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Aspen Plus Model Simulation and Fina...

Zhu, Tian Ai.

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Aspen Plus Model Simulation and Financial Analysis of Pyrrhotite Processing Technology Options.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Aspen Plus Model Simulation and Financial Analysis of Pyrrhotite Processing Technology Options./
作者:	Zhu, Tian Ai.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	111 p.
附註:	Source: Masters Abstracts International, Volume: 82-10.
Contained By:	Masters Abstracts International82-10.
標題:	Chemical engineering. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28315914
ISBN:	9798597082905

Aspen Plus Model Simulation and Financial Analysis of Pyrrhotite Processing Technology Options.
Zhu, Tian Ai.

Aspen Plus Model Simulation and Financial Analysis of Pyrrhotite Processing Technology Options. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 111 p.

Source: Masters Abstracts International, Volume: 82-10.

Thesis (M.A.S.)--University of Toronto (Canada), 2021.

This item must not be sold to any third party vendors.

The feasibility of a novel bioleaching two-stage process for pyrrhotite tailings treatment is evaluated using leaching kinetics and process simulation of the proposed tailing treatment process, using Microsoft Excel and Aspen Plus V10. Some operational limits encountered during the process simulation include low solids loading and abiotic conversion, which constrained by the operating pH, especially for the biotic unit. In addition, a trade-off observed between metal solution throughput and % nickel recovery.Based on the process simulation of a plant with a 500 tonne/hour tailing throughput, a financial analysis of the two-stage process predicted a net present value of -$6.9 billion, with a 15% discount rate. The main contributors that affect the net present value of the process are the capital cost and the sales revenue based on 29% sulfur and 54% nickel recovery. Comparisons with other alternative processes and closure plans indicate the need for further improvements of the two-stage process.

ISBN: 9798597082905Subjects--Topical Terms:

560457
Chemical engineering.
Subjects--Index Terms:

Bioleaching

Aspen Plus Model Simulation and Financial Analysis of Pyrrhotite Processing Technology Options.
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500 $a Source: Masters Abstracts International, Volume: 82-10.
500 $a Advisor: Saville, Bradley.
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520 $a The feasibility of a novel bioleaching two-stage process for pyrrhotite tailings treatment is evaluated using leaching kinetics and process simulation of the proposed tailing treatment process, using Microsoft Excel and Aspen Plus V10. Some operational limits encountered during the process simulation include low solids loading and abiotic conversion, which constrained by the operating pH, especially for the biotic unit. In addition, a trade-off observed between metal solution throughput and % nickel recovery.Based on the process simulation of a plant with a 500 tonne/hour tailing throughput, a financial analysis of the two-stage process predicted a net present value of -$6.9 billion, with a 15% discount rate. The main contributors that affect the net present value of the process are the capital cost and the sales revenue based on 29% sulfur and 54% nickel recovery. Comparisons with other alternative processes and closure plans indicate the need for further improvements of the two-stage process.
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653 $a Pyrrhotite tailings
653 $a Metal solution
653 $a Nickel recovery
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690 $a 0551
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