共查询到20条相似文献,搜索用时 125 毫秒
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气化装置和变换装置作为高度连续化得生产装置,两装置间联系密切,本文从气化异常时对变换装置产生的影响以及变换装置异常时对变换装置产生的影响进行对比分析,摸索出气化装置与变换装置间相互制约因素,保障气化装置与变换装置能够平稳运行。 相似文献
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为提高挤出胎面质量,对胎面挤出生产线的进料装置、温控装置、贴合装置、冷却装置、裁断装置、吹分装置、分检装置和存放装置进行全面改造,取得了良好的效果。 相似文献
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《精细化工原料及中间体》2018,(4)
正该项目位于宁夏回族自治区银川市,由宁夏宝利新能源有限公司投资建设,建设规模为处理能力120万吨/年煤焦油,主要包括原料预处理装置、煤焦油深加工装置、产品精制装置、MTBE装置、高清洁轻烃改质装置、高清洁重烃改质装置、苯抽提装置、轻烃异构化装置、硫磺回收装置、甲醇制氢装置及配套的公辅设施。 相似文献
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河南省中原大化集团有限责任公司采用联产技术对三聚氰胺尾气进行回收,并对原尿素装置进行改造,新增了11万t/a尿素生产装置,并配套增设了尿素水解装置、OAT水解装置、碳铵液回收装置和尿素熔化装置。各装置彼此联系,又相对独立,充分发挥了尿素装置和三聚氰胺装置的联产优势,降低了三聚氰胺的生产成本,确保了污染物的达标排放。 相似文献
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Guangli Liu 《Desalination》2004,169(2):193-205
In the mills with wheat straw as raw material in China, the high silica content of raw material resulted in a low ratio of alkali recovery and high maintenance cost for equipment. However, till now, little progress has been made on removal of silica in the alkali recovery process of wheat straw pulping. Many researchers have investigated the feasibility of UF/RO organic membranes to treat black liquor (BL), but the success of UF/RO membranes in practice was discouraging due to their short life-span and low flux. In this study a novel process, the membrane-alkali recovery process, was developed by applying an inorganic MF membrane in the alkali recovery process. The rejection performance of inorganic MF membranes on lignin, silica and sodium salts was investigated, and the feasibility of the membrane-alkali recovery process was discussed in detail. The experimental results showed that the inorganic membranes could efficiently reject 75% of lignin and 80% of silica. A running period of more than 40 days for a 0.2 μ membrane was achieved with the maximum flux, 5001/m2h, under the conditions of TMP 0.2 MPa, crossflow velocity 2.3 m/s, and temperature 30—60°C. This newly developed membrane-alkali recovery process could efficiently reject silica. The interference of silica on the alkali recovery process was greatly decreased. Lime sludge could be reused in the membrane-alkali recovery process while it was discharged in the conventional alkali recovery process. The function of the alkali recovery boiler in the membrane-alkali recovery process was emphasized on the chemical reactor while the conventional furnace was taken as a steam regenerator and also a chemical reactor. The capital and maintenance of the new furnace could be decreased, and the operation could be simple and convenient compared with the conventional furnace. Therefore, the membrane-alkali recovery process overcame many disadvantages of the conventional alkali recovery process and fully utilized the organics and inorganics in the BL. 相似文献
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草甘膦生产中三乙胺回收工艺改进 总被引:3,自引:2,他引:1
本文介绍了从草甘膦结晶母液中回收三乙胺的工艺改进。采用中和分层与连续精馏相结合的工艺取代了原有的间歇回收工艺。新工艺的主要优点是回收率高、节能显著、操作简便。 相似文献
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Efficient gas recovery and separation in a hydrate-based system was investigated for a model gaseous mixture of R22 and nitrogen. The formed hydrate settled in the recovery vessel; excess water was recycled and the hydrate was subsequently decomposed by releasing pressure from the vessel. The gas uptake rate of R22 gas from the vapor phase and the gas recovery rate from the hydrate were determined from hydrate formation and decomposition, respectively. The gas recovery rate of R22 gas gradually increased with time. On the contrary, the nitrogen gas recovery rate was a maximum in the initial stage of hydrate decomposition. A high separation factor (S.F.) was achieved by first separating the N2-rich gas generated during initial hydrate decomposition. An efficient hydrate-based gas separation and recovery process is proposed. 相似文献