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  December 22, 2022

VIA EDGAR

United States Securities and Exchange Commission

Division of Corporation Finance

Office of Industrial Applications and Services

100 F Street NE

Washington, D.C. 20549

Attn: Dillon Hagius and Laura Crotty

Re: AMCI Acquisition Corp. II

  Amendment No. 3 to Registration Statement on Form S-4

  Filed December 12, 2022

  File No. 333-264811

Dear Mr. Hagius and Ms. Crotty:

On behalf of our client, AMCI
Acquisition Corp. II, a Delaware corporation (the “Company” or “AMCI”), we are writing to submit
the Company’s responses to the comments of the staff of the Division of Corporation Finance (the “Staff”) of
the United States Securities and Exchange Commission (the “Commission”) contained in the Staff’s letter dated
December 19, 2022 (the “Comment Letter”), with respect to the above-referenced Registration Statement on Form S-4,
filed on December 12, 2022 (the “Registration Statement”).

The Company has filed via
EDGAR Amendment No. 4 to the Registration Statement (“Amendment No. 4”), which reflects the Company’s responses
to the comments received by the Staff and certain updated information. For ease of reference, each comment contained in the Comment Letter
is printed below in bold and is followed by the Company’s response. All page references in the responses set forth below refer to
page numbers in Amendment No. 4. Capitalized terms used but not defined herein have the meanings set forth in Amendment No. 4.

Amendment No. 3 to Registration Statement on
Form S-4

Additional Conditions to the Obligations of LanzaTech, page 156

 1. You disclose on page 157 that, in the event that it becomes reasonably apparent to the parties that the Minimum Closing Cash Condition
will not be satisfied, AMCI agrees to use commercially reasonable efforts to enter into non-redemption agreements or similar agreements
as may be necessary to satisfy this Condition. Please revise to clarify whether any non-redemption agreements will be fully disclosed
for shareholders to consider in advance of the Special Meeting and, to the extent you intend to provide such information to shareholders,
disclose how you will inform your shareholders of arrangements formed after effectiveness. Please also disclose whether you have or are
currently negotiating any such non-redemption agreements.

United States Securities and Exchange Commission

 December 22, 2022

Response: The
Company acknowledges the Staff’s comment and respectively submits that while it has not yet entered into any non-redemption or similar
agreements or arrangements as of the date hereof, to the extent that it does enter into any such agreements for after effectiveness
of the Registration Statement, it intends to fully disclose such arrangements on an appropriate form on EDGAR for stockholders to consider
in advance of the Special Meeting. In connection with such disclosure, the Company may determine to adjourn or postpone the Special Meeting
to allow time for consideration of such agreement. In order to clarify the above, the Company has added disclosure on page 174
of Amendment No. 4.

LanzaJet Shareholder Loan, page 293

 2. We note your response to our prior
                                            comment 5. Please provide a quantitative and qualitative analysis supporting your determination
                                            that the Note Purchase Agreement is not material to the company within the meaning of Item
                                            601(b)(10) of Regulation S-K. In this regard we note that the aggregate principal amount
                                            of the Note Purchase Agreement could total $147 million and that certain of the notes related
                                            to this Agreement are secured by a security interest over the intellectual property owned
                                            or in-licensed by LanzaJet.

Response: In response to the Staff’s
comment, the Company has added disclosure on page 248 of Amendment No. 4 and filed the Note Purchase Agreement as
Exhibit 10.43 to Amendment No. 4.

* * *

Please do not hesitate to
contact Elliott Smith of White & Case LLP at (212) 819-7644 with any questions or comments regarding this letter.

  Sincerely,

  /s/ White & Case LLP

  White & Case LLP

cc: Nimesh Patel, AMCI Acquisition Corp. II

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