China Petroleum Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Other

Xuhua Zhou

Junfeng Rong

Wei Zhang

Lin Cheng

Baoning Zong

Junying Zhu

Xugeng Huang

Qiang Fu

Jin Wang

Peng Yu

Zhenhua Jing

Xiaoyu Hong

Jingsong Liu

Changzhi Shi

Rong Junfeng

The present invention provides a process of cultivating microalgae and a joint method of same jointed with denitration. During the microalgae cultivation, EM bacteria is added into the microalgae suspension. In the nutrient stream for cultivating microalgae, at least one of the nitrogen source, phosphorus source and carbon source is provided in the form of a nutrient salt. During the cultivation, the pH of the microalgae suspension is adjusted with nitric acid and/or nitrous acid. The joint method includes (1) a step of cultivating microalgae; (2) a separation step of separating a microalgae suspension obtained from step (1) into a wet microalgae (microalgae biomass) and a residual cultivation solution; and (3) a NOx absorbing/immobilizing step of denitrating an industrial waste gas with the residual cultivation solution obtained from step (2). The nutrient stream absorbed with NOx obtained from step (3) is used to provide nitrogen source to the microalgae cultivation of step (1).

Process of cultivating microalgae and a joint method of same with a denitration process

The present invention provides a joint method of cultivating microalgae combined with denitrating an industrial waste gas and a system useful for the same. The joint method comprises the steps of: (1) a step of cultivating microalgae; (2) a separation step of separating a microalgae suspension obtained from step (1) into a wet microalgae (microalgae biomass) and a residual cultivation solution; (3) a NOx absorbing/immobilizing step of denitrating an industrial waste gas with the residual cultivation solution obtained from step (2); wherein the nutrient stream absorbed with NOx obtained from step (3) is used to provide nitrogen source to the microalgae cultivation of step (1). During the microalgae cultivation, EM bacteria is added into the microalgae suspension. The microalgae is preferablysp.,sp.,sp. orsp.

A process for preparing polyoxymethylene dimethyl ethers from methanol is disclosed. For example, the process comprises contacting methanol with at least one oxidant in the presence of at least one catalyst wherein the at least one catalyst comprises at least one Group VIB metal component, such as in an amount of from about 0.5 to about 50 wt % (in terms of metal oxide) and at least one Group VIII metal component, such as in an amount of from about 0.2 to about 20 wt % (in terms of metal oxide), and at least one molecular sieve having acidic catalytic activity, such as in an amount of from about 40 to about 95 wt %, based on the total weight of the at least one catalyst for a time sufficient to obtain polyoxymethylene dimethyl ethers.

Process of oxidative conversion of methanol

Described are a MgCl based carrier containing Ti(OR) and ROH, wherein R is C &tilde;C alkyl, and solid catalyst components made from said carrier. The carrier and the solid catalyst components according to the present invention are characterized in that their X-rays powder diffraction spectra, one or two main diffraction lines or a halo appears at 2&thgr; of 2&tilde;14&deg; and in the range of 2&thgr; of 14&tilde;50&deg;, there are the characteristic diffraction lines of anhydrous &agr;-MgCl . The carrier according to the present invention is directly obtained by reacting anhydrous magnesium chloride with an alcohol and can be used to prepare solid catalyst components without dealcoholization, and the solid catalyst components exhibit high polymerization activity when employed for polymerizing ethylene.

Magnesium chloride-alcohol carrier and olefin polymerization catalyst components made from the same

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Beijing, China

Xuhua Zhou