Zhejiang University

Other

Weihong Wu

Xiang Gao

Chenghang Zheng

Yongxin Zhang

Zhongyang Luo

Kefa Cen

Mingjiang Ni

Tao Wang

Qinhui Wang

Mengxiang Fang

Chunjiang Yu

Jinsong Zhou

Shurong Wang

Zhenglun Shi

Dian Xu

Can Zhou

Hao Song

Hongmin Yu

Weiguo Weng

Chang Liu

Yi Chen Zhong

Peng Liu

Yang Zhang

Leming Cheng

Yifan Wang

Xiao Zhang

Kunzan Qiu

Zhongyang Zhao

Qingyi Li

Haidong Fan

Haitao Shen

Zhiying Zhou

Qihao Chen

Libin Yu

Yishan Guo

Shaojun Liu

Haitao Zhao

Xinbo Zhu

Ruiyang Qu

Yueqi Huang

Lemin Cheng

Zuliang Wu

You Zhang

Qinwu Li

The invention relates to an intelligent multi-pollutant ultra-low emission system and a global optimization method thereof. The intelligent multi-pollutant ultra-low emission system comprises a device layer, a sensing layer, a control layer and an optimization layer from bottom to top. The global optimization method comprises: obtaining an accurate description multiple pollutants in the generation, migration, transformation and removal process in multiple devices by means of accurate modeling of a multi-device multi-pollutant simultaneous removal process of the ultra-low emission system; accurately evaluating multi-pollutant emission reduction costs under different loads, coal qualities, pollutant concentrations and operating parameters through a global operating cost evaluation method of the ultra-low emission system; realizing minute-level planning and optimization of emission reductions of a global pollutant emission reduction device under different emission targets through a multi-pollutant, multi-target and multi-condition global operating optimization method; and guaranteeing reliable emission reduction and margin control of the pollutants through an advanced control method for reliable up-to-standard ultra-low emission of the pollutants.

Intelligent multi-pollutant ultra-low emission system and global optimization method thereof

A COdesorption system suitable for limited space in a complex sailing region comprises an exhaust boiler, a compact COabsorber, a compact COlean-rich liquid heat exchanger, a compact COdesorber, a compact COrich liquid preheating device, a compact COrich liquid reboiling pre-desorption device and an intelligent control platform. Further, a global optimization control method for the COdesorption system suitable for limited space in a complex sailing region is further established based through a knowledge and data-driven exhaust extraction flow accurate-prediction model for a heat source of a COrich liquid preheating device and a steam extraction flow accurate-prediction model for a heat source on an upper section of a COrich liquid reboiling pre-desorption device to realize flexible control of operation parameters of the desorption system under different operating conditions of an engine.

COdesorption system suitable for limited space in complex sailing region and flexible control method

The present invention relates to a method for carbon dioxide capture and concentration by partitioned multistage circulation based on mass transfer-reaction regulation. In the present invention, multiple means such as multistage circulating absorption, intelligent multi-factor regulation, pre-washing and cooling, inter-stage cooling, post-stage washing, slurry cleaning, cooling water waste heat utilization, small-particle-size and high-density spraying, external strengthening field such as a thermal field/ultrasonic field/electric field, and catalysis by composite catalyst are adopted, so that the target for low cost, low energy consumption, stability and high efficiency is realized. The secondary pollutants are effectively inhibited while carbon dioxide is efficiently captured; meanwhile, high-efficiency capture, low-energy desorption, and high-purity concentration of carbon dioxide are implemented. From top to bottom in sequence, the multistage circulation is used to remove aerosols, improves carbon capture efficiency, maintains absorption rate, concentrates solution, which reduces the carbon emission reduction cost.

Method for carbon dioxide capture and concentration by partitioned multistage circulation based on mass transfer-reaction regulation

Disclosed are a catalyst for synergistic control of oxynitride and mercury and a method for preparing the same. The catalyst includes the following components by mass percentage: a carrier: TiO2 72%-98.6%, active components: V2O5 0.1%-5%, WO3 1%-10%, Cr2O3 0.1%-5% and Nb2O5 0.1%-5%, and a co-catalyst of 0.1%-3%. The present invention can be used for reducing the oxynitrides in a flue gas, meanwhile oxidizing zero-valent mercury into bivalent mercury and then controlling the reactions, has relatively high denitration performance and also has high mercury oxidation performance; compared with current commercial SCR catalysts, the mercury oxidation rate of the catalyst is improved to a great extent, which can adapt to the requirements for mercury removal in China's coal-fired power plants, the conversion rate of SO2/SO3 is relatively low, and the catalyst has a better anti-poisoning ability, and is a new catalyst with a low cost and high performance.

Catalyst for synergistic control of oxynitride and mercury and method for preparing the same

Disclosed is a method for regenerating a SCR denitration catalyst assisted by microwaves. The method comprises: (1) a poisoned SCR denitration catalyst is immersed in deionized water, and the SCR denitration catalyst is cleaned by a bubbling method; (2) the SCR denitration catalyst is transferred to a container containing a pore-expanding solution for a soaking treatment; (3) the SCR denitration catalyst is transferred to a microwave device and treated for 1-10 minutes; (4) the SCR denitration catalyst is transferred to a container with an activating liquid and impregnated for 1-4 hours; (5) the SCR denitration catalyst is dried with microwaves for 1-20 minutes; and (6) the SCR denitration catalyst is calcined under conditions of 500-600&#xb0; C. for 4-7 hours. The present invention has readily available raw materials, is simple and energy-saving in device and process, and is suitable for industrial scale regeneration. The catalyst treated by the method of the present invention has the advantages of loose pore channels, obviously optimized pore structures, significantly improved catalyst surface conditions, high activity, and good economic benefits.

Method for regenerating SCR denitration catalyst assisted by microwaves and device therefor

A free radical injection ionizer for flue gas treatment with corona discharge includes an injection device for releasing free radical source substances and an electrode device for producing corona, wherein the injection device and the electrode device are arranged separately, wherein the electrode device includes a conductive pole, and discharge tips arranged on the upper and lower sides of the conductive pole at equal intervals, and the injection device includes nozzles symmetrically arranged on two sides of the electrode device, and two lines of holes axially arranged on the walls of the nozzles nearby the electrode device, the axial lines of the holes directing the discharge tips nearest the holes.

Free radical injection ionizer for flue gas treatment with corona discharge

Growing community of inventors

Hangzhou, China

Weihong Wu