che_november-2024 - 34

convection section, which may not
be feasible for all facilities. However,
this technology can still be applied
to current steam crackers by selecting
the appropriate integration
concept. It is important to note that
integrating a GT may also require
a larger convection section for the
steam-generation bank.
Conventional GT-equipped furnaces
do not inherently contribute
to emissions reduction due to the
utilization of hydrocarbon fuelgas
for GT combustion. To fully leverage
the energy-efficiency benefits of GT
technology while addressing emissions
concerns, the same strategy
as for emissions reduction in radiation-box
combustion is proposed.
This approach involves integrating
hydrogen into both GT fuel and
burner fuel, alongside the option
carbon capture for the emitted CO2.
Beyond the scope of this study
Note that this study does not consider
all possible variations that
can impact process carbon intensity
and energy efficiency. Some of
the considerations that were outside
the scope of this study are
discussed below.
Emissivity. Emissivity analysis on
emissions reduction is excluded
from this study, since increasing
emissivity requires changing the refractory
coating, and this study only
investigated methodologies that require
minimal changes to the existing
plant. However, it has been reported
that using a high-emissivity coating
for the refractory wall improves radiation
heat transfer and consequently
increases the furnace's thermal efficiency
by 1.9% and decreases
CO2 emission by 4% while reducing
emissions [19, 20].
Unconventional feedstocks. Applying
CCUS, CO2 emissions emitted
from the steam cracker are
captured and converted into valuable
products. Captured CO2 can
be used as a feedstock for rWGS
and Fischer Tropsch, methanol-toProblems
Solved for
Chemical Engineers
Guidebooks, reference materials
and more available in the
Chemical Engineering bookstore
The Chemical Engineering Store offers a
variety of industry tools including reference
material and guidebooks. The store provides
resources that are relevant to all parts of the
chemical process industries (CPI).
olefin conversions and methanation.
These technologies transform CO2
emissions into synthetic feed for
refinery and petrochemical operations
while reducing greenhouse gas
emissions. Further studies will analyze
the lifecycle of decarbonization
using
unconventional
Final thoughts
A combination of factors must be
considered when determining the
most efficient and economically feasible
methods for decarbonizing steam
crackers. These factors include technological
innovation, technical feasibility,
economic viability, scalability and
environmental impacts.
Economic feasibility is crucial for
the successful adoption of decarbonization
strategies. The cost of
carbon capture and utilization processes
and the cost of hydrogen for
fuel switching must be competitive
with conventional methods. InvestStatement
of Ownership, Management, and Circulation (Requester Publications Only)
1. Publication Title: Chemical Enginering 2. Publication Number: 833-880 3. Filing Date:
9/26/24 4. Issue Frequency: monthly 5. Number of Issues Published Annually: 12 6. Annual
Subscription Price $199.97. Complete Mailing Address of Known Office of Publication: Access
Intelligence, 9211 Corporate Boulevard, 4th Floor, Rockville, MD 20850-3852 Contact: George
Severine Telephone: 301-354-1706 8. Complete Mailing Address of Headquarters or General
Business Office Publisher: Access Intelligence, LLC, 9211 Corporate Blvd., 4th Floor, Rockville,
MD 20850-3852 9. Full Names and Complete Mailing Addresses of Publisher, Editor, and
Managing Editor: Publisher: Matthew Grant, 9211 Corporate Blvd., 4th Floor, Rockville,
MD 20850-3852 Editor: Dorothy Lozowski, 9211 Corporate Blvd, 4th Floor, Rockville, MD
20850-3852 10. Owner if the publication is owned by a corporation, give the name and address
of the corporation immediately followed by the names and addresses of all stockholders owning
or holding 1 percent or more of the total amount of stock: PBI-CWA, LLC, AI Holdings, LLC,
9211 Corporate Blvd., 4th Floor, Rockville, MD 20850-3852. 11. Known Bondholders, Mortgagees,
and Other Security Holders Owning or Holding 1 Percent or More of Total Amount
of Bonds, Mortgages, or other Securities: None 12. Non-profit organization: not applicable. 13.
Publication: Chemical Engineering 14. Issue Date for Circulation Data: September 2024.
15. Extent and Nature of Circulation:
Average No. Copies
Each Issue During
a. Total Number of Copies (Net press run)
b. Legitimate Paid and/or Requested Distribution
(1) Outside County Paid/Requested Mail Subscriptions
(2) Inside County Paid/Requested Mail Subscriptions
(3) Sales Through Dealers and Carriers, Street Vendors
Counter Sales and Other Distribution Outside USPS
(4) Requested Copies Distributed by Other Mail Classes
c. Total Paid and/or Requested Circulation
d. Nonrequested Distribution (By Mail and Outside the Mail)
(1) Outside County Nonrequested Copies
(2) Inside-County Nonrequested Copies
(3) Nonrequested Copies Distributed Through the USPS
by Other Classes of Mail
(4) Nonrequested Copies Distributed Outside the Mail
(Include Pickup Stands, Trade Shows, Showrooms,
and Other Sources)
e. Total Norequested Distribution
f. Total Distribution (Sum of 15c and 15e)
g. Copies not Distributed (Office, Returns, Spoilage, Unused)
h. Total (Sum of 15f and g)
i. Percent Paid and/or Requested Circulation
16. Electronic Copy Distribution
a. Requested and Paid Electronic Copies
b. Total Requested Print and Electronic Copies
(Sum 15c and 16a)
c. Total Requested Copy Distribution (Sum 15f and 16a)
d. Percentage Paid and/or Requested Circultion (Both)
store.CHEMENGONLINE.com
34
20,099
1,886
21,985
249
552
801
22,786
336
23,122
96.48%
39,664
61,649
62,450
98.72%
17. Publication of Statement of Ownership for a Requester Publication is required
and will be printed in the November 2024 issue of this publication
18. Signature of Fulfillment Manager: George Severine
PS Form 3526-R, July 2014
Date: 9/26/24
23,234
20,036
2,043
22,079
251
454
705
22,784
450
23,234
96.91%
39,456
61,535
62,240
98.87%
feedstocks
with bio-feed and plastic recycling
and CCUS.
No. Copies of Single
Issue Published
Preceding 12 Months Nearest to FilingDate
23,122
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
NOVEMBER 2024
http://store.CHEMENGONLINE.com http://WWW.CHEMENGONLINE.COM
che_november-2024

Table of Contents for the Digital Edition of che_november-2024
