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The Process Research on1000t/a Spinnability Asphalt Pilot Plant

Author: LiShiChao
Tutor: MaPeiSheng;SongShuQun
School: Tianjin University
Course: Chemical Engineering
Keywords: coal asphalt hydrogenation carbon fiber extraction spinnability asphalt process design
CLC: TQ522.65
Type: Master's thesis
Year: 2012
Downloads: 1
Quote: 0
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Abstract


This paper explored the new technology and Process which can be used toproduce spinnability asphalt1000t/a and asphalt extraction method for continuousproduction of intermediate. the technology made coal as raw material andtetrahydrofuran as extractant.it was on the basis of clean coal utilization and coalextraction research trials in China University of Mining and Technology andYankuang Group.Based on the work of China University of Mining and Technology, YankuangGuohong Chemicals did thet trial test and I took part in the experiment of methanol,tetrahydrofuran, baodian coal and shenmu coal to explore different coals and differentsolvent extraction conditions.Hualu engineering&technology co.,ltd and Yankuang Guohong Chemicalsresearched on the engeering process, equipment slection and raw material calculationfor the industrialization of the continous extraction process, and brought outpreliminary engineering information. I was lucky to participate in the design process.The implementation process is as follow:Pulverized coal of0.5-3mm in diameter and tetrahydrofuran extraction react inthe continuous leaching extraction with middle temperature and middle pressure,andits reaction conditions are2.0MPa,150℃.Exhaust extractor extracted through thecinder lock bucket slagging system, then entered the residue drying unit for dryingand solvent recovery.and removed and recyclyed of the solvent extracted after threefiltering into the asphalt evaporation desolventizing unit with flash temperature of100℃and pressure0.27MPa, to get raw asphalt, and then the raw asphalt was driedwith the mixture of powder and benzol hydrogen with a purity of99.18%in thecatalyst under the conditions of the hydrogenation reaction reactioned, and its processconditions of330℃to340℃,20MPa, and then polymerization reaction wasconducted for the removal of the light components of the asphaltthe. And after this allwe can get the final research product-spinnability asphalt.This paper explored the feasibility of device preliminary industrial production ina row by chemical feeding test in1000t/a spinnability asphalt pilot plant with Shenmucoal and fine methanol,and I was responsible for it. Hydrogenation of step takenunder the research output of asphalt asphalt feasibility of spinning by testing theintermediate products with gas chromatography-mass spectrometry.This paper brings out new ideas and directions in the engineering process ofcontinuous extraction to make asphalt from coal, based on these comprehensive trialresearches.

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CLC: > Industrial Technology > Chemical Industry > Coke chemical industry > The high temperature carbonization of coal > Chemical Products Processing > Asphalt processing
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