Title:
METHOD AND SYSTEM FOR PREDICTING PRODUCT OF AROMATIC HYDROCARBON ISOMERIZATION PRODUCTION CHAIN
Document Type and Number:
WIPO Patent Application WO/2021/159822
Kind Code:
A1
Abstract:
A method and system for predicting the product of an aromatic hydrocarbon isomerization production chain, in which a surrogate model is established by means of a full description of an aromatic hydrocarbon isomerization process so as to correctly predict changes in product yield following feed and operation parameters, thus ensuring the quality of the product and the operation of the production process. The method comprises: receiving an operation condition as an input variable of a surrogate model, using product yield as an output variable, generating multiple initial sample points, and using a mechanism model the actual output response values of all of the initial sample points; establishing an RBF model according to the initial sample points and the actual output response values thereof; using a PSO algorithm to find the expected deviation between nearest neighbors as well as the sampling point having the largest sparsity product, using the mechanism model to calculate the output response value of said sampling point on the RBF model, adding the output response value into the sample points, and reconstructing the surrogate model; repeating the previous step until the upper limit for the number of sample points is reached so as to obtain a final RBF model; and using the RBF model to predict the product yield of aromatic hydrocarbon isomerization.
Inventors:
DU WENLI (CN)
YANG MINGLEI (CN)
ZHONG WEIMIN (CN)
QIAN FENG (CN)
LI ZHI (CN)
YANG MINGLEI (CN)
ZHONG WEIMIN (CN)
QIAN FENG (CN)
LI ZHI (CN)
Application Number:
PCT/CN2020/133337
Publication Date:
August 19, 2021
Filing Date:
December 02, 2020
Export Citation:
Assignee:
UNIV EAST CHINA SCIENCE & TECH (CN)
International Classes:
G06N3/00; G16C20/10; G06N3/04; G06N3/08; G16C20/30; G16C20/70
Foreign References:
| CN111312338A | 2020-06-19 | |||
| CN1510018A | 2004-07-07 | |||
| CN104361393A | 2015-02-18 | |||
| CN107844659A | 2018-03-27 | |||
| JP2002329187A | 2002-11-15 |
Other References:
XIE YUHENG, LI ZHI, YANG MINGLEI, DU WENLI: "Surrogate model of aromatic isomerization process based on adaptive sampling algorithm", CIESC JOURNAL, HUAXUE GONGYE CHUBANSHE, CN, vol. 71, no. 2, 1 January 2020 (2020-01-01), CN, pages 688 - 697, XP055835199, ISSN: 0438-1157, DOI: 10.11949/0438-1157.20190359
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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