Energy saving and modifications in the methanol process, using the NLP model optimization

Anita Kovač Kralj (Author), Peter Glavič (Author)

Abstract

The opportunities for additional profit depend very much on the existing plant and energy system. Heat and power integration can reduce fuel usage in chemical processes. Nonlinear programming contains equations which enable structural and parametric optimization. The NLP model is formulated using an optimum energy target of process integration and electricity generation using a gas turbine with separator. The reactor acts as a combustion chamber of the gas turbine plant, producing a lot of energy. The simultaneous NLP approach can account for capital cost, integration of combined heat and power, process modification and additional production of trade-offs, and can thus yield a better solution. The combined production of electricity, heat and chemical products can lead to better process efficiency. The methanol plant was optimized using a mathematical nonlinear programming model by including an additional flowrate of hydrogen in crude methanol recycle and increasing the methanol production by 2,5%. The electricity can be generated in methanol recycle using a gas turbine. The total additional profit is 2,5 MEUR/a.

Keywords

kemijska procesna tehnika;proizvodnja metanola;simultano optimiranje procesov;nelinearno programiranje;kogeneracija;povečana proizvodnja;chemical engineering;methanol production;simultaneous process optimization;nonlinear programming;cogeneration;product increase;

Data

Language:	English
Year of publishing:	2006
Typology:	1.08 - Published Scientific Conference Contribution
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
UDC:	66.012
COBISS:	10367254
Views:	1979
Downloads:	30
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary keywords:	kemijska procesna tehnika;proizvodnja metanola;simultano optimiranje procesov;nelinearno programiranje;kogeneracija;povečana proizvodnja;
URN:	URN:SI:UM:
Pages:	[8] f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;chemical technology;chemical and related industries;kemijska tehnologija;kemijske in sorodne industrije;fundamentals of chemical engineering;osnove kemijskega inženirstva;
ID:	12338