in Step (1) to produce a dried mixture; and (3) Calcining the dried mixture obtained in Step (2). The carbonaceous material can be used in catalytic oxidation of hydrocarbons.

Carbon-based magnesium-containing composite material and synthetic method therefor

A heteroatom-containing nano-carbon material, based on the total weight of said heteroatom-containing nano-carbon material and calculated as the elements, has an oxygen content of 1-6 wt %, a nitrogen content of 0-2 wt %, a carbon content of 92-99 wt %. In its XPS, the ratio of the oxygen content as determined with the peak(s) in the range of 531.0-532.5 eV to the oxygen content as determined with the peak(s) in the range of 532.6-533.5 eV is 0.2-0.8; the ratio of the carbon content as determined with the peak(s) in the range of 288.6-288.8 eV to the carbon content as determined with the peak(s) in the range of 286.0-286.2 eV is 0.2-1; the ratio of the nitrogen content as determined with the peak(s) in the range of 398.5-400.1 eV to the total nitrogen content is 0.7-1. The heteroatom-containing nano-carbon material shows a good catalytic capability in dehydrogenation of hydrocarbons.

Heteroatom-containing nanocarbon material, preparation method and use thereof, and method for dehydrogenation reaction of hydrocarbons

This invention discloses an olefin oxidation process, including a step of under olefin oxidation conditions, successively passing a reaction feed from the No.1 catalyst bed through the No.n catalyst bed, wherein if the apparent velocity of each of the reaction materials passing from the No.1 catalyst bed through the No.n catalyst bed is respectively named as vto v, and if m represents any integer in the region [2, n], the relationship v&#x3c;vholds. The process according to this invention is capable of extending the service life of the catalyst, especially the single-pass service life thereof, and at the same time, suppressing any side-reaction over a prolonged period of time. This invention further discloses a fixed-bed reaction apparatus and a system for olefin oxidation.

Olefin oxidation process, reaction apparatus and system

The present invention relates to a titanium silicalite molecular sieve, wherein the crystal grain of the titanium silicalite molecular sieve has a ratio of (surface Si/Ti ratio):(bulk Si/Ti ratio) being larger than 1.1 and less than 5.

Titanium silicalite molecular sieve and its synthesis

The present invention relates to a full-Si molecular sieve, wherein the full-Si molecular sieve has a Q/Qof (10-90):1 wherein Qis the peak strength at the chemical shift of &#x2212;112&#xb1;2 ppm in theSi NMR spectrum of the full-Si molecular sieve, expressed as the peak height relative to the base line; and Qis the peak strength at the chemical shift of &#x2212;103&#xb1;2 ppm in theSi NMR spectrum of the full-Si molecular sieve, expressed as the peak height relative to the base line.

Full-Si molecular sieve and its synthesis process

A process for producing dimethyl sulfoxide, wherein said process comprises the following steps: (1) contacting hydrogen sulfide with methanol to produce a mixture containing dimethyl sulfide, and separating dimethyl sulfide from the mixture; and (2) in the presence or absence of a solvent, contacting dimethyl sulfide obtained in step (1) with at least one oxidant and a catalyst to produce a mixture containing dimethyl sulfoxide, said catalyst comprises at least one Ti&#x2014;Si molecular sieve.

Dimethylsulfoxide preparation method

A process of oxidizing cyclohexane, comprising feeding cyclohexane, an aqueous hydrogen peroxide solution and optionally an organic solvent into a reaction zone through a feed inlet thereof under the oxidation reaction conditions for contact, and providing all or most of the oxidation product at the reaction zone bottom, wherein a part or all of the packing in the reaction zone is a titanium silicate molecular sieve-containing catalyst. The process of oxidizing cyclohexane according to the present invention carries out the oxidation in the reaction zone, which, firstly, utilizes the latent heat from reaction sufficiently so as to achieve energy-saving; secondly, increases the yield of target product and the availability of oxidizer; and thirdly, allows the separation of the oxidation product from the raw material cyclohexane as the reaction proceeds, such that the cost for subsequent separations can be saved.

Process of oxidizing cyclohexane

A noble metal-containing titanosilicate material, characterized in that said material is represented with the oxide form of xTiO.100SiO.yEO.zE, wherein x ranges from 0.001 to 50.0; (y+z) ranges from 0.0001 to 20.0 and y/z&#x3c;5; E represents one or more noble metals selected from the group consisting of Ru, Rh, Pd, Re, Os, Ir, Pt, Ag and Au; m is a number satisfying the oxidation state of E. The crystal grains of said material contain a hollow structure, or a sagging structure. In said material, the synergistic effect between the noble metal and the titanosilicate are enhanced. As compared with the prior art, the selectivity, catalytic activity and stability of the reaction product are obviously increased in the oxidation reaction, e.g. the reaction for preparing propylene oxide by epoxidation of propylene.

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Beijing, China

Chunfeng Shi