低发热值煤矸石制砖烧成工艺的改造

低发热值煤矸石原料制约了产能的发挥,并增加生产成本。通过对原设计烧成工艺的技术改造,达到了提高产量,降低成本,用低热值煤矸石制砖的目的。

合成氨厂低发热值火炬高度计算的探讨

合成氨厂的工艺装置在开车、停车、事故、正常生产时排放的无法收集和再加工的可燃气体、有毒气体必须经火炬处理。火炬的高度需要考虑热辐射,环保等多方面因素。本文是关于一个低发热值火炬高度的计算探讨。它介绍了火炬高度计算的2种方法。并给出了最终的结论。

危险废物富氧侧吹熔池熔炼处置新技术

本文介绍了采用富氧侧吹熔池熔炼工艺处置危险废物的工艺流程和原理,并研究了原料低发热值、富氧浓度对生产的影响。研究结果表明,熔炼自热所需要的富氧浓度随原料低发热值的升高而降低,当低发热值超过4000 kcal/kg时,采用空气熔炼就能实现自热;在自热条件下,提高富氧浓度将导致氧气量增加、烟气量减少、系统投资增加、运行成本降低。

重油膨化与燃烧技术

重油也称渣油,是原油提炼汽、柴油后的附产物。它的低发热值在1000千卡/公斤以上,是大中型燃油锅炉及公路建设必不可少的油品。但由于近年来新上烧油项目增多,用油量不断上升,加之原油不足,增产有限,致使全国重油市场趋于紧张,据《中国信息报》1993年8月30日报导。

Ultimate Composition of Main Chinese Power Coals

Calculations and analyses are made for the ultimate composition of 158 Chinese power coals. The results reveal that the carbon content on as received basis, Cr, increases linearly with the increase of the low heating value Qnot,a, on as received basis; the hydrogen content on as received basis, Hr, first increases with the increase of the volatile content on dry ash free basis Vdaf （Vdaf 〈 33.0%） and then decreases （Vdaf 〉 33.0%）; the oxygen content on as received basis, Oar, increases linearly with the increase of Vau, ranging between 2.0% and 12.5%. By comparison, the nitrogen content on as received basis N of bituminous and lean coal is higher, while the sulfur content on as received basis Sar Of anthracite is higher than bituminous coal, lean coal and lignite. The hydrogen on as received basis Hr is important for the conversion between low heating value and high heating value on as received basis for Chinese power coals, and Sr is important for the calculation of high heating value from the oxygen bomb heat value for Chinese power coals.

浅谈气源转换工程技术

对煤制气转换天然气工程中，从气质方面、输气管网、调压设备、户内燃具等方面进行技术分析，并提出相应措施。