Performance of an entrained-flow gasification technology of pulverized coal in pilot-scale plant

Conveying Characteristics of Pulverized Coal in a Top‐Discharge Blow Tank System

“…The maximum blow tank pressure of the experiments was about 30 kPa, so the term "atmospheric pressure" is here employed to approximatively express the operating pressure in order to distinguish it from high pressure. The top-discharge blow tank had a capacity of 0.0169 m 3 , designed in cylindrical form with a tapering conical lower section and constructed in plexiglass for easy inspection of pulverized coal flow patterns. The riser inlet could be positioned at a variable height above the gas distribution plate, and the riser inlet height above the porous gas distribution plate (H) could be adjusted to 30, 50, 70, and 90 mm, respectively.…”

“…Thus, clean coal technology has been developed to reduce environmental problems. Pressurized entrained flow gasification [2][3][4][5] with advantages of high gasification temperature and pressure, large capacity, wide coal applicability, and high carbon conversion rate, has become a promising issue of clean coal technology. In the process of large-scale entrained flow gasification, pulverized coal must be conveyed under a pressure higher than that of the gasifier, and the pulverized coal entering the gasifier should carry as little inert gas as possible.…”

Recent development in converting coal to clean fuels in China

“…Along the progress of coal gasifier installation and commissioning in chemical, metallurgical and town gas production industry and based on the knowledge and operation experiences learned, several indigenous gasifier concepts have been conceived and scaled up to commercial scales. A summary of the performance comparison is given in Table 1, which lists operation performances of Chinese gasification technologies including East China University of Science and Technology's Opposed multi-nozzle (ECUST-OMB) [19,20] and the Hangtian Gasifier (HT-L) [20,21].…”

“…Because the gasifier can be operated at higher combustion temperature, the capacity Table 1 Performance of major coal gasification technology in China [8,9,[11][12][13][14][15][16][18][19][20]22,23]. is higher and the steam consumption is significantly reduced, therefore largely reducing the problematic waste water [8].…”

Residence time distribution and modeling of the liquid phase in an impinging stream reactor

“…Because of the high efficiency of impinging streams, it has many applications in the chemical and food industry as an alternative to conventional unit operations, which are well summarized by many researchers [2][3][4][5][6][7][8][9][10]. Recently, impinging streams have been widely used in the water-coal slurry gasification process by Wu and Guo [11,12].…”