Tianjin University

Wenchao Ma

Guanyi Chen

Beibei Yan

Zhanjun Cheng

Bin Liu

Junyu Tao

Yurou Mao

Terrence Wenga

Wanqing Li

Yanbin Zhang

Tianbao Gu

Sixuan Zeng

Chen Ma

Xiang Guo

Lei Zhong

Li'an Hou

Wenzhu Wu

Shu Tian

Yuru Sun

Jingnan Tian

A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.

Method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts

A corrosion-resistant nickel alloy, a preparation method thereof and, and a use thereof are provided. The alloy includes the following components in percentage by mass: 4.68-5.35% of B, 5.69-6.41% of W, 27.68-28.39% of Cr, 12.65-13.42% of Al, and the balance of Ni and inevitable impurities. The alloy disclosed by the present invention is a Ni—W—B ternary alloy with main components of Ni, W and B, wherein the three elements have strong high-temperature corrosion resistance at a temperature of about 600° C., and have the potential of solid solution hardening and precipitate formation because all belong to solid solution forming elements, so that a creep strength of a nickel alloy matrix is improved. Meanwhile, Al and Cr are further added in the alloy formula, so that AlOand CrOoxide layers can be formed, which play a role as a physical diffusion barrier against chlorine gas and other corrosive gases.

Corrosion-resistant nickel alloy, preparation method therefor and use thereof

Disclosed is a method for calculating combustion in the bed of a waste incinerator. The method is based on a model of combustion in a waste incinerator bed and comprises a water evaporation model, a volatile matter analysis model, a volatile matter combustion model, and a fixed carbon combustion model. The volatile matter of the volatile matter combustion model comprises CO, H, CH, NH, and HS. The volatile matter combustion model comprises a combustion reaction equation for said volatile matter and O, and respective equations for CO and CHreacting with water vapor. Equations governing the model of combustion in the bed of a waste incinerator comprise a continuity equation, an energy equation, a momentum equation, and a component equation. Boundary conditions of said governing equations comprise: equations of heat transfer and mass transfer from an upper boundary layer of the bed to the exterior; and equations of heat transfer and mass transfer from lower boundary layer of the bed to the exterior.

Method and device for calculating combustion in waste incinerator bed

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Tianjin, China

Wenchao Ma