Journal profile · Engineering, Petroleum
Journal of the Japan Petroleum Institute
ISSN 1346-8804 · eISSN 1349-273X · Japan Petroleum Institute · JAPAN · Bimonthly · Founded 2002
Journal of the Japan Petroleum Institute: CAS Zone 4 · Engineering (2025 upgraded edition); impact factor 0.5; fully open access; review over 12 weeks (community reports); community-reported acceptance: easy; 35 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Journal of the Japan Petroleum Institute is published by Japan Petroleum Institute and is in Zone 4 of Engineering in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Catalytic Processes in Materials Science, Catalysis and Hydrodesulfurization Studies and Catalysis and Oxidation Reactions, together about 37% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
"Journal of the Japan Petroleum Institute" publishes articles on petroleum exploration, petroleum refining, petrochemicals and relevant subjects (such as natural gas, coal and so on). Topics may range from fundamentals to applications. The latter may deal with a variety of subjects, such as: case studies in the development of oil fields, design and operational data of industrial processes, performances of commercial products and others.
From the journal's Aims & Scope
Research area (LetPub): Engineering, Petroleum
Main research topics OpenAlex counts of recent articles; shares are approximate
- Catalytic Processes in Materials ScienceMaterials Science14.6%
- Catalysis and Hydrodesulfurization StudiesEngineering13.8%
- Catalysis and Oxidation ReactionsChemical Engineering8.6%
- Catalysts for Methane ReformingChemical Engineering7.6%
- Catalysis for Biomass ConversionEngineering5.9%
- Zeolite Catalysis and SynthesisChemistry5.7%
- Petroleum Processing and AnalysisChemistry5.5%
- Biodiesel Production and ApplicationsEngineering3%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Engineering Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 4 |
| Minor | Energy & Fuels | Zone 4 |
| Minor | Engineering, Petroleum | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Engineering Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 4 |
| Minor | Energy & Fuels | Zone 4 |
| Minor | Engineering, Petroleum | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Engineering Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 4 |
| Minor | Energy & Fuels | Zone 4 |
| Minor | Engineering, Petroleum | Zone 4 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 0.5LetPub ·
- CiteScore 2026-06
- 0.9LetPub ·
- SJR 2026-06
- 0.18LetPub ·
- SNIP 2026-06
- 0.22LetPub ·
- h-index
- 24LetPub ·
- h-index
- 34OpenAlex ·
- i10-index
- 284OpenAlex ·
- 2-year mean citedness
- 0.61OpenAlex ·
- Self-citation rate
- 0%LetPub ·
- Share of gold OA articles
- 98.95%LetPub ·
Volume
- Articles per year
- 33LetPub ·
Articles by year OpenAlex count · 1,179 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 30 | 30 | 5 |
| 2025 | 35 | 35 | 19 |
| 2024 | 28 | 28 | 33 |
| 2023 | 35 | 35 | 48 |
| 2022 | 30 | 30 | 64 |
| 2021 | 38 | 38 | 140 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
- Average review time (community reports)
- over 12 weeksLetPub ·
- Average acceptance (community reports)
- EasyLetPub ·
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessOpenAlex
Every article is open access; authors usually pay an article processing charge (APC).
No source has fee information yet; check the journal's website.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
Policy excerpts from the journal's websiteOpen access
- Open access Promotion of open access
J-STAGE promotes open access, which (1) provides free access to articles and (2) specifies the conditions of reuse including modification or redistribution. Over 90% of articles on J-STAGE are free to read. Open-access articles display a Creative Commons (CC) license and can be reused under the terms of the license. CC license on an article page CC license on an article PDF For more information ab…
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Japan Petroleum Institute
- Country or region
- JAPAN
- Language
- Japanese
- Frequency
- Bimonthly
- Founded
- 2002
- ISSN
- 1346-8804
- Electronic ISSN
- 1349-273X
- Official links
- Journal homepage ↗LetPub
- Submission system ↗Publisher website
FAQ
Frequently asked questions about Journal of the Japan Petroleum Institute
What CAS zone is Journal of the Japan Petroleum Institute in?
In the 2025 upgraded edition of the CAS Journal Ranking, Journal of the Japan Petroleum Institute is in Zone 4 of Engineering, and in Zone 4 of the minor category Energy & Fuels / Engineering, Petroleum. In the 2026 Xinrui edition it is in Zone 4 of Engineering. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Journal of the Japan Petroleum Institute?
The latest impact factor listed by LetPub is 0.5; CiteScore 0.9, h-index 34.
How long does peer review take at Journal of the Japan Petroleum Institute?
Authors report an average review time of over 12 weeks; the community-reported acceptance is “Easy”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Which databases index Journal of the Japan Petroleum Institute?
According to LetPub and DOAJ records, Journal of the Japan Petroleum Institute is indexed in SCIE and Scopus.
Is Journal of the Japan Petroleum Institute open access, and what is the APC?
Journal of the Japan Petroleum Institute is a fully open-access journal. Fee information is not available yet; check the journal's website.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .