Simulation analysis of Co-Pyrolysis of oil shale and wheat straw based on the combination of chain reaction kinetics and improved CPD models

The complex composition and molecular structure of biomass lead to more complex and diversified chemical reactions in the pyrolysis. According to the structural characteristics of the reactants, this paper simplifies the pyrolysis process and extends the research focus from the micro-molecular elementary reactions to the macro reaction kinetics. The wheat straw is chosen as the investigated biomass, and the promoted chemical percolation devolatilization (CPD) with modified pseudo-grid and chain reaction kinetics (CRK) pyrolysis models were constructed for predicting the pyrolysis characteristics. Compared with the experimental results, the prediction errors of char, oil and gas production are in a reasonable range of < 10 %. Moreover, the reliability of the model is verified by comparing with the experimental thermogravimetric curve, which shows that the model could well predict the mass loss, product distribution and component characteristics, and provides a reasonable prediction for the pyrolysis of biomass.

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OXIDATION CHARACTERISTICS OF THE SEMICOKE FROM THE RETORTING OF OIL SHALE AND WHEAT STRAW BLENDS IN DIFFERENT ATMOSPHERES

Oil Shale ◽

10.3176/oil.2019.1.04 ◽

2019 ◽

Vol 36 (1) ◽

pp. 43 ◽

Cited By ~ 3

Author(s):

M MU ◽

X HAN ◽

B CHEN ◽

X JIANG

Keyword(s):

Wheat Straw ◽

Oil Shale ◽

Oxidation Characteristics

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FCO: UV spectrum, self-reaction kinetics and chain reaction with F2

Chemical Physics Letters ◽

10.1016/0009-2614(92)80051-c ◽

1992 ◽

Vol 199 (1-2) ◽

pp. 71-77 ◽

Cited By ~ 32

Author(s):

M. Matti Maricq ◽

Joseph J. Szente ◽

Gregory A. Khitrov ◽

Joseph S. Francisco

Keyword(s):

Reaction Kinetics ◽

Chain Reaction ◽

Uv Spectrum

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Time-Resolved O3Chemical Chain Reaction Kinetics via High-Resolution IR Laser Absorption Methods

The Journal of Physical Chemistry A ◽

10.1021/jp972486k ◽

1998 ◽

Vol 102 (11) ◽

pp. 1965-1972 ◽

Cited By ~ 6

Author(s):

Axel Kulcke ◽

Brad Blackmon ◽

William B. Chapman ◽

In Koo Kim ◽

David J. Nesbitt

Keyword(s):

High Resolution ◽

Reaction Kinetics ◽

Chain Reaction ◽

Time Resolved ◽

Laser Absorption ◽

Ir Laser

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DNA Amplification Efficiencies of PCR Chips Using Different Heaters and Channels

ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B ◽

10.1115/mnht2008-52046 ◽

2008 ◽

Author(s):

Yung-Chiang Chung ◽

Chuan-You Ye ◽

Li-Wei Lai

Keyword(s):

Simulation Analysis ◽

Dna Amplification ◽

Micro Electro Mechanical System ◽

Reaction Chamber ◽

Experimental Result ◽

Effect Of Temperature ◽

Excellent Correlation ◽

Chain Reaction ◽

Glass Cover ◽

Polymerase Chain

This paper presents the effect of temperature distributions in different heaters and channels on DNA amplification for polymerase chain reaction biochip. We utilized the Micro-Electro-Mechanical System to complete biochip accuracy. The TPX (Poly-4-methyl-pentene-1) was used as the polymer material. The microchip composed of two parts. One is the heater and temperature sensor on a top cover, the other is the microchannel and reaction chamber on a bottom substrate. Then we designed two kinds of chip materials: 1. a glass cover and a TPX substrate, 2. a TPX cover and a TPX substrate. Temperature is the most important in PCR, so the more uniform one is better. And we designed two kinds of heater. According to heat conduction simulation, we can find the best heater pattern. The simulation result is that the design of long inside distance and short outside distance between heater columns was the best one. The reagent of 10 μL was repeated twenty-five cycles to complete PCR process. The temperature controller could reach the speed of heating 20° C /sec and the speed of cooling 5°C /sec. Thus the PCR process could be achieved for twenty-five cycles within 35 minutes. Finally we used the instruments to check DNA amplification result qualitatively and quantitatively. The DNA amplification length was 108 bps. The DNA amplification of long inside distance and short outside distance between heater columns was 90.17 ng/μL, and was larger 12 ng/μL than that of equally distances. Excellent correlation between simulation analysis and experimental result was obtained in this study.

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