焦炭

In regard to the practical coking process, a kinetic two-dimension coordinate calculation method was established in determination of the temperature field and its stress field of coke tower shell both in radial and axial directions with reference to shell innate flow rate by FEM.

通过动态坐标法模拟了恒速上升的液体介质界面在焦炭塔内沿塔壁爬升的动态边界工况，对其在壁中引起的径向和轴向二维瞬态温度场进行了有限元计算。

The coke tower s are working under high temperature and coke in and out with hot and cold distress,and local severe distortion of the towers or dehiscence of welded seam appears frequently.

焦炭塔长期在高温及充焦、除焦的冷热疲劳作用下运行，常出现塔体局部严重变形和母材焊缝开裂问题。

The coke car moves quickly from the oven end along rails into a quench tower and the coke is sprayed with water.

运焦车沿轨道快速从高炉移动到淬火塔并用水喷淋焦炭。把面包放在烤箱里烤脆。

The coke car moves quickly from the oven end along rails into a quench tower and the coke is sprayed with water.

运焦车沿轨道快速从高炉移动到淬火塔并用水喷淋焦炭。

Analyzed the residual life of thermo-mechanical fatigue of Coke TowerAll the job having been done provided reference data for the use and maintenance of the Coke Tower of delayed coking workshop of JINXTN PETRO AND CHEMICAL COMPANY.

4根据实测数据，对焦炭塔的热机械疲劳寿命进行了评估。

The coke car moves quickly from the oven end along rail s into a quench tower and the coke is sprayed with water.

运焦车沿轨道快速从高炉移动到淬火塔并用水喷淋焦炭。

The coke car moves quickly from the oven end along rails into a quench tower and the coke is spray ed with water.

运焦车沿轨道快速从高炉移动到淬火塔并用水喷淋焦炭。

The steep stone footpaths have been heaved apart and all that remains of the gift shop is a tangle of ancient timber, dented Coke cans and dust-covered postcards.

陡峭的石路因隆起被分裂拉开，那些礼品店剩下的便是那古老的木材、凹进的焦炭罐头和被尘土覆盖的明信片彼此交缠。

The experiments for determining the reaction kinetics of Daqing atmospheric residue were performed in a continuous flow, expanded bed rector. Four-lumped reaction kinetic model was developed to account for various feed and product fractions of Daqing atmospheric residue (gases, gas oil, residue and coke). The amounts of olefins and alkyls in the gas products were further analyzed to determine reaction kinetics of gas product distributions. Hence, a combined five-lumped reaction kinetic model was obtained for catalytic pyrolysis of Daqing atmospheric residue. The kinetic constants both in four-lump model and five-lump model were evaluated. A simulator for catalytic pyrolysis process was developed by incorporating the five-lumped kinetic model into the hydrodynamic flow model.

其次利用改进的固定流化床装置考察大庆常压渣油催化裂解反应规律，筛选反应工艺参数；分析了催化裂解工艺存在的主要化学反应类型，提出了渣油一次反应和二次反应网络图；将反应原料油作为单独集总组分，而将产品中的轻质油、气体、焦炭分别作为集总，从而建立了四集总动力学模型；在此基础上，把气体产物中的目的产物低碳烯烃独立划分，得到五集总动力学模型；采用最小二乘法分析实验数据，分别得到四集总动力学模型和五集总动力学模型中各集总间相互反应转化的反应速率常数。

The effects of catalyzers such as char,phosphoric acid,KOH,NaOH and ZnCl2 on pyrolysis products were determined under the condition of microwave power 700W,pyrolysis temperature of 550℃ and time of 20 mins.

探讨了在微波功率700 W，裂解温度550℃，裂解时间20 min的工艺条件下，焦炭、磷酸、KOH、NaOH和氯化锌等催化剂对裂解产物的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。